SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE
Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the ef...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Yanushevska, O. I. [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2020 |
|---|
| Schlagwörter: |
|---|
| Anmerkung: |
© The Clay Minerals Society 2020 |
|---|
| Übergeordnetes Werk: |
Enthalten in: Clays and clay minerals - Springer International Publishing, 1954, 68(2020), 5 vom: Okt., Seite 465-475 |
|---|---|
| Übergeordnetes Werk: |
volume:68 ; year:2020 ; number:5 ; month:10 ; pages:465-475 |
| Links: |
|---|
| DOI / URN: |
10.1007/s42860-020-00088-4 |
|---|
| Katalog-ID: |
OLC2121614109 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | OLC2121614109 | ||
| 003 | DE-627 | ||
| 005 | 20230504185125.0 | ||
| 007 | tu | ||
| 008 | 230504s2020 xx ||||| 00| ||eng c | ||
| 024 | 7 | |a 10.1007/s42860-020-00088-4 |2 doi | |
| 035 | |a (DE-627)OLC2121614109 | ||
| 035 | |a (DE-He213)s42860-020-00088-4-p | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 082 | 0 | 4 | |a 550 |q VZ |
| 084 | |a 13 |2 ssgn | ||
| 100 | 1 | |a Yanushevska, O. I. |e verfasserin |0 (orcid)0000-0002-3457-8965 |4 aut | |
| 245 | 1 | 0 | |a SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE |
| 264 | 1 | |c 2020 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ohne Hilfsmittel zu benutzen |b n |2 rdamedia | ||
| 338 | |a Band |b nc |2 rdacarrier | ||
| 500 | |a © The Clay Minerals Society 2020 | ||
| 520 | |a Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the effects of adding nanosized graphene-like molybdenum (Mo) and tungsten (W) sulfides on the textural and surface characteristics of composites based on native saponite and saponite pre-modified with nanoscale magnetite. The textural characteristics were investigated by the nitrogen adsorption-desorption method and scanning electron microscopy. The total acidity, Hammett Brönsted centers, and Quasi-Equilibrium Thermo Desorption (QE-TD) Lewis centers were characteristics used to probe the acid-base properties of the modified composites. In all cases, modification proved to have a significant effect on both the surface and textural properties of the clay matrix. Modification of the native saponite by graphene-like Mo and W sulfides resulted in a decrease in the specific surface area, except a slight increase in the surface area of the magnetite-containing saponite was observed. Analysis of the acid-base characteristics of native and magnetite-modified saponite (MMS) indicated the ability of modified $ MoS_{2} $ and $ WS_{2} $ additives to alter the acid-base state of the surface. The addition of graphene-like Mo and W sulfides increased the total acidity of native and MMS, with $ MoS_{2} $ modification being more promising because, in almost all the samples, saponite composite materials increased the number of both Brönsted and Lewis active centers compared with $ WS_{2,} $ which was determined by the corresponding methods. The acid-base characteristics of the saponite-containing samples, which were studied in an aqueous medium by various methods, are in good correlation with each other, and are consistent with the sorption activity of cationic and anionic dyes. | ||
| 650 | 4 | |a Acid-base properties | |
| 650 | 4 | |a Acidity | |
| 650 | 4 | |a Hammett method | |
| 650 | 4 | |a Modification | |
| 650 | 4 | |a Nanosized graphene-like MoS | |
| 650 | 4 | |a and WS | |
| 650 | 4 | |a Saponite nanocomposite materials surface characterization | |
| 700 | 1 | |a Dontsova, T. A. |4 aut | |
| 700 | 1 | |a Aleksyk, A. I. |4 aut | |
| 700 | 1 | |a Vlasenko, N. V. |4 aut | |
| 700 | 1 | |a Didenko, O. Z. |4 aut | |
| 700 | 1 | |a Nypadymka, A. S. |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Clays and clay minerals |d Springer International Publishing, 1954 |g 68(2020), 5 vom: Okt., Seite 465-475 |w (DE-627)129559369 |w (DE-600)221428-3 |w (DE-576)015019284 |x 0009-8604 |7 nnns |
| 773 | 1 | 8 | |g volume:68 |g year:2020 |g number:5 |g month:10 |g pages:465-475 |
| 856 | 4 | 1 | |u https://doi.org/10.1007/s42860-020-00088-4 |z lizenzpflichtig |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a SYSFLAG_A | ||
| 912 | |a GBV_OLC | ||
| 912 | |a SSG-OLC-TEC | ||
| 912 | |a SSG-OLC-CHE | ||
| 912 | |a SSG-OLC-GEO | ||
| 912 | |a SSG-OPC-GGO | ||
| 912 | |a GBV_ILN_21 | ||
| 912 | |a GBV_ILN_69 | ||
| 951 | |a AR | ||
| 952 | |d 68 |j 2020 |e 5 |c 10 |h 465-475 | ||
| author_variant |
o i y oi oiy t a d ta tad a i a ai aia n v v nv nvv o z d oz ozd a s n as asn |
|---|---|
| matchkey_str |
article:00098604:2020----::ufcadtutrlrprisflyaeilbs |
| hierarchy_sort_str |
2020 |
| publishDate |
2020 |
| allfields |
