Patterning alternate TiO2 and Cu2O strips on a conductive substrate as film photocatalyst for Z-scheme photocatalytic water splitting

doi:10.1016/j.scib.2022.11.018

IMR OpenIR

	Patterning alternate TiO2 and Cu2O strips on a conductive substrate as film photocatalyst for Z-scheme photocatalytic water splitting
	Zhu, Honglei 1,2; Zhen, Chao 1; Chen, Xiangtao 1,3; Feng, Shun 1; Li, Bo 1,2; Du, Yufei 1,2; Liu, Gang 1,2; Cheng, Hui-Ming 1,4
通讯作者	Zhen, Chao(czhen@imr.ac.cn) ; Liu, Gang(gangliu@imr.ac.cn)
	2022-12-15
发表期刊	SCIENCE BULLETIN
ISSN	2095-9273
卷号	67 期号:23 页码:2420-2427
摘要	Semiconductor heterostructures mediated by electrical conductors are very promising for Z-scheme pho-tocatalytic water splitting. In contrast to conventional particulate heterostructures, alternate TiO2 and Cu2O film stripes patterned parallel on a fluorine-doped tin oxide (FTO) conductive substrate was fabri-cated as a model film photocatalyst to study the characteristics of the photogenerated charge transfer process. The Z-scheme transfer process with an effective transport distance of up to 5lm occurs only in regions distant from the TiO2/Cu2O strip edges through the FTO substrate from the bottom. In contrast, the transfer of charge around their contact regions follows the conventional transfer process through the TiO2/Cu2O strip interface. These results indicate that the Z-scheme transfer process occurring in such a large region dominates the charge transfer processes in the TiO2/FTO/Cu2O pattern film heterostructure. Importantly, unlike the single component film, which is inactive for photocatalytic overall water splitting, the modified TiO2/Cu2O pattern film can induce photocatalytic overall water splitting at a stoichiometric H2/O2 ratio close to 2:1. These findings have significant implications in designing efficient heterostruc-tures by employing a Z-scheme charge transfer process. (c) 2022 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
关键词	Photocatalyst Pattern film Heterostructure Z-scheme Water splitting
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; Natural Science Foundation of Liaoning Province
DOI	10.1016/j.scib.2022.11.018
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2021YFA1500800] ; National Natural Science Foundation of China[51825204] ; National Natural Science Foundation of China[52072377] ; National Natural Science Foundation of China[52188101] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2020192] ; International Partnership Program of the Chinese Academy of Sciences[174321KYSB20200005] ; Natural Science Foundation of Liaoning Province[2021 -MS -014]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000912381900001
出版者	ELSEVIER
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/175395
专题	中国科学院金属研究所
通讯作者	Zhen, Chao; Liu, Gang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 4.Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Honglei,Zhen, Chao,Chen, Xiangtao,et al. Patterning alternate TiO2 and Cu2O strips on a conductive substrate as film photocatalyst for Z-scheme photocatalytic water splitting[J]. SCIENCE BULLETIN,2022,67(23):2420-2427.
APA	Zhu, Honglei.,Zhen, Chao.,Chen, Xiangtao.,Feng, Shun.,Li, Bo.,...&Cheng, Hui-Ming.(2022).Patterning alternate TiO2 and Cu2O strips on a conductive substrate as film photocatalyst for Z-scheme photocatalytic water splitting.SCIENCE BULLETIN,67(23),2420-2427.
MLA	Zhu, Honglei,et al."Patterning alternate TiO2 and Cu2O strips on a conductive substrate as film photocatalyst for Z-scheme photocatalytic water splitting".SCIENCE BULLETIN 67.23(2022):2420-2427.