Reductive reactivity of borohydride- and dithionite-synthesized iron-based nanoparticles: A comparative study

In this study sodium dithionite (NaS2O4) and sodium borohydride (NaBH4) were employed as reducing agents for the synthesis of nanosized iron-based particles. The particles formed using NaBH4 (denoted nFe(BH4)) principally contained (as expected) Fe(0) according to XAS and XRD analyses while the part...
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Autor*in:	Ma, Xiaoming [verfasserIn] He, Di Jones, Adele M Collins, Richard N Waite, T David

Format:	Artikel
Sprache:	Englisch

Erschienen:	2016

Rechteinformationen:	Nutzungsrecht: Copyright © 2015 Elsevier B.V. All rights reserved.

Übergeordnetes Werk:	Enthalten in: Journal of hazardous materials - Amsterdam : Elsevier, 1975, 303(2016), Seite 101-110
Übergeordnetes Werk:	volume:303 ; year:2016 ; pages:101-110

Links:	Volltext Link aufrufen

DOI / URN:	10.1016/j.jhazmat.2015.10.009

Katalog-ID:	OLC1970402385

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520			\|a In this study sodium dithionite (NaS2O4) and sodium borohydride (NaBH4) were employed as reducing agents for the synthesis of nanosized iron-based particles. The particles formed using NaBH4 (denoted nFe(BH4)) principally contained (as expected) Fe(0) according to XAS and XRD analyses while the particles synthesized using NaS2O4, (denoted nFe(S2O4)) were dominated by the mixed Fe(II)/Fe(III) mineral magnetite (Fe3O4) though with possible presence of Fe(0). The ability of both particles to reduce trichloroethylene (TCE) under analogous conditions demonstrated remarkable differences with nFe(BH4) resulting in complete reduction of 1.5mM of TCE in 2h while nFe(S2O4) were unable to effect complete reduction of TCE in 120 h. Moreover, acetylene was the major reaction product formed in the presence of nFe(S2O4) while the major reaction product formed following reaction with nFe(BH4) was ethylene, which was further reduced to ethane as the reaction proceeded. Considering that effective Pd reduction to Pd(0) requires the presence of Fe(0), this is consistent with our finding that Fe(0) is not the dominant phase formed when employing dithionite as a reducing agent under the conditions employed in this study.
540			\|a Nutzungsrecht: Copyright © 2015 Elsevier B.V. All rights reserved.
700	1		\|a He, Di \|4 oth
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spelling	10.1016/j.jhazmat.2015.10.009 doi PQ20160430 (DE-627)OLC1970402385 (DE-599)GBVOLC1970402385 (PRQ)c2309-6a6f4ea17c98937a27f5a4cd438ebd769c400b9fc8f73025db9773384c3749f20 (KEY)0002474020160000303000000101reductivereactivityofborohydrideanddithionitesynth DE-627 ger DE-627 rakwb eng 530 DNB 43.13 bkl 50.17 bkl 58.53 bkl Ma, Xiaoming verfasserin aut Reductive reactivity of borohydride- and dithionite-synthesized iron-based nanoparticles: A comparative study 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In this study sodium dithionite (NaS2O4) and sodium borohydride (NaBH4) were employed as reducing agents for the synthesis of nanosized iron-based particles. The particles formed using NaBH4 (denoted nFe(BH4)) principally contained (as expected) Fe(0) according to XAS and XRD analyses while the particles synthesized using NaS2O4, (denoted nFe(S2O4)) were dominated by the mixed Fe(II)/Fe(III) mineral magnetite (Fe3O4) though with possible presence of Fe(0). The ability of both particles to reduce trichloroethylene (TCE) under analogous conditions demonstrated remarkable differences with nFe(BH4) resulting in complete reduction of 1.5mM of TCE in 2h while nFe(S2O4) were unable to effect complete reduction of TCE in 120 h. Moreover, acetylene was the major reaction product formed in the presence of nFe(S2O4) while the major reaction product formed following reaction with nFe(BH4) was ethylene, which was further reduced to ethane as the reaction proceeded. Considering that effective Pd reduction to Pd(0) requires the presence of Fe(0), this is consistent with our finding that Fe(0) is not the dominant phase formed when employing dithionite as a reducing agent under the conditions employed in this study. Nutzungsrecht: Copyright © 2015 Elsevier B.V. All rights reserved. He, Di oth Jones, Adele M oth Collins, Richard N oth Waite, T David oth Enthalten in Journal of hazardous materials Amsterdam : Elsevier, 1975 303(2016), Seite 101-110 (DE-627)129442305 (DE-600)195278-X (DE-576)9129442303 0304-3894 nnns volume:303 year:2016 pages:101-110 http://dx.doi.org/10.1016/j.jhazmat.2015.10.009 Volltext http://www.ncbi.nlm.nih.gov/pubmed/26513569 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_70 43.13 AVZ 50.17 AVZ 58.53 AVZ AR 303 2016 101-110
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topic_title	530 DNB 43.13 bkl 50.17 bkl 58.53 bkl Reductive reactivity of borohydride- and dithionite-synthesized iron-based nanoparticles: A comparative study