10.1007/s42860-020-00088-4 doi (DE-627)OLC2121614109 (DE-He213)s42860-020-00088-4-p DE-627 ger DE-627 rakwb eng 550 VZ 13 ssgn Yanushevska, O. I. verfasserin (orcid)0000-0002-3457-8965 aut SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Clay Minerals Society 2020 Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the effects of adding nanosized graphene-like molybdenum (Mo) and tungsten (W) sulfides on the textural and surface characteristics of composites based on native saponite and saponite pre-modified with nanoscale magnetite. The textural characteristics were investigated by the nitrogen adsorption-desorption method and scanning electron microscopy. The total acidity, Hammett Brönsted centers, and Quasi-Equilibrium Thermo Desorption (QE-TD) Lewis centers were characteristics used to probe the acid-base properties of the modified composites. In all cases, modification proved to have a significant effect on both the surface and textural properties of the clay matrix. Modification of the native saponite by graphene-like Mo and W sulfides resulted in a decrease in the specific surface area, except a slight increase in the surface area of the magnetite-containing saponite was observed. Analysis of the acid-base characteristics of native and magnetite-modified saponite (MMS) indicated the ability of modified $ MoS_{2} $ and $ WS_{2} $ additives to alter the acid-base state of the surface. The addition of graphene-like Mo and W sulfides increased the total acidity of native and MMS, with $ MoS_{2} $ modification being more promising because, in almost all the samples, saponite composite materials increased the number of both Brönsted and Lewis active centers compared with $ WS_{2,} $ which was determined by the corresponding methods. The acid-base characteristics of the saponite-containing samples, which were studied in an aqueous medium by various methods, are in good correlation with each other, and are consistent with the sorption activity of cationic and anionic dyes. Acid-base properties Acidity Hammett method Modification Nanosized graphene-like MoS and WS Saponite nanocomposite materials surface characterization Dontsova, T. A. aut Aleksyk, A. I. aut Vlasenko, N. V. aut Didenko, O. Z. aut Nypadymka, A. S. aut Enthalten in Clays and clay minerals Springer International Publishing, 1954 68(2020), 5 vom: Okt., Seite 465-475 (DE-627)129559369 (DE-600)221428-3 (DE-576)015019284 0009-8604 nnns volume:68 year:2020 number:5 month:10 pages:465-475 https://doi.org/10.1007/s42860-020-00088-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_69 AR 68 2020 5 10 465-475 |
| spelling |
10.1007/s42860-020-00088-4 doi (DE-627)OLC2121614109 (DE-He213)s42860-020-00088-4-p DE-627 ger DE-627 rakwb eng 550 VZ 13 ssgn Yanushevska, O. I. verfasserin (orcid)0000-0002-3457-8965 aut SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Clay Minerals Society 2020 Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the effects of adding nanosized graphene-like molybdenum (Mo) and tungsten (W) sulfides on the textural and surface characteristics of composites based on native saponite and saponite pre-modified with nanoscale magnetite. The textural characteristics were investigated by the nitrogen adsorption-desorption method and scanning electron microscopy. The total acidity, Hammett Brönsted centers, and Quasi-Equilibrium Thermo Desorption (QE-TD) Lewis centers were characteristics used to probe the acid-base properties of the modified composites. In all cases, modification proved to have a significant effect on both the surface and textural properties of the clay matrix. Modification of the native saponite by graphene-like Mo and W sulfides resulted in a decrease in the specific surface area, except a slight increase in the surface area of the magnetite-containing saponite was observed. Analysis of the acid-base characteristics of native and magnetite-modified saponite (MMS) indicated the ability of modified $ MoS_{2} $ and $ WS_{2} $ additives to alter the acid-base state of the surface. The addition of graphene-like Mo and W sulfides increased the total acidity of native and MMS, with $ MoS_{2} $ modification being more promising because, in almost all the samples, saponite composite materials increased the number of both Brönsted and Lewis active centers compared with $ WS_{2,} $ which was determined by the corresponding methods. The acid-base characteristics of the saponite-containing samples, which were studied in an aqueous medium by various methods, are in good correlation with each other, and are consistent with the sorption activity of cationic and anionic dyes. Acid-base properties Acidity Hammett method Modification Nanosized graphene-like MoS and WS Saponite nanocomposite materials surface characterization Dontsova, T. A. aut Aleksyk, A. I. aut Vlasenko, N. V. aut Didenko, O. Z. aut Nypadymka, A. S. aut Enthalten in Clays and clay minerals Springer International Publishing, 1954 68(2020), 5 vom: Okt., Seite 465-475 (DE-627)129559369 (DE-600)221428-3 (DE-576)015019284 0009-8604 nnns volume:68 year:2020 number:5 month:10 pages:465-475 https://doi.org/10.1007/s42860-020-00088-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_69 AR 68 2020 5 10 465-475 |
