Patterning alternate TiO_(2) and Cu_(2)O strips on a conductive substrate as film photocatalyst for Z-scheme photocatalytic water splitting

作     者：Honglei Zhu Chao Zhen Xiangtao Chen Shun Feng Bo Li Yufei Du Gang Liu Hui-Ming Cheng 朱洪雷;甄超;陈祥涛;冯顺;李波;杜宇飞;刘岗;成会明

作者机构：Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and EngineeringUniversity of Science and Technology of ChinaShenyang 110016China School of Material Science&EngineeringNortheastern UniversityShenyang 110819China Institute of Technology for Carbon NeutralityShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China 

基　　金：the National Key Research and Development Program of China (2021YFA1500800) National Natural Science Foundation of China (51825204, 52072377, and 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) for the financial support 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2022年第67卷第23期

页      码：2420-2427,M0004页

摘      要：Semiconductor heterostructures mediated by electrical conductors are very promising for Z-scheme photocatalytic water *** contrast to conventional particulate heterostructures,alternate TiO_(2)and Cu_(2)O film stripes patterned parallel on a fluorine-doped tin oxide(FTO) conductive substrate was fabricated as a model film photocatalyst to study the characteristics of the photogenerated charge transfer *** Z-scheme transfer process with an effective transport distance of up to 5 μm occurs only in regions distant from the TiO_(2)/Cu_(2)O strip edges through the FTO substrate from the *** contrast,the transfer of charge around their contact regions follows the conventional transfer process through the TiO_(2)/Cu_(2)O strip *** results indicate that the Z-scheme transfer process occurring in such a large region dominates the charge transfer processes in the TiO_(2)/FTO/Cu_(2)O pattern film ***,unlike the single component film,which is inactive for photocatalytic overall water splitting,the modified TiO_(2)/Cu_(2)O pattern film can induce photocatalytic overall water splitting at a stoichiometric H_(2)/O_(2) ratio close to 2:*** findings have significant implications in designing efficient heterostructures by employing a Z-scheme charge transfer process.

主 题 词：Photocatalyst Pattern film Heterostructure Z-scheme Water splitting 

学科分类：081702[081702] 081705[081705] 07[理学] 070205[070205] 08[工学] 0817[工学-轻工类] 080501[080501] 080502[080502] 0805[工学-能源动力学] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1016/j.scib.2022.11.018

馆 藏 号：203115646...