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title	Reductive reactivity of borohydride- and dithionite-synthesized iron-based nanoparticles: A comparative study
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title_full	Reductive reactivity of borohydride- and dithionite-synthesized iron-based nanoparticles: A comparative study
author_sort	Ma, Xiaoming
journal	Journal of hazardous materials
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doi_str_mv	10.1016/j.jhazmat.2015.10.009
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title_sort	reductive reactivity of borohydride- and dithionite-synthesized iron-based nanoparticles: a comparative study
title_auth	Reductive reactivity of borohydride- and dithionite-synthesized iron-based nanoparticles: A comparative study
abstract	In this study sodium dithionite (NaS2O4) and sodium borohydride (NaBH4) were employed as reducing agents for the synthesis of nanosized iron-based particles. The particles formed using NaBH4 (denoted nFe(BH4)) principally contained (as expected) Fe(0) according to XAS and XRD analyses while the particles synthesized using NaS2O4, (denoted nFe(S2O4)) were dominated by the mixed Fe(II)/Fe(III) mineral magnetite (Fe3O4) though with possible presence of Fe(0). The ability of both particles to reduce trichloroethylene (TCE) under analogous conditions demonstrated remarkable differences with nFe(BH4) resulting in complete reduction of 1.5mM of TCE in 2h while nFe(S2O4) were unable to effect complete reduction of TCE in 120 h. Moreover, acetylene was the major reaction product formed in the presence of nFe(S2O4) while the major reaction product formed following reaction with nFe(BH4) was ethylene, which was further reduced to ethane as the reaction proceeded. Considering that effective Pd reduction to Pd(0) requires the presence of Fe(0), this is consistent with our finding that Fe(0) is not the dominant phase formed when employing dithionite as a reducing agent under the conditions employed in this study.
abstractGer	In this study sodium dithionite (NaS2O4) and sodium borohydride (NaBH4) were employed as reducing agents for the synthesis of nanosized iron-based particles. The particles formed using NaBH4 (denoted nFe(BH4)) principally contained (as expected) Fe(0) according to XAS and XRD analyses while the particles synthesized using NaS2O4, (denoted nFe(S2O4)) were dominated by the mixed Fe(II)/Fe(III) mineral magnetite (Fe3O4) though with possible presence of Fe(0). The ability of both particles to reduce trichloroethylene (TCE) under analogous conditions demonstrated remarkable differences with nFe(BH4) resulting in complete reduction of 1.5mM of TCE in 2h while nFe(S2O4) were unable to effect complete reduction of TCE in 120 h. Moreover, acetylene was the major reaction product formed in the presence of nFe(S2O4) while the major reaction product formed following reaction with nFe(BH4) was ethylene, which was further reduced to ethane as the reaction proceeded. Considering that effective Pd reduction to Pd(0) requires the presence of Fe(0), this is consistent with our finding that Fe(0) is not the dominant phase formed when employing dithionite as a reducing agent under the conditions employed in this study.
abstract_unstemmed	In this study sodium dithionite (NaS2O4) and sodium borohydride (NaBH4) were employed as reducing agents for the synthesis of nanosized iron-based particles. The particles formed using NaBH4 (denoted nFe(BH4)) principally contained (as expected) Fe(0) according to XAS and XRD analyses while the particles synthesized using NaS2O4, (denoted nFe(S2O4)) were dominated by the mixed Fe(II)/Fe(III) mineral magnetite (Fe3O4) though with possible presence of Fe(0). The ability of both particles to reduce trichloroethylene (TCE) under analogous conditions demonstrated remarkable differences with nFe(BH4) resulting in complete reduction of 1.5mM of TCE in 2h while nFe(S2O4) were unable to effect complete reduction of TCE in 120 h. Moreover, acetylene was the major reaction product formed in the presence of nFe(S2O4) while the major reaction product formed following reaction with nFe(BH4) was ethylene, which was further reduced to ethane as the reaction proceeded. Considering that effective Pd reduction to Pd(0) requires the presence of Fe(0), this is consistent with our finding that Fe(0) is not the dominant phase formed when employing dithionite as a reducing agent under the conditions employed in this study.
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title_short	Reductive reactivity of borohydride- and dithionite-synthesized iron-based nanoparticles: A comparative study
url	http://dx.doi.org/10.1016/j.jhazmat.2015.10.009 http://www.ncbi.nlm.nih.gov/pubmed/26513569
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author2	He, Di Jones, Adele M Collins, Richard N Waite, T David
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doi_str	10.1016/j.jhazmat.2015.10.009
up_date	2024-07-03T15:13:01.392Z
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