光催化
氧化还原
分解水
热液循环
光催化分解水
载流子
材料科学
半反应
单斜晶系
光化学
催化作用
化学
化学工程
纳米技术
无机化学
光电子学
结晶学
晶体结构
有机化学
工程类
作者
Xiangjiu Guan,Li Tian,Yazhou Zhang,Jinwen Shi,Shaohua Shen
出处
期刊:Nano Research
[Springer Nature]
日期:2022-08-15
卷期号:16 (4): 4568-4573
被引量:11
标识
DOI:10.1007/s12274-022-4758-8
摘要
Surficial redox reactions play an essential role in photocatalytic water splitting, and are closely related to the surface properties of a specific photocatalyst. In this work, using monoclinic BiVO4 decahedral single crystals as a model photocatalyst, we report on the interrelationship between the photocatalytic activity and the surficial reaction sites for charge-carrier consumption. By controlled hydrothermal synthesis, the ratio of {010} to {110} facets on BiVO4, which respectively serve as reductive and oxidative sites, is carefully tailored. Our results show that superior photocatalytic water oxidation could be obtained on BiVO4 decahedrons with a medium ratio of reductive/oxidative sites and that efficient overall water splitting could be achieved via further modification of appropriate cocatalysts in Z-scheme system. The excellent photocatalytic performance is attributed to the accelerated selective redox reactions by realizing balanced charge-carrier consumption, which provides insightful guidance for prospering photocatalytic reactions in energy conversion.
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