气候变化领域集成服务门户(CCPortal): Highly efficient photosynthesis of hydrogen peroxide in ambient conditions

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DOI	10.1073/pnas.2103964118
	Highly efficient photosynthesis of hydrogen peroxide in ambient conditions
	Ye Y.-X.; Pan J.; Xie F.; Gong L.; Huang S.; Ke Z.; Zhu F.; Xu J.; Ouyang G.
发表日期	2021
ISSN	00278424
卷号	118 期号:16
英文摘要	Photosynthesis of hydrogen peroxide (H2O2) in ambient conditions remains neither cost effective nor environmentally friendly enough because of the rapid charge recombination. Here, a photocatalytic rate of as high as 114 μmol·g−1·h−1 for the production of H2O2 in pure water and open air is achieved by using a Z-scheme heterojunction, which outperforms almost all reported photocatalysts under the same conditions. An extensive study at the atomic level demonstrates that Z-scheme electron transfer is realized by improving the photoresponse of the oxidation semiconductor under visible light, when the difference between the Fermi levels of the two constituent semiconductors is not sufficiently large. Moreover, it is verified that a type II electron transfer pathway can be converted to the desired Z-scheme pathway by tuning the excitation wavelengths. This study demonstrates a feasible strategy for developing efficient Z-scheme photocatalysts by regulating photoresponses. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Environmental chemistry; Graphite carbon nitride; Hydrogen peroxide; Photocatalysis; Z-scheme heterojunctions
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179801
作者单位	Ministry of Education (MOE) Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China; Instrumental Analysis and Research Center, Sun Yat-sen University, Guangzhou, 510275, China; Department of Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510275, China; School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Guangdong Institute of Analysis (China National Analytical Center Guangzhou), Guangzhou, 510070, China; Chemistry College, Center of Advanced Analysis and Gene Sequencing, Zhengzhou University, Zhengzhou, 450001, China
推荐引用方式 GB/T 7714	Ye Y.-X.,Pan J.,Xie F.,et al. Highly efficient photosynthesis of hydrogen peroxide in ambient conditions[J],2021,118(16).
APA	Ye Y.-X..,Pan J..,Xie F..,Gong L..,Huang S..,...&Ouyang G..(2021).Highly efficient photosynthesis of hydrogen peroxide in ambient conditions.Proceedings of the National Academy of Sciences of the United States of America,118(16).
MLA	Ye Y.-X.,et al."Highly efficient photosynthesis of hydrogen peroxide in ambient conditions".Proceedings of the National Academy of Sciences of the United States of America 118.16(2021).