Bismuth-based Z-scheme photocatalytic systems for solar energy conversion

被引：45

作者：

Guo, Lina ^{[1
]}

Huang, Hongwei ^{[1
]}

Mei, Lefu ^{[1
]}

Li, Min ^{[2
]}

Zhang, Yihe ^{[1
]}

机构：

[1] China Univ Geosci, Sch Mat Sci & Technol, Natl Lab Mineral Mat, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Beijing 100083, Peoples R China

[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

MATERIALS CHEMISTRY FRONTIERS | 2021年 / 5卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Bismuth-based materials - Charge separations - Electronic configuration - Environmental friendliness - Environmental pollutions - Photocatalytic systems - Pollutant degradation - Reaction mechanism;

D O I：

10.1039/d0qm00895h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photocatalysis can effectively solve environmental pollution and energy supply problems by using inexhaustible sunlight. It is crucial to design high-efficiency photocatalysts with strong light-absorbing capability, strong redox potentials, high charge separation and excellent durability. Bismuth-based materials have unique crystal structures, electronic configurations and environmental friendliness. However, insufficient light absorption and charge separation greatly limit their application. Inspired by natural photosynthesis, the construction of artificial Z-scheme photocatalysts provides a feasible strategy to overcome these bottlenecks. This review mainly concentrates on the construction mechanism and structure genre of bismuth-based Z-scheme photocatalytic systems, including the liquid-phase Z-scheme photocatalytic system, all-solid-state Z-scheme photocatalytic system with a mediator, and direct Z-scheme photocatalytic system, and their applications in water splitting, CO2 reduction and pollutant degradation are summarized. The different reaction mechanisms in various applications are discussed in detail. Finally, challenges and opportunities are proposed to develop more efficient bismuth-based Z-scheme photocatalysts.

引用

页码：2484 / 2505

页数：22

共 137 条

[1] A new type of water splitting system composed of two different TiO2 photocatalysts (anatase, rutile) and a IO3-/I- shuttle redox mediator [J].