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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...

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Autores principales: 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
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
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.
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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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