Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites

Abstract Mesoporous Y zeolites were prepared by the sequential chemical dealumination (using chelating agents such as ethylenediaminetetraacetic acid, $ H_{4} $EDTA, and citric acid aqueous solutions) and alkaline desilication (using sodium hydroxide, NaOH, aqueous solutions) treatments. Specifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed as the alternative to conventional alkaline treatments which are performed under hydrothermal conditions. In comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparatively enhanced efficiency (with the reduced treatment time, i.e., 5 min vs. 30 min, all with 0.2 mol·$ L^{−1} $ NaOH at 65°C) in treating the deal-uminated Y zeolites for creating mesoporosity. For example, after the treatment of a dealuminated zeolite Y (using 0.1 mol·$ L^{−1} $ H4EDTA at 100°C for 6 h), the ultrasonic treatment produced the mesoporous zeolite Y with the specific external surface area (Sexternal) of 160 $ m^{2} $·g·−1and mesopore volume (Vmeso) of 0.22 $ cm^{3} $·$ g^{−1} $, being slightly higher than that by the conventional method (i.e., Sextemal= 128 $ m^{2} $·$ g^{−1} $ and Vmeso = 0.19 $ cm^{3} $·$ g^{−1} $). The acidic property and catalytic activity (in catalytic cracking of n-octane) of mesoporous Y zeolites obtained by the two methods were comparable. The ultrasonic desilication treatment was found to be generic, also being effective to treat the dealuminated Y zeolites by citric acid. Additionally, the first step of chemical dealumination treatment was crucial to enable the effective creation of mesopores in the parent Y zeolite (with a silicon-to-aluminium ratio, Si/Al = 2.6) regardless of the subsequent alkaline desilication treatment (i.e., ultrasonic or hydrothermal). Therefore, appropriate selection of the condition of the chemical dealumination treatment based on the property of parent zeolites, such as Si/Al ratio and crystallinity, is important for making mesoporous zeolites effectively. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Zhang, Rongxin [verfasserIn] Zhong, Peinan [verfasserIn] Arandiyan, Hamidreza [verfasserIn] Guan, Yanan [verfasserIn] Liu, Jinmin [verfasserIn] Wang, Na [verfasserIn] Jiao, Yilai [verfasserIn] Fan, Xiaolei [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	zeolite Y mesoporous zeolite post-synthesis treatment ultrasound chemical dealumination treatment alkaline desilication treatment

Übergeordnetes Werk:	Enthalten in: Frontiers of chemical engineering in China - Beijing : Higher Education Press, 2007, 14(2020), 2 vom: 21. Feb., Seite 275-287
Übergeordnetes Werk:	volume:14 ; year:2020 ; number:2 ; day:21 ; month:02 ; pages:275-287

Links:	Volltext

DOI / URN:	10.1007/s11705-019-1905-1

Katalog-ID:	SPR039260941

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520			\|a Abstract Mesoporous Y zeolites were prepared by the sequential chemical dealumination (using chelating agents such as ethylenediaminetetraacetic acid, $ H_{4} $EDTA, and citric acid aqueous solutions) and alkaline desilication (using sodium hydroxide, NaOH, aqueous solutions) treatments. Specifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed as the alternative to conventional alkaline treatments which are performed under hydrothermal conditions. In comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparatively enhanced efficiency (with the reduced treatment time, i.e., 5 min vs. 30 min, all with 0.2 mol·$ L^{−1} $ NaOH at 65°C) in treating the deal-uminated Y zeolites for creating mesoporosity. For example, after the treatment of a dealuminated zeolite Y (using 0.1 mol·$ L^{−1} $ H4EDTA at 100°C for 6 h), the ultrasonic treatment produced the mesoporous zeolite Y with the specific external surface area (Sexternal) of 160 $ m^{2} $·g·−1and mesopore volume (Vmeso) of 0.22 $ cm^{3} $·$ g^{−1} $, being slightly higher than that by the conventional method (i.e., Sextemal= 128 $ m^{2} $·$ g^{−1} $ and Vmeso = 0.19 $ cm^{3} $·$ g^{−1} $). The acidic property and catalytic activity (in catalytic cracking of n-octane) of mesoporous Y zeolites obtained by the two methods were comparable. The ultrasonic desilication treatment was found to be generic, also being effective to treat the dealuminated Y zeolites by citric acid. Additionally, the first step of chemical dealumination treatment was crucial to enable the effective creation of mesopores in the parent Y zeolite (with a silicon-to-aluminium ratio, Si/Al = 2.6) regardless of the subsequent alkaline desilication treatment (i.e., ultrasonic or hydrothermal). Therefore, appropriate selection of the condition of the chemical dealumination treatment based on the property of parent zeolites, such as Si/Al ratio and crystallinity, is important for making mesoporous zeolites effectively.