| allfields_unstemmed |
10.1007/s42860-020-00088-4 doi (DE-627)OLC2121614109 (DE-He213)s42860-020-00088-4-p DE-627 ger DE-627 rakwb eng 550 VZ 13 ssgn Yanushevska, O. I. verfasserin (orcid)0000-0002-3457-8965 aut SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Clay Minerals Society 2020 Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the effects of adding nanosized graphene-like molybdenum (Mo) and tungsten (W) sulfides on the textural and surface characteristics of composites based on native saponite and saponite pre-modified with nanoscale magnetite. The textural characteristics were investigated by the nitrogen adsorption-desorption method and scanning electron microscopy. The total acidity, Hammett Brönsted centers, and Quasi-Equilibrium Thermo Desorption (QE-TD) Lewis centers were characteristics used to probe the acid-base properties of the modified composites. In all cases, modification proved to have a significant effect on both the surface and textural properties of the clay matrix. Modification of the native saponite by graphene-like Mo and W sulfides resulted in a decrease in the specific surface area, except a slight increase in the surface area of the magnetite-containing saponite was observed. Analysis of the acid-base characteristics of native and magnetite-modified saponite (MMS) indicated the ability of modified $ MoS_{2} $ and $ WS_{2} $ additives to alter the acid-base state of the surface. The addition of graphene-like Mo and W sulfides increased the total acidity of native and MMS, with $ MoS_{2} $ modification being more promising because, in almost all the samples, saponite composite materials increased the number of both Brönsted and Lewis active centers compared with $ WS_{2,} $ which was determined by the corresponding methods. The acid-base characteristics of the saponite-containing samples, which were studied in an aqueous medium by various methods, are in good correlation with each other, and are consistent with the sorption activity of cationic and anionic dyes. Acid-base properties Acidity Hammett method Modification Nanosized graphene-like MoS and WS Saponite nanocomposite materials surface characterization Dontsova, T. A. aut Aleksyk, A. I. aut Vlasenko, N. V. aut Didenko, O. Z. aut Nypadymka, A. S. aut Enthalten in Clays and clay minerals Springer International Publishing, 1954 68(2020), 5 vom: Okt., Seite 465-475 (DE-627)129559369 (DE-600)221428-3 (DE-576)015019284 0009-8604 nnns volume:68 year:2020 number:5 month:10 pages:465-475 https://doi.org/10.1007/s42860-020-00088-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_69 AR 68 2020 5 10 465-475 |
| allfieldsGer |
10.1007/s42860-020-00088-4 doi (DE-627)OLC2121614109 (DE-He213)s42860-020-00088-4-p DE-627 ger DE-627 rakwb eng 550 VZ 13 ssgn Yanushevska, O. I. verfasserin (orcid)0000-0002-3457-8965 aut SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Clay Minerals Society 2020 Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the effects of adding nanosized graphene-like molybdenum (Mo) and tungsten (W) sulfides on the textural and surface characteristics of composites based on native saponite and saponite pre-modified with nanoscale magnetite. The textural characteristics were investigated by the nitrogen adsorption-desorption method and scanning electron microscopy. The total acidity, Hammett Brönsted centers, and Quasi-Equilibrium Thermo Desorption (QE-TD) Lewis centers were characteristics used to probe the acid-base properties of the modified composites. In all cases, modification proved to have a significant effect on both the surface and textural properties of the clay matrix. Modification of the native saponite by graphene-like Mo and W sulfides resulted in a decrease in the specific surface area, except a slight increase in the surface area of the magnetite-containing saponite was observed. Analysis of the acid-base characteristics of native and magnetite-modified saponite (MMS) indicated the ability of modified $ MoS_{2} $ and $ WS_{2} $ additives to alter the acid-base state of the surface. The addition of graphene-like Mo and W sulfides increased the total acidity of native and