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Selective photocatalytic aerobic oxidation of methane into carbon monoxide over Ag/AgCl@SiO(2)
Design of active catalysts for chemical utilization of methane under mild conditions is of great importance, but remains a challenging task. Here, we prepared a Ag/AgCl with SiO(2) coating (Ag/AgCl@SiO(2)) photocatalyst for methane oxidation to carbon monoxide. High carbon monoxide production (2.3 μ...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9020177/ https://www.ncbi.nlm.nih.gov/pubmed/35656144 http://dx.doi.org/10.1039/d2sc01140a |
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author | Zhai, Jianxin Zhou, Baowen Wu, Haihong Jia, Shuaiqiang Chu, Mengen Han, Shitao Xia, Wei He, Mingyuan Han, Buxing |
author_facet | Zhai, Jianxin Zhou, Baowen Wu, Haihong Jia, Shuaiqiang Chu, Mengen Han, Shitao Xia, Wei He, Mingyuan Han, Buxing |
author_sort | Zhai, Jianxin |
collection | PubMed |
description | Design of active catalysts for chemical utilization of methane under mild conditions is of great importance, but remains a challenging task. Here, we prepared a Ag/AgCl with SiO(2) coating (Ag/AgCl@SiO(2)) photocatalyst for methane oxidation to carbon monoxide. High carbon monoxide production (2.3 μmol h(−1)) and high selectivity (73%) were achieved. SiO(2) plays a key role in the superior performance by increasing the lifetime of the photogenerated charge carriers. Based on a set of semi in situ infrared spectroscopy, electron paramagnetic resonance, and electronic property characterization studies, it is revealed that CH(4) is effectively and selectively oxidized to CO by the in situ formation of singlet (1)O(2)via the key intermediate of COOH*. Further study showed that the Ag/AgCl@SiO(2) catalyst could also drive valuable conversion using real sunlight under ambient conditions. As far we know, this is the first work on the application of SiO(2) modified Ag/AgCl in the methane oxidation reaction. |
format | Online Article Text |
id | pubmed-9020177 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90201772022-06-01 Selective photocatalytic aerobic oxidation of methane into carbon monoxide over Ag/AgCl@SiO(2) Zhai, Jianxin Zhou, Baowen Wu, Haihong Jia, Shuaiqiang Chu, Mengen Han, Shitao Xia, Wei He, Mingyuan Han, Buxing Chem Sci Chemistry Design of active catalysts for chemical utilization of methane under mild conditions is of great importance, but remains a challenging task. Here, we prepared a Ag/AgCl with SiO(2) coating (Ag/AgCl@SiO(2)) photocatalyst for methane oxidation to carbon monoxide. High carbon monoxide production (2.3 μmol h(−1)) and high selectivity (73%) were achieved. SiO(2) plays a key role in the superior performance by increasing the lifetime of the photogenerated charge carriers. Based on a set of semi in situ infrared spectroscopy, electron paramagnetic resonance, and electronic property characterization studies, it is revealed that CH(4) is effectively and selectively oxidized to CO by the in situ formation of singlet (1)O(2)via the key intermediate of COOH*. Further study showed that the Ag/AgCl@SiO(2) catalyst could also drive valuable conversion using real sunlight under ambient conditions. As far we know, this is the first work on the application of SiO(2) modified Ag/AgCl in the methane oxidation reaction. The Royal Society of Chemistry 2022-03-30 /pmc/articles/PMC9020177/ /pubmed/35656144 http://dx.doi.org/10.1039/d2sc01140a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Zhai, Jianxin Zhou, Baowen Wu, Haihong Jia, Shuaiqiang Chu, Mengen Han, Shitao Xia, Wei He, Mingyuan Han, Buxing Selective photocatalytic aerobic oxidation of methane into carbon monoxide over Ag/AgCl@SiO(2) |
title | Selective photocatalytic aerobic oxidation of methane into carbon monoxide over Ag/AgCl@SiO(2) |
title_full | Selective photocatalytic aerobic oxidation of methane into carbon monoxide over Ag/AgCl@SiO(2) |
title_fullStr | Selective photocatalytic aerobic oxidation of methane into carbon monoxide over Ag/AgCl@SiO(2) |
title_full_unstemmed | Selective photocatalytic aerobic oxidation of methane into carbon monoxide over Ag/AgCl@SiO(2) |
title_short | Selective photocatalytic aerobic oxidation of methane into carbon monoxide over Ag/AgCl@SiO(2) |
title_sort | selective photocatalytic aerobic oxidation of methane into carbon monoxide over ag/agcl@sio(2) |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9020177/ https://www.ncbi.nlm.nih.gov/pubmed/35656144 http://dx.doi.org/10.1039/d2sc01140a |
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