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700	1		\|a Wang, Na \|e verfasserin \|4 aut
700	1		\|a Jiao, Yilai \|e verfasserin \|4 aut
700	1		\|a Fan, Xiaolei \|e verfasserin \|4 aut
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author_variant	r z rz p z pz h a ha y g yg j l jl n w nw y j yj x f xf
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allfields	10.1007/s11705-019-1905-1 doi (DE-627)SPR039260941 (SPR)s11705-019-1905-1-e DE-627 ger DE-627 rakwb eng 540 ASE Zhang, Rongxin verfasserin aut Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mesoporous Y zeolites were prepared by the sequential chemical dealumination (using chelating agents such as ethylenediaminetetraacetic acid, $ H_{4} $EDTA, and citric acid aqueous solutions) and alkaline desilication (using sodium hydroxide, NaOH, aqueous solutions) treatments. Specifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed as the alternative to conventional alkaline treatments which are performed under hydrothermal conditions. In comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparatively enhanced efficiency (with the reduced treatment time, i.e., 5 min vs. 30 min, all with 0.2 mol·$ L^{−1} $ NaOH at 65°C) in treating the deal-uminated Y zeolites for creating mesoporosity. For example, after the treatment of a dealuminated zeolite Y (using 0.1 mol·$ L^{−1} $ H4EDTA at 100°C for 6 h), the ultrasonic treatment produced the mesoporous zeolite Y with the specific external surface area (Sexternal) of 160 $ m^{2} $·g·−1and mesopore volume (Vmeso) of 0.22 $ cm^{3} $·$ g^{−1} $, being slightly higher than that by the conventional method (i.e., Sextemal= 128 $ m^{2} $·$ g^{−1} $ and Vmeso = 0.19 $ cm^{3} $·$ g^{−1} $). The acidic property and catalytic activity (in catalytic cracking of n-octane) of mesoporous Y zeolites obtained by the two methods were comparable. The ultrasonic desilication treatment was found to be generic, also being effective to treat the dealuminated Y zeolites by citric acid. Additionally, the first step of chemical dealumination treatment was crucial to enable the effective creation of mesopores in the parent Y zeolite (with a silicon-to-aluminium ratio, Si/Al = 2.6) regardless of the subsequent alkaline desilication treatment (i.e., ultrasonic or hydrothermal). Therefore, appropriate selection of the condition of the chemical dealumination treatment based on the property of parent zeolites, such as Si/Al ratio and crystallinity, is important for making mesoporous zeolites effectively. zeolite Y (dpeaa)DE-He213 mesoporous zeolite (dpeaa)DE-He213 post-synthesis treatment (dpeaa)DE-He213 ultrasound (dpeaa)DE-He213 chemical dealumination treatment (dpeaa)DE-He213 alkaline desilication treatment (dpeaa)DE-He213 Zhong, Peinan verfasserin aut Arandiyan, Hamidreza verfasserin aut Guan, Yanan verfasserin aut Liu, Jinmin verfasserin aut Wang, Na verfasserin aut Jiao, Yilai verfasserin aut Fan, Xiaolei verfasserin aut Enthalten in Frontiers of chemical engineering in China Beijing : Higher Education Press, 2007 14(2020), 2 vom: 21. Feb., Seite 275-287 (DE-627)545787602 (DE-600)2388862-3 1673-7474 nnns volume:14 year:2020 number:2 day:21 month:02 pages:275-287 https://dx.doi.org/10.1007/s11705-019-1905-1 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 14 2020 2 21 02 275-287