MMS, with $ MoS_{2} $ modification being more promising because, in almost all the samples, saponite composite materials increased the number of both Brönsted and Lewis active centers compared with $ WS_{2,} $ which was determined by the corresponding methods. The acid-base characteristics of the saponite-containing samples, which were studied in an aqueous medium by various methods, are in good correlation with each other, and are consistent with the sorption activity of cationic and anionic dyes. Acid-base properties Acidity Hammett method Modification Nanosized graphene-like MoS and WS Saponite nanocomposite materials surface characterization Dontsova, T. A. aut Aleksyk, A. I. aut Vlasenko, N. V. aut Didenko, O. Z. aut Nypadymka, A. S. aut Enthalten in Clays and clay minerals Springer International Publishing, 1954 68(2020), 5 vom: Okt., Seite 465-475 (DE-627)129559369 (DE-600)221428-3 (DE-576)015019284 0009-8604 nnns volume:68 year:2020 number:5 month:10 pages:465-475 https://doi.org/10.1007/s42860-020-00088-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_69 AR 68 2020 5 10 465-475 |
| allfieldsSound |
10.1007/s42860-020-00088-4 doi (DE-627)OLC2121614109 (DE-He213)s42860-020-00088-4-p DE-627 ger DE-627 rakwb eng 550 VZ 13 ssgn Yanushevska, O. I. verfasserin (orcid)0000-0002-3457-8965 aut SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Clay Minerals Society 2020 Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the effects of adding nanosized graphene-like molybdenum (Mo) and tungsten (W) sulfides on the textural and surface characteristics of composites based on native saponite and saponite pre-modified with nanoscale magnetite. The textural characteristics were investigated by the nitrogen adsorption-desorption method and scanning electron microscopy. The total acidity, Hammett Brönsted centers, and Quasi-Equilibrium Thermo Desorption (QE-TD) Lewis centers were characteristics used to probe the acid-base properties of the modified composites. In all cases, modification proved to have a significant effect on both the surface and textural properties of the clay matrix. Modification of the native saponite by graphene-like Mo and W sulfides resulted in a decrease in the specific surface area, except a slight increase in the surface area of the magnetite-containing saponite was observed. Analysis of the acid-base characteristics of native and magnetite-modified saponite (MMS) indicated the ability of modified $ MoS_{2} $ and $ WS_{2} $ additives to alter the acid-base state of the surface. The addition of graphene-like Mo and W sulfides increased the total acidity of native and MMS, with $ MoS_{2} $ modification being more promising because, in almost all the samples, saponite composite materials increased the number of both Brönsted and Lewis active centers compared with $ WS_{2,} $ which was determined by the corresponding methods. The acid-base characteristics of the saponite-containing samples, which were studied in an aqueous medium by various methods, are in good correlation with each other, and are consistent with the sorption activity of cationic and anionic dyes. Acid-base properties Acidity Hammett method Modification Nanosized graphene-like MoS and WS Saponite nanocomposite materials surface characterization Dontsova, T. A. aut Aleksyk, A. I. aut Vlasenko, N. V. aut Didenko, O. Z. aut Nypadymka, A. S. aut Enthalten in Clays and clay minerals Springer International Publishing, 1954 68(2020), 5 vom: Okt., Seite 465-475 (DE-627)129559369 (DE-600)221428-3 (DE-576)015019284 0009-8604 nnns volume:68 year:2020 number:5 month:10 pages:465-475 https://doi.org/10.1007/s42860-020-00088-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_69 AR 68 2020 5 10 465-475 |
| language |
English |
| source |
Enthalten in Clays and clay minerals 68(2020), 5 vom: Okt., Seite 465-475 volume:68 year:2020 number:5 month:10 pages:465-475 |
| sourceStr |
Enthalten in Clays and clay minerals 68(2020), 5 vom: Okt., Seite 465-475 volume:68 year:2020 number:5 month:10 pages:465-475 |
| format_phy_str_mv |
Article |
| institution |
findex.gbv.de |
| topic_facet |
Acid-base properties Acidity Hammett method Modification Nanosized graphene-like MoS and WS Saponite nanocomposite materials surface characterization |
| dewey-raw |
550 |
| isfreeaccess_bool |
false |
| container_title |
Clays and clay minerals |
| authorswithroles_txt_mv |
Yanushevska, O. I. @@aut@@ Dontsova, T. A. @@aut@@ Aleksyk, A. I. @@aut@@ Vlasenko, N. V. @@aut@@ Didenko, O. Z. @@aut@@ Nypadymka, A. S. @@aut@@ |
| publishDateDaySort_date |
2020-10-01T00:00:00Z |
| hierarchy_top_id |
129559369 |
| dewey-sort |
3550 |
| id |
OLC2121614109 |
| language_de |
englisch |
