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Coproduction of hydrogen and lactic acid from glucose photocatalysis on band-engineered Zn(1-x)Cd(x)S homojunction
Photocatalytic transformation of biomass into value-added chemicals coupled with co-production of hydrogen provides an explicit route to trap sunlight into the chemical bonds. Here, we demonstrate a rational design of Zn(1-x)Cd(x)S solid solution homojunction photocatalyst with a pseudo-periodic cub...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7881236/ https://www.ncbi.nlm.nih.gov/pubmed/33615204 http://dx.doi.org/10.1016/j.isci.2021.102109 |
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author | Zhao, Heng Li, Chao-Fan Yong, Xue Kumar, Pawan Palma, Bruna Hu, Zhi-Yi Van Tendeloo, Gustaaf Siahrostami, Samira Larter, Stephen Zheng, Dewen Wang, Shanyu Chen, Zhangxin Kibria, Md Golam Hu, Jinguang |
author_facet | Zhao, Heng Li, Chao-Fan Yong, Xue Kumar, Pawan Palma, Bruna Hu, Zhi-Yi Van Tendeloo, Gustaaf Siahrostami, Samira Larter, Stephen Zheng, Dewen Wang, Shanyu Chen, Zhangxin Kibria, Md Golam Hu, Jinguang |
author_sort | Zhao, Heng |
collection | PubMed |
description | Photocatalytic transformation of biomass into value-added chemicals coupled with co-production of hydrogen provides an explicit route to trap sunlight into the chemical bonds. Here, we demonstrate a rational design of Zn(1-x)Cd(x)S solid solution homojunction photocatalyst with a pseudo-periodic cubic zinc blende (ZB) and hexagonal wurtzite (WZ) structure for efficient glucose conversion to simultaneously produce hydrogen and lactic acid. The optimized Zn(0.6)Cd(0.4)S catalyst consists of a twinning superlattice, has a tuned bandgap, and displays excellent efficiency with respect to hydrogen generation (690 ± 27.6 μmol·h(−1)·g(cat.)(−1)), glucose conversion (~90%), and lactic acid selectivity (~87%) without any co-catalyst under visible light irradiation. The periodic WZ/ZB phase in twinning superlattice facilitates better charge separation, while superoxide radical (⋅O(2)(-)) and photogenerated holes drive the glucose transformation and water oxidation reactions, respectively. This work demonstrates that rational photocatalyst design could realize an efficient and concomitant production of hydrogen and value-added chemicals from glucose photocatalysis. |
format | Online Article Text |
id | pubmed-7881236 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-78812362021-02-18 Coproduction of hydrogen and lactic acid from glucose photocatalysis on band-engineered Zn(1-x)Cd(x)S homojunction Zhao, Heng Li, Chao-Fan Yong, Xue Kumar, Pawan Palma, Bruna Hu, Zhi-Yi Van Tendeloo, Gustaaf Siahrostami, Samira Larter, Stephen Zheng, Dewen Wang, Shanyu Chen, Zhangxin Kibria, Md Golam Hu, Jinguang iScience Article Photocatalytic transformation of biomass into value-added chemicals coupled with co-production of hydrogen provides an explicit route to trap sunlight into the chemical bonds. Here, we demonstrate a rational design of Zn(1-x)Cd(x)S solid solution homojunction photocatalyst with a pseudo-periodic cubic zinc blende (ZB) and hexagonal wurtzite (WZ) structure for efficient glucose conversion to simultaneously produce hydrogen and lactic acid. The optimized Zn(0.6)Cd(0.4)S catalyst consists of a twinning superlattice, has a tuned bandgap, and displays excellent efficiency with respect to hydrogen generation (690 ± 27.6 μmol·h(−1)·g(cat.)(−1)), glucose conversion (~90%), and lactic acid selectivity (~87%) without any co-catalyst under visible light irradiation. The periodic WZ/ZB phase in twinning superlattice facilitates better charge separation, while superoxide radical (⋅O(2)(-)) and photogenerated holes drive the glucose transformation and water oxidation reactions, respectively. This work demonstrates that rational photocatalyst design could realize an efficient and concomitant production of hydrogen and value-added chemicals from glucose photocatalysis. Elsevier 2021-01-28 /pmc/articles/PMC7881236/ /pubmed/33615204 http://dx.doi.org/10.1016/j.isci.2021.102109 Text en © 2021 The Author(s) http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Zhao, Heng Li, Chao-Fan Yong, Xue Kumar, Pawan Palma, Bruna Hu, Zhi-Yi Van Tendeloo, Gustaaf Siahrostami, Samira Larter, Stephen Zheng, Dewen Wang, Shanyu Chen, Zhangxin Kibria, Md Golam Hu, Jinguang Coproduction of hydrogen and lactic acid from glucose photocatalysis on band-engineered Zn(1-x)Cd(x)S homojunction |
title | Coproduction of hydrogen and lactic acid from glucose photocatalysis on band-engineered Zn(1-x)Cd(x)S homojunction |
title_full | Coproduction of hydrogen and lactic acid from glucose photocatalysis on band-engineered Zn(1-x)Cd(x)S homojunction |
title_fullStr | Coproduction of hydrogen and lactic acid from glucose photocatalysis on band-engineered Zn(1-x)Cd(x)S homojunction |
title_full_unstemmed | Coproduction of hydrogen and lactic acid from glucose photocatalysis on band-engineered Zn(1-x)Cd(x)S homojunction |
title_short | Coproduction of hydrogen and lactic acid from glucose photocatalysis on band-engineered Zn(1-x)Cd(x)S homojunction |
title_sort | coproduction of hydrogen and lactic acid from glucose photocatalysis on band-engineered zn(1-x)cd(x)s homojunction |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7881236/ https://www.ncbi.nlm.nih.gov/pubmed/33615204 http://dx.doi.org/10.1016/j.isci.2021.102109 |
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