spelling	10.1007/s11705-019-1905-1 doi (DE-627)SPR039260941 (SPR)s11705-019-1905-1-e DE-627 ger DE-627 rakwb eng 540 ASE Zhang, Rongxin verfasserin aut Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mesoporous Y zeolites were prepared by the sequential chemical dealumination (using chelating agents such as ethylenediaminetetraacetic acid, $ H_{4} $EDTA, and citric acid aqueous solutions) and alkaline desilication (using sodium hydroxide, NaOH, aqueous solutions) treatments. Specifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed as the alternative to conventional alkaline treatments which are performed under hydrothermal conditions. In comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparatively enhanced efficiency (with the reduced treatment time, i.e., 5 min vs. 30 min, all with 0.2 mol·$ L^{−1} $ NaOH at 65°C) in treating the deal-uminated Y zeolites for creating mesoporosity. For example, after the treatment of a dealuminated zeolite Y (using 0.1 mol·$ L^{−1} $ H4EDTA at 100°C for 6 h), the ultrasonic treatment produced the mesoporous zeolite Y with the specific external surface area (Sexternal) of 160 $ m^{2} $·g·−1and mesopore volume (Vmeso) of 0.22 $ cm^{3} $·$ g^{−1} $, being slightly higher than that by the conventional method (i.e., Sextemal= 128 $ m^{2} $·$ g^{−1} $ and Vmeso = 0.19 $ cm^{3} $·$ g^{−1} $). The acidic property and catalytic activity (in catalytic cracking of n-octane) of mesoporous Y zeolites obtained by the two methods were comparable. The ultrasonic desilication treatment was found to be generic, also being effective to treat the dealuminated Y zeolites by citric acid. Additionally, the first step of chemical dealumination treatment was crucial to enable the effective creation of mesopores in the parent Y zeolite (with a silicon-to-aluminium ratio, Si/Al = 2.6) regardless of the subsequent alkaline desilication treatment (i.e., ultrasonic or hydrothermal). Therefore, appropriate selection of the condition of the chemical dealumination treatment based on the property of parent zeolites, such as Si/Al ratio and crystallinity, is important for making mesoporous zeolites effectively. zeolite Y (dpeaa)DE-He213 mesoporous zeolite (dpeaa)DE-He213 post-synthesis treatment (dpeaa)DE-He213 ultrasound (dpeaa)DE-He213 chemical dealumination treatment (dpeaa)DE-He213 alkaline desilication treatment (dpeaa)DE-He213 Zhong, Peinan verfasserin aut Arandiyan, Hamidreza verfasserin aut Guan, Yanan verfasserin aut Liu, Jinmin verfasserin aut Wang, Na verfasserin aut Jiao, Yilai verfasserin aut Fan, Xiaolei verfasserin aut Enthalten in Frontiers of chemical engineering in China Beijing : Higher Education Press, 2007 14(2020), 2 vom: 21. Feb., Seite 275-287 (DE-627)545787602 (DE-600)2388862-3 1673-7474 nnns volume:14 year:2020 number:2 day:21 month:02 pages:275-287 https://dx.doi.org/10.1007/s11705-019-1905-1 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 14 2020 2 21 02 275-287
allfields_unstemmed	10.1007/s11705-019-1905-1 doi (DE-627)SPR039260941 (SPR)s11705-019-1905-1-e DE-627 ger DE-627 rakwb eng 540 ASE Zhang, Rongxin verfasserin aut Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mesoporous Y zeolites were prepared by the sequential chemical dealumination (using chelating agents such as ethylenediaminetetraacetic acid, $ H_{4} $EDTA, and citric acid aqueous solutions) and alkaline desilication (using sodium hydroxide, NaOH, aqueous solutions) treatments. Specifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed as the alternative to conventional alkaline treatments which are performed under hydrothermal conditions. In comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparatively enhanced efficiency (with the reduced treatment time, i.e., 5 min vs. 30 min, all with 0.2 mol·$ L^{−1} $ NaOH at 65°C) in treating the deal-uminated Y zeolites for creating mesoporosity. For example, after the treatment of a dealuminated zeolite Y (using 0.1 mol·$ L^{−1} $ H4EDTA at 100°C for 6 h), the ultrasonic treatment produced the mesoporous zeolite Y with the specific external surface area (Sexternal) of 160 $ m^{2} $·g·−1and mesopore volume (Vmeso) of 0.22 $ cm^{3} $·$ g^{−1} $, being slightly higher than that by the conventional method (i.e., Sextemal= 128 $ m^{2} $·$ g^{−1} $ and Vmeso = 0.19 $ cm^{3} $·$ g^{−1} $). The acidic property and catalytic activity (in catalytic cracking of n-octane) of mesoporous Y zeolites obtained by the two methods were comparable. The ultrasonic desilication treatment was found to be generic, also being effective to treat the dealuminated Y zeolites by citric acid. Additionally, the first step of chemical dealumination treatment was crucial to enable the effective creation of mesopores in the parent Y zeolite (with a silicon-to-aluminium ratio, Si/Al = 2.6) regardless of the subsequent alkaline desilication treatment (i.e., ultrasonic or hydrothermal). Therefore, appropriate selection of the condition of the chemical dealumination treatment based on the property of parent zeolites, such as Si/Al ratio and crystallinity, is important for making mesoporous zeolites effectively. zeolite Y (dpeaa)DE-He213 mesoporous zeolite (dpeaa)DE-He213 post-synthesis treatment (dpeaa)DE-He213 ultrasound (dpeaa)DE-He213 chemical dealumination treatment (dpeaa)DE-He213 alkaline desilication treatment (dpeaa)DE-He213 Zhong, Peinan verfasserin aut Arandiyan, Hamidreza verfasserin aut Guan, Yanan verfasserin aut Liu, Jinmin verfasserin aut Wang, Na verfasserin aut Jiao, Yilai verfasserin aut Fan, Xiaolei verfasserin aut Enthalten in Frontiers of chemical engineering in China Beijing : Higher Education Press, 2007 14(2020), 2 vom: 21. Feb., Seite 275-287 (DE-627)545787602 (DE-600)2388862-3 1673-7474 nnns volume:14 year:2020 number:2 day:21 month:02 pages:275-287 https://dx.doi.org/10.1007/s11705-019-1905-1 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 14 2020 2 21 02 275-287
allfieldsGer	10.1007/s11705-019-1905-1 doi (DE-627)SPR039260941 (SPR)s11705-019-1905-1-e DE-627 ger DE-627 rakwb eng 540 ASE Zhang, Rongxin verfasserin aut Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mesoporous Y zeolites were prepared by the sequential chemical dealumination (using chelating agents such as ethylenediaminetetraacetic acid, $ H_{4} $EDTA, and citric acid aqueous solutions) and alkaline desilication (using sodium hydroxide, NaOH, aqueous solutions) treatments. Specifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed as the alternative to conventional alkaline treatments which are performed under hydrothermal conditions. In comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparatively enhanced efficiency (with the reduced treatment time, i.e., 5 min vs. 30 min, all with 0.2 mol·$ L^{−1} $ NaOH at 65°C) in treating the deal-uminated Y zeolites for creating mesoporosity. For example, after the treatment of a dealuminated zeolite Y (using 0.1 mol·$ L^{−1} $ H4EDTA at 100°C for 6 h), the ultrasonic treatment produced the mesoporous zeolite Y with the specific external surface area (Sexternal) of 160 $ m^{2} $·g·−1and mesopore volume (Vmeso) of 0.22 $ cm^{3} $·$ g^{−1} $, being slightly higher than that by the conventional method (i.e., Sextemal= 