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000naa a22002652 4500</leader><controlfield tag="001">OLC2121614109</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230504185125.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">230504s2020 xx ||||| 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s42860-020-00088-4</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC2121614109</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-He213)s42860-020-00088-4-p</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">550</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">13</subfield><subfield code="2">ssgn</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Yanushevska, O. I.</subfield><subfield code="e">verfasserin</subfield><subfield code="0">(orcid)0000-0002-3457-8965</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2020</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© The Clay Minerals Society 2020</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the effects of adding nanosized graphene-like molybdenum (Mo) and tungsten (W) sulfides on the textural and surface characteristics of composites based on native saponite and saponite pre-modified with nanoscale magnetite. The textural characteristics were investigated by the nitrogen adsorption-desorption method and scanning electron microscopy. The total acidity, Hammett Brönsted centers, and Quasi-Equilibrium Thermo Desorption (QE-TD) Lewis centers were characteristics used to probe the acid-base properties of the modified composites. In all cases, modification proved to have a significant effect on both the surface and textural properties of the clay matrix. Modification of the native saponite by graphene-like Mo and W sulfides resulted in a decrease in the specific surface area, except a slight increase in the surface area of the magnetite-containing saponite was observed. Analysis of the acid-base characteristics of native and magnetite-modified saponite (MMS) indicated the ability of modified $ MoS_{2} $ and $ WS_{2} $ additives to alter the acid-base state of the surface. The addition of graphene-like Mo and W sulfides increased the total acidity of native and MMS, with $ MoS_{2} $ modification being more promising because, in almost all the samples, saponite composite materials increased the number of both Brönsted and Lewis active centers compared with $ WS_{2,} $ which was determined by the corresponding methods. The acid-base characteristics of the saponite-containing samples, which were studied in an aqueous medium by various methods, are in good correlation with each other, and are consistent with the sorption activity of cationic and anionic dyes.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Acid-base properties</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Acidity</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Hammett method</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Modification</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Nanosized graphene-like MoS</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">and WS</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Saponite nanocomposite materials surface characterization</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dontsova, T. A.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Aleksyk, A. I.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Vlasenko, N. V.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Didenko, O. Z.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Nypadymka, A. S.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Clays and clay minerals</subfield><subfield code="d">Springer International Publishing, 1954</subfield><subfield code="g">68(2020), 5 vom: Okt., Seite 465-475</subfield><subfield code="w">(DE-627)129559369</subfield><subfield code="w">(DE-600)221428-3</subfield><subfield code="w">(DE-576)015019284</subfield><subfield code="x">0009-8604</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:68</subfield><subfield code="g">year:2020</subfield><subfield code="g">number:5</subfield><subfield code="g">month:10</subfield><subfield code="g">pages:465-475</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">https://doi.org/10.1007/s42860-020-00088-4</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-TEC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-CHE</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-GEO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-GGO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_21</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">68</subfield><subfield code="j">2020</subfield><subfield code="e">5</subfield><subfield code="c">10</subfield><subfield code="h">465-475</subfield></datafield></record></collection>
