光催化
光电流
异质结
光电效应
化学
制氢
介孔材料
可见光谱
分解水
多孔性
催化作用
辐照
氢
材料科学
纳米技术
化学工程
光电子学
物理
有机化学
工程类
核物理学
作者
Xiao Li,Kuan Gao,Bingyan Mo,Jinlu Tang,Jie Wu,Hongwei Hou
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2021-01-21
卷期号:60 (3): 1352-1358
被引量:33
标识
DOI:10.1021/acs.inorgchem.0c02423
摘要
Herein, a surface site engineering strategy is used to construct a porous Z-scheme heterojunction photocatalyst for photocatalytic hydrogen evolution (PHE) by integration of BiOI in a mesoporous Zr-based metal–organic framework (MOF) NU-1000. Three high-quality and highly dispersed BiOI@NU-1000 heterojunction materials are synthesized, and a set of methods is used to characterize these materials, indicating that the BiOI@NU-1000 heterojunction can retain high porosity and crystallinity of the parent NU-1000. Furthermore, the built-in electric field of the BiOI@NU-1000 composite can effectively tune the band gap, promote the separation of photoinduced charge carriers, improve photocurrent intensity, and reduce photoelectric impedance. Under visible-light irradiation, BiOI@NU-1000-2 showed the best photocatalytic performance in the field of MOF-based photocatalysts for PHE, with a hydrogen production rate of up to 610 μmol h–1 g–1. This study will open up opportunities for the construction of Z-scheme photocatalysts based on the highly porous MOF materials to inspire the development of innovative photocatalysts.
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