128 $ m^{2} $·$ g^{−1} $ and Vmeso = 0.19 $ cm^{3} $·$ g^{−1} $). The acidic property and catalytic activity (in catalytic cracking of n-octane) of mesoporous Y zeolites obtained by the two methods were comparable. The ultrasonic desilication treatment was found to be generic, also being effective to treat the dealuminated Y zeolites by citric acid. Additionally, the first step of chemical dealumination treatment was crucial to enable the effective creation of mesopores in the parent Y zeolite (with a silicon-to-aluminium ratio, Si/Al = 2.6) regardless of the subsequent alkaline desilication treatment (i.e., ultrasonic or hydrothermal). Therefore, appropriate selection of the condition of the chemical dealumination treatment based on the property of parent zeolites, such as Si/Al ratio and crystallinity, is important for making mesoporous zeolites effectively. zeolite Y (dpeaa)DE-He213 mesoporous zeolite (dpeaa)DE-He213 post-synthesis treatment (dpeaa)DE-He213 ultrasound (dpeaa)DE-He213 chemical dealumination treatment (dpeaa)DE-He213 alkaline desilication treatment (dpeaa)DE-He213 Zhong, Peinan verfasserin aut Arandiyan, Hamidreza verfasserin aut Guan, Yanan verfasserin aut Liu, Jinmin verfasserin aut Wang, Na verfasserin aut Jiao, Yilai verfasserin aut Fan, Xiaolei verfasserin aut Enthalten in Frontiers of chemical engineering in China Beijing : Higher Education Press, 2007 14(2020), 2 vom: 21. Feb., Seite 275-287 (DE-627)545787602 (DE-600)2388862-3 1673-7474 nnns volume:14 year:2020 number:2 day:21 month:02 pages:275-287 https://dx.doi.org/10.1007/s11705-019-1905-1 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 14 2020 2 21 02 275-287
allfieldsSound	10.1007/s11705-019-1905-1 doi (DE-627)SPR039260941 (SPR)s11705-019-1905-1-e DE-627 ger DE-627 rakwb eng 540 ASE Zhang, Rongxin verfasserin aut Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mesoporous Y zeolites were prepared by the sequential chemical dealumination (using chelating agents such as ethylenediaminetetraacetic acid, $ H_{4} $EDTA, and citric acid aqueous solutions) and alkaline desilication (using sodium hydroxide, NaOH, aqueous solutions) treatments. Specifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed as the alternative to conventional alkaline treatments which are performed under hydrothermal conditions. In comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparatively enhanced efficiency (with the reduced treatment time, i.e., 5 min vs. 30 min, all with 0.2 mol·$ L^{−1} $ NaOH at 65°C) in treating the deal-uminated Y zeolites for creating mesoporosity. For example, after the treatment of a dealuminated zeolite Y (using 0.1 mol·$ L^{−1} $ H4EDTA at 100°C for 6 h), the ultrasonic treatment produced the mesoporous zeolite Y with the specific external surface area (Sexternal) of 160 $ m^{2} $·g·−1and mesopore volume (Vmeso) of 0.22 $ cm^{3} $·$ g^{−1} $, being slightly higher than that by the conventional method (i.e., Sextemal= 128 $ m^{2} $·$ g^{−1} $ and Vmeso = 0.19 $ cm^{3} $·$ g^{−1} $). The acidic property and catalytic activity (in catalytic cracking of n-octane) of mesoporous Y zeolites obtained by the two methods were comparable. The ultrasonic desilication treatment was found to be generic, also being effective to treat the dealuminated Y zeolites by citric acid. Additionally, the first step of chemical dealumination treatment was crucial to enable the effective creation of mesopores in the parent Y zeolite (with a silicon-to-aluminium ratio, Si/Al = 2.6) regardless