|
| author |
Yanushevska, O. I. |
| spellingShingle |
Yanushevska, O. I. ddc 550 ssgn 13 misc Acid-base properties misc Acidity misc Hammett method misc Modification misc Nanosized graphene-like MoS misc and WS misc Saponite nanocomposite materials surface characterization SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE |
| authorStr |
Yanushevska, O. I. |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)129559369 |
| format |
Article |
| dewey-ones |
550 - Earth sciences |
| delete_txt_mv |
keep |
| author_role |
aut aut aut aut aut aut |
| collection |
OLC |
| remote_str |
false |
| illustrated |
Not Illustrated |
| issn |
0009-8604 |
| topic_title |
550 VZ 13 ssgn SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE Acid-base properties Acidity Hammett method Modification Nanosized graphene-like MoS and WS Saponite nanocomposite materials surface characterization |
| topic |
ddc 550 ssgn 13 misc Acid-base properties misc Acidity misc Hammett method misc Modification misc Nanosized graphene-like MoS misc and WS misc Saponite nanocomposite materials surface characterization |
| topic_unstemmed |
ddc 550 ssgn 13 misc Acid-base properties misc Acidity misc Hammett method misc Modification misc Nanosized graphene-like MoS misc and WS misc Saponite nanocomposite materials surface characterization |
| topic_browse |
ddc 550 ssgn 13 misc Acid-base properties misc Acidity misc Hammett method misc Modification misc Nanosized graphene-like MoS misc and WS misc Saponite nanocomposite materials surface characterization |
| format_facet |
Aufsätze Gedruckte Aufsätze |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
nc |
| hierarchy_parent_title |
Clays and clay minerals |
| hierarchy_parent_id |
129559369 |
| dewey-tens |
550 - Earth sciences & geology |
| hierarchy_top_title |
Clays and clay minerals |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)129559369 (DE-600)221428-3 (DE-576)015019284 |
| title |
SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE |
| ctrlnum |
(DE-627)OLC2121614109 (DE-He213)s42860-020-00088-4-p |
| title_full |
SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE |
| author_sort |
Yanushevska, O. I. |
| journal |
Clays and clay minerals |
| journalStr |
Clays and clay minerals |
| lang_code |
eng |
| isOA_bool |
false |
| dewey-hundreds |
500 - Science |
| recordtype |
marc |
| publishDateSort |
2020 |
| contenttype_str_mv |
txt |
| container_start_page |
465 |
| author_browse |
Yanushevska, O. I. Dontsova, T. A. Aleksyk, A. I. Vlasenko, N. V. Didenko, O. Z. Nypadymka, A. S. |
| container_volume |
68 |
| class |
550 VZ 13 ssgn |
| format_se |
Aufsätze |
| author-letter |
Yanushevska, O. I. |
| doi_str_mv |
10.1007/s42860-020-00088-4 |
| normlink |
(ORCID)0000-0002-3457-8965 |
| normlink_prefix_str_mv |
(orcid)0000-0002-3457-8965 |
| dewey-full |
550 |
| title_sort |
surface and structural properties of clay materials based on natural saponite |
| title_auth |
SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE |
| abstract |
Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the effects of adding nanosized graphene-like molybdenum (Mo) and tungsten (W) sulfides on the textural and surface characteristics of composites based on native saponite and saponite pre-modified with nanoscale magnetite. The textural characteristics were investigated by the nitrogen adsorption-desorption method and scanning electron microscopy. The total acidity, Hammett Brönsted centers, and Quasi-Equilibrium Thermo Desorption (QE-TD) Lewis centers were characteristics used to probe the acid-base properties of the modified composites. In all cases, modification proved to have a significant effect on both the surface and textural properties of the clay matrix. Modification of the native saponite by graphene-like Mo and W sulfides resulted in a decrease in the specific surface area, except a slight increase in the surface area of the magnetite-containing saponite was observed. Analysis of the acid-base characteristics of native and magnetite-modified saponite (MMS) indicated the ability of modified $ MoS_{2} $ and $ WS_{2} $ additives to alter the acid-base state of the surface. The addition of graphene-like Mo and W sulfides increased the total acidity of native and MMS, with $ MoS_{2} $ modification being more promising because, in almost all the samples, saponite composite materials increased the number of both Brönsted and Lewis active centers compared with $ WS_{2,} $ which was determined by the corresponding methods. The acid-base characteristics of the saponite-containing samples, which were studied in an aqueous medium by various methods, are in good correlation with each other, and are consistent with the sorption activity of cationic and anionic dyes. © The Clay Minerals Society 2020 |
