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MnO(x) dispersed on attapulgite derived Al-SBA-15: a promising catalyst for volatile organic compound combustion
To improve the catalytic activity when utilizing metal oxides for the combustion of VOCs, Mn/Al-SBA-15 catalysts have been successfully synthesized through an emerging wetness impregnation technique involving Mn(NO(3))(2) on Al-SBA-15, which has been directly prepared from attapulgite by a hydrother...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9048810/ https://www.ncbi.nlm.nih.gov/pubmed/35496129 http://dx.doi.org/10.1039/c9ra08157g |
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author | Meng, Jie Fang, Fan Feng, Nengjie Wan, Hui Guan, Guofeng |
author_facet | Meng, Jie Fang, Fan Feng, Nengjie Wan, Hui Guan, Guofeng |
author_sort | Meng, Jie |
collection | PubMed |
description | To improve the catalytic activity when utilizing metal oxides for the combustion of VOCs, Mn/Al-SBA-15 catalysts have been successfully synthesized through an emerging wetness impregnation technique involving Mn(NO(3))(2) on Al-SBA-15, which has been directly prepared from attapulgite by a hydrothermal method. Compared to Mn/SBA-15, which is prepared with TEOS as its silicon source, all the as-prepared Mn/Al-SBA-15 catalysts demonstrated enhanced catalytic performance in the oxidation of toluene. From this research, the 8% Mn/Al-SBA-15 catalyst presented the best catalytic performance, due to the high efficiency resulting from the high chemical valence of Mn(4+). When the concentration of toluene was 2000 ppm, and the space velocity was 60 000 mL (g h)(−1), 8% Mn/Al-SBA-15 could effectively reduce the T(50) and T(90) values of toluene to 201 and 278 °C, respectively; while the 8% Mn/SBA-15 catalyst could reduce the T(50) and T(90) values of toluene to 223 and 298 °C, respectively. A systematic investigation has been conducted to reveal the synergistic effects of Al doping and manganese loading on the enhanced catalytic performance. The experiments showed impressive results, demonstrating that Al doping can not only increase the surface acidity of SBA-15, but it can also be beneficial for achieving a uniform dispersion of MnO(x) on the surface and in the pores of Al-SBA-15, resulting in the enhancement of the catalytic performance. |
format | Online Article Text |
id | pubmed-9048810 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90488102022-04-28 MnO(x) dispersed on attapulgite derived Al-SBA-15: a promising catalyst for volatile organic compound combustion Meng, Jie Fang, Fan Feng, Nengjie Wan, Hui Guan, Guofeng RSC Adv Chemistry To improve the catalytic activity when utilizing metal oxides for the combustion of VOCs, Mn/Al-SBA-15 catalysts have been successfully synthesized through an emerging wetness impregnation technique involving Mn(NO(3))(2) on Al-SBA-15, which has been directly prepared from attapulgite by a hydrothermal method. Compared to Mn/SBA-15, which is prepared with TEOS as its silicon source, all the as-prepared Mn/Al-SBA-15 catalysts demonstrated enhanced catalytic performance in the oxidation of toluene. From this research, the 8% Mn/Al-SBA-15 catalyst presented the best catalytic performance, due to the high efficiency resulting from the high chemical valence of Mn(4+). When the concentration of toluene was 2000 ppm, and the space velocity was 60 000 mL (g h)(−1), 8% Mn/Al-SBA-15 could effectively reduce the T(50) and T(90) values of toluene to 201 and 278 °C, respectively; while the 8% Mn/SBA-15 catalyst could reduce the T(50) and T(90) values of toluene to 223 and 298 °C, respectively. A systematic investigation has been conducted to reveal the synergistic effects of Al doping and manganese loading on the enhanced catalytic performance. The experiments showed impressive results, demonstrating that Al doping can not only increase the surface acidity of SBA-15, but it can also be beneficial for achieving a uniform dispersion of MnO(x) on the surface and in the pores of Al-SBA-15, resulting in the enhancement of the catalytic performance. The Royal Society of Chemistry 2020-01-14 /pmc/articles/PMC9048810/ /pubmed/35496129 http://dx.doi.org/10.1039/c9ra08157g Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Meng, Jie Fang, Fan Feng, Nengjie Wan, Hui Guan, Guofeng MnO(x) dispersed on attapulgite derived Al-SBA-15: a promising catalyst for volatile organic compound combustion |
title | MnO(x) dispersed on attapulgite derived Al-SBA-15: a promising catalyst for volatile organic compound combustion |
title_full | MnO(x) dispersed on attapulgite derived Al-SBA-15: a promising catalyst for volatile organic compound combustion |
title_fullStr | MnO(x) dispersed on attapulgite derived Al-SBA-15: a promising catalyst for volatile organic compound combustion |
title_full_unstemmed | MnO(x) dispersed on attapulgite derived Al-SBA-15: a promising catalyst for volatile organic compound combustion |
title_short | MnO(x) dispersed on attapulgite derived Al-SBA-15: a promising catalyst for volatile organic compound combustion |
title_sort | mno(x) dispersed on attapulgite derived al-sba-15: a promising catalyst for volatile organic compound combustion |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9048810/ https://www.ncbi.nlm.nih.gov/pubmed/35496129 http://dx.doi.org/10.1039/c9ra08157g |
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