of the subsequent alkaline desilication treatment (i.e., ultrasonic or hydrothermal). Therefore, appropriate selection of the condition of the chemical dealumination treatment based on the property of parent zeolites, such as Si/Al ratio and crystallinity, is important for making mesoporous zeolites effectively. zeolite Y (dpeaa)DE-He213 mesoporous zeolite (dpeaa)DE-He213 post-synthesis treatment (dpeaa)DE-He213 ultrasound (dpeaa)DE-He213 chemical dealumination treatment (dpeaa)DE-He213 alkaline desilication treatment (dpeaa)DE-He213 Zhong, Peinan verfasserin aut Arandiyan, Hamidreza verfasserin aut Guan, Yanan verfasserin aut Liu, Jinmin verfasserin aut Wang, Na verfasserin aut Jiao, Yilai verfasserin aut Fan, Xiaolei verfasserin aut Enthalten in Frontiers of chemical engineering in China Beijing : Higher Education Press, 2007 14(2020), 2 vom: 21. Feb., Seite 275-287 (DE-627)545787602 (DE-600)2388862-3 1673-7474 nnns volume:14 year:2020 number:2 day:21 month:02 pages:275-287 https://dx.doi.org/10.1007/s11705-019-1905-1 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 14 2020 2 21 02 275-287
language	English
source	Enthalten in Frontiers of chemical engineering in China 14(2020), 2 vom: 21. Feb., Seite 275-287 volume:14 year:2020 number:2 day:21 month:02 pages:275-287
sourceStr	Enthalten in Frontiers of chemical engineering in China 14(2020), 2 vom: 21. Feb., Seite 275-287 volume:14 year:2020 number:2 day:21 month:02 pages:275-287
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topic_facet	zeolite Y mesoporous zeolite post-synthesis treatment ultrasound chemical dealumination treatment alkaline desilication treatment
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authorswithroles_txt_mv	Zhang, Rongxin @@aut@@ Zhong, Peinan @@aut@@ Arandiyan, Hamidreza @@aut@@ Guan, Yanan @@aut@@ Liu, Jinmin @@aut@@ Wang, Na @@aut@@ Jiao, Yilai @@aut@@ Fan, Xiaolei @@aut@@
publishDateDaySort_date	2020-02-21T00:00:00Z
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Specifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed as the alternative to conventional alkaline treatments which are performed under hydrothermal conditions. In comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparatively enhanced efficiency (with the reduced treatment time, i.e., 5 min vs. 30 min, all with 0.2 mol·$ L^{−1} $ NaOH at 65°C) in treating the deal-uminated Y zeolites for creating mesoporosity. For example, after the treatment of a dealuminated zeolite Y (using 0.1 mol·$ L^{−1} $ H4EDTA at 100°C for 6 h), the ultrasonic treatment produced the mesoporous zeolite Y with the specific external surface area (Sexternal) of 160 $ m^{2} $·g·−1and mesopore volume (Vmeso) of 0.22 $ cm^{3} $·$ g^{−1} $, being slightly higher than that by the conventional method (i.e., Sextemal= 128 $ m^{2} $·$ g^{−1} $ and Vmeso = 0.19 $ cm^{3} $·$ g^{−1} $). 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author	Zhang, Rongxin
spellingShingle	Zhang, Rongxin ddc 540 misc zeolite Y misc mesoporous zeolite misc post-synthesis treatment misc ultrasound misc chemical dealumination treatment misc alkaline desilication treatment Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites
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topic_title	540 ASE Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites zeolite Y (dpeaa)DE-He213 mesoporous zeolite (dpeaa)DE-He213 post-synthesis treatment (dpeaa)DE-He213 ultrasound (dpeaa)DE-He213 chemical dealumination treatment (dpeaa)DE-He213 alkaline desilication treatment (dpeaa)DE-He213