| abstractGer |
Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the effects of adding nanosized graphene-like molybdenum (Mo) and tungsten (W) sulfides on the textural and surface characteristics of composites based on native saponite and saponite pre-modified with nanoscale magnetite. The textural characteristics were investigated by the nitrogen adsorption-desorption method and scanning electron microscopy. The total acidity, Hammett Brönsted centers, and Quasi-Equilibrium Thermo Desorption (QE-TD) Lewis centers were characteristics used to probe the acid-base properties of the modified composites. In all cases, modification proved to have a significant effect on both the surface and textural properties of the clay matrix. Modification of the native saponite by graphene-like Mo and W sulfides resulted in a decrease in the specific surface area, except a slight increase in the surface area of the magnetite-containing saponite was observed. Analysis of the acid-base characteristics of native and magnetite-modified saponite (MMS) indicated the ability of modified $ MoS_{2} $ and $ WS_{2} $ additives to alter the acid-base state of the surface. The addition of graphene-like Mo and W sulfides increased the total acidity of native and MMS, with $ MoS_{2} $ modification being more promising because, in almost all the samples, saponite composite materials increased the number of both Brönsted and Lewis active centers compared with $ WS_{2,} $ which was determined by the corresponding methods. The acid-base characteristics of the saponite-containing samples, which were studied in an aqueous medium by various methods, are in good correlation with each other, and are consistent with the sorption activity of cationic and anionic dyes. © The Clay Minerals Society 2020 |
| abstract_unstemmed |
Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the effects of adding nanosized graphene-like molybdenum (Mo) and tungsten (W) sulfides on the textural and surface characteristics of composites based on native saponite and saponite pre-modified with nanoscale magnetite. The textural characteristics were investigated by the nitrogen adsorption-desorption method and scanning electron microscopy. The total acidity, Hammett Brönsted centers, and Quasi-Equilibrium Thermo Desorption (QE-TD) Lewis centers were characteristics used to probe the acid-base properties of the modified composites. In all cases, modification proved to have a significant effect on both the surface and textural properties of the clay matrix. Modification of the native saponite by graphene-like Mo and W sulfides resulted in a decrease in the specific surface area, except a slight increase in the surface area of the magnetite-containing saponite was observed. Analysis of the acid-base characteristics of native and magnetite-modified saponite (MMS) indicated the ability of modified $ MoS_{2} $ and $ WS_{2} $ additives to alter the acid-base state of the surface. The addition of graphene-like Mo and W sulfides increased the total acidity of native and MMS, with $ MoS_{2} $ modification being more promising because, in almost all the samples, saponite composite materials increased the number of both Brönsted and Lewis active centers compared with $ WS_{2,} $ which was determined by the corresponding methods. The acid-base characteristics of the saponite-containing samples, which were studied in an aqueous medium by various methods, are in good correlation with each other, and are consistent with the sorption activity of cationic and anionic dyes. © The Clay Minerals Society 2020 |
| collection_details |
GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_69 |
| container_issue |
5 |
| title_short |
SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE |
| url |
https://doi.org/10.1007/s42860-020-00088-4 |
| remote_bool |
false |
| author2 |
Dontsova, T. A. Aleksyk, A. I. Vlasenko, N. V. Didenko, O. Z. Nypadymka, A. S. |
| author2Str |
Dontsova, T. A. Aleksyk, A. I. Vlasenko, N. V. Didenko, O. Z. Nypadymka, A. S. |
| ppnlink |
129559369 |
| mediatype_str_mv |
n |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| doi_str |
10.1007/s42860-020-00088-4 |
| up_date |
2024-07-04T07:33:31.661Z |
| _version_ |