topic	ddc 540 misc zeolite Y misc mesoporous zeolite misc post-synthesis treatment misc ultrasound misc chemical dealumination treatment misc alkaline desilication treatment
topic_unstemmed	ddc 540 misc zeolite Y misc mesoporous zeolite misc post-synthesis treatment misc ultrasound misc chemical dealumination treatment misc alkaline desilication treatment
topic_browse	ddc 540 misc zeolite Y misc mesoporous zeolite misc post-synthesis treatment misc ultrasound misc chemical dealumination treatment misc alkaline desilication treatment
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title	Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites
ctrlnum	(DE-627)SPR039260941 (SPR)s11705-019-1905-1-e
title_full	Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites
author_sort	Zhang, Rongxin
journal	Frontiers of chemical engineering in China
journalStr	Frontiers of chemical engineering in China
lang_code	eng
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author_browse	Zhang, Rongxin Zhong, Peinan Arandiyan, Hamidreza Guan, Yanan Liu, Jinmin Wang, Na Jiao, Yilai Fan, Xiaolei
container_volume	14
class	540 ASE
format_se	Elektronische Aufsätze
author-letter	Zhang, Rongxin
doi_str_mv	10.1007/s11705-019-1905-1
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author2-role	verfasserin
title_sort	using ultrasound to improve the sequential post-synthesis modification method for making mesoporous y zeolites
title_auth	Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites
abstract	Abstract Mesoporous Y zeolites were prepared by the sequential chemical dealumination (using chelating agents such as ethylenediaminetetraacetic acid, $ H_{4} $EDTA, and citric acid aqueous solutions) and alkaline desilication (using sodium hydroxide, NaOH, aqueous solutions) treatments. Specifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed as the alternative to conventional alkaline treatments which are performed under hydrothermal conditions. In comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparatively enhanced efficiency (with the reduced treatment time, i.e., 5 min vs. 30 min, all with 0.2 mol·$ L^{−1} $ NaOH at 65°C) in treating the deal-uminated Y zeolites for creating mesoporosity. For example, after the treatment of a dealuminated zeolite Y (using 0.1 mol·$ L^{−1} $ H4EDTA at 100°C for 6 h), the ultrasonic treatment produced the mesoporous zeolite Y with the specific external surface area (Sexternal) of 160 $ m^{2} $·g·−1and mesopore volume (Vmeso) of 0.22 $ cm^{3} $·$ g^{−1} $, being slightly higher than that by the conventional method (i.e., Sextemal= 128 $ m^{2} $·$ g^{−1} $ and Vmeso = 0.19 $ cm^{3} $·$ g^{−1} $). The acidic property and catalytic activity (in catalytic cracking of n-octane) of mesoporous Y zeolites obtained by the two methods were comparable. The ultrasonic desilication treatment was found to be generic, also being effective to treat the dealuminated Y zeolites by citric acid. Additionally, the first step of chemical dealumination treatment was crucial to enable the effective creation of mesopores in the parent Y zeolite (with a silicon-to-aluminium ratio, Si/Al = 2.6) regardless of the subsequent alkaline desilication treatment (i.e., ultrasonic or hydrothermal). Therefore, appropriate selection of the condition of the chemical dealumination treatment based on the property of parent zeolites, such as Si/Al ratio and crystallinity, is important for making mesoporous zeolites effectively.