1803632940587941888 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000naa a22002652 4500</leader><controlfield tag="001">OLC2121614109</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230504185125.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">230504s2020 xx ||||| 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s42860-020-00088-4</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC2121614109</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-He213)s42860-020-00088-4-p</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">550</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">13</subfield><subfield code="2">ssgn</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Yanushevska, O. I.</subfield><subfield code="e">verfasserin</subfield><subfield code="0">(orcid)0000-0002-3457-8965</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">SURFACE AND STRUCTURAL PROPERTIES OF CLAY MATERIALS BASED ON NATURAL SAPONITE</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2020</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© The Clay Minerals Society 2020</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the present paper was to characterize the effects of adding nanosized graphene-like molybdenum (Mo) and tungsten (W) sulfides on the textural and surface characteristics of composites based on native saponite and saponite pre-modified with nanoscale magnetite. The textural characteristics were investigated by the nitrogen adsorption-desorption method and scanning electron microscopy. The total acidity, Hammett Brönsted centers, and Quasi-Equilibrium Thermo Desorption (QE-TD) Lewis centers were characteristics used to probe the acid-base properties of the modified composites. In all cases, modification proved to have a significant effect on both the surface and textural properties of the clay matrix. Modification of the native saponite by graphene-like Mo and W sulfides resulted in a decrease in the specific surface area, except a slight increase in the surface area of the magnetite-containing saponite was observed. Analysis of the acid-base characteristics of native and magnetite-modified saponite (MMS) indicated the ability of modified $ MoS_{2} $ and $ WS_{2} $ additives to alter the acid-base state of the surface. The addition of graphene-like Mo and W sulfides increased the total acidity of native and MMS, with $ MoS_{2} $ modification being more promising because, in almost all the samples, saponite composite materials increased the number of both Brönsted and Lewis active centers compared with $ WS_{2,} $ which was determined by the corresponding methods. The acid-base characteristics of the saponite-containing samples, which were studied in an aqueous medium by various methods, are in good correlation with each other, and are consistent with the sorption activity of cationic and anionic dyes.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Acid-base properties</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Acidity</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Hammett method</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Modification</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Nanosized graphene-like MoS</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">and WS</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Saponite nanocomposite materials surface characterization</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dontsova, T. A.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Aleksyk, A. I.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Vlasenko, N. V.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Didenko, O. Z.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Nypadymka, A. S.</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Clays and clay minerals</subfield><subfield code="d">Springer International Publishing, 1954</subfield><subfield code="g">68(2020), 5 vom: Okt., Seite 465-475</subfield><subfield code="w">(DE-627)129559369</subfield><subfield code="w">(DE-600)221428-3</subfield><subfield code="w">(DE-576)015019284</subfield><subfield code="x">0009-8604</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:68</subfield><subfield code="g">year:2020</subfield><subfield code="g">number:5</subfield><subfield code="g">month:10</subfield><subfield code="g">pages:465-475</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">https://doi.org/10.1007/s42860-020-00088-4</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-TEC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-CHE</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-GEO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-GGO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_21</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">68</subfield><subfield code="j">2020</subfield><subfield code="e">5</subfield><subfield code="c">10</subfield><subfield code="h">465-475</subfield></datafield></record></collection>
|
| score |
7.4005966 |