abstractGer	Abstract Mesoporous Y zeolites were prepared by the sequential chemical dealumination (using chelating agents such as ethylenediaminetetraacetic acid, $ H_{4} $EDTA, and citric acid aqueous solutions) and alkaline desilication (using sodium hydroxide, NaOH, aqueous solutions) treatments. Specifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed as the alternative to conventional alkaline treatments which are performed under hydrothermal conditions. In comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparatively enhanced efficiency (with the reduced treatment time, i.e., 5 min vs. 30 min, all with 0.2 mol·$ L^{−1} $ NaOH at 65°C) in treating the deal-uminated Y zeolites for creating mesoporosity. For example, after the treatment of a dealuminated zeolite Y (using 0.1 mol·$ L^{−1} $ H4EDTA at 100°C for 6 h), the ultrasonic treatment produced the mesoporous zeolite Y with the specific external surface area (Sexternal) of 160 $ m^{2} $·g·−1and mesopore volume (Vmeso) of 0.22 $ cm^{3} $·$ g^{−1} $, being slightly higher than that by the conventional method (i.e., Sextemal= 128 $ m^{2} $·$ g^{−1} $ and Vmeso = 0.19 $ cm^{3} $·$ g^{−1} $). The acidic property and catalytic activity (in catalytic cracking of n-octane) of mesoporous Y zeolites obtained by the two methods were comparable. The ultrasonic desilication treatment was found to be generic, also being effective to treat the dealuminated Y zeolites by citric acid. Additionally, the first step of chemical dealumination treatment was crucial to enable the effective creation of mesopores in the parent Y zeolite (with a silicon-to-aluminium ratio, Si/Al = 2.6) regardless of the subsequent alkaline desilication treatment (i.e., ultrasonic or hydrothermal). Therefore, appropriate selection of the condition of the chemical dealumination treatment based on the property of parent zeolites, such as Si/Al ratio and crystallinity, is important for making mesoporous zeolites effectively.
abstract_unstemmed	Abstract Mesoporous Y zeolites were prepared by the sequential chemical dealumination (using chelating agents such as ethylenediaminetetraacetic acid, $ H_{4} $EDTA, and citric acid aqueous solutions) and alkaline desilication (using sodium hydroxide, NaOH, aqueous solutions) treatments. Specifically, the ultrasound-assisted alkaline treatment (i.e., ultrasonic treatment) was proposed as the alternative to conventional alkaline treatments which are performed under hydrothermal conditions. In comparison with the hydrothermal alkaline treatment, the ultrasonic treatment showed the comparatively enhanced efficiency (with the reduced treatment time, i.e., 5 min vs. 30 min, all with 0.2 mol·$ L^{−1} $ NaOH at 65°C) in treating the deal-uminated Y zeolites for creating mesoporosity. For example, after the treatment of a dealuminated zeolite Y (using 0.1 mol·$ L^{−1} $ H4EDTA at 100°C for 6 h), the ultrasonic treatment produced the mesoporous zeolite Y with the specific external surface area (Sexternal) of 160 $ m^{2} $·g·−1and mesopore volume (Vmeso) of 0.22 $ cm^{3} $·$ g^{−1} $, being slightly higher than that by the conventional method (i.e., Sextemal= 128 $ m^{2} $·$ g^{−1} $ and Vmeso = 0.19 $ cm^{3} $·$ g^{−1} $). The acidic property and catalytic activity (in catalytic cracking of n-octane) of mesoporous Y zeolites obtained by the two methods were comparable. The ultrasonic desilication treatment was found to be generic, also being effective to treat the dealuminated Y zeolites by citric acid. Additionally, the first step of chemical dealumination treatment was crucial to enable the effective creation of mesopores in the parent Y zeolite (with a silicon-to-aluminium ratio, Si/Al = 2.6) regardless of the subsequent alkaline desilication treatment (i.e., ultrasonic or hydrothermal). Therefore, appropriate selection of the condition of the chemical dealumination treatment based on the property of parent zeolites, such as Si/Al ratio and crystallinity, is important for making mesoporous zeolites effectively.
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title_short	Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites
url	https://dx.doi.org/10.1007/s11705-019-1905-1
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author2	Zhong, Peinan Arandiyan, Hamidreza Guan, Yanan Liu, Jinmin Wang, Na Jiao, Yilai Fan, Xiaolei
author2Str	Zhong, Peinan Arandiyan, Hamidreza Guan, Yanan Liu, Jinmin Wang, Na Jiao, Yilai Fan, Xiaolei
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doi_str	10.1007/s11705-019-1905-1
up_date	2024-07-03T22:57:24.678Z
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