摘要
半导体异质结光催化剂因其在太阳能利用和转化方面广阔的应用前景而备受关注。合理构建两种或两种以上半导体材料的异质结构,可以集成多种组分的优点,改善光生电荷分离,扩大对可见光的吸收范围,保持光催化剂的高氧化还原能力。近年来,由于g-C_(3)N_(4)具有合成简单、稳定性高、独特的光学和电学特性等诸多优点,g-C_(3)N_(4)基异质结构的构建成为研究热点。本文针对近年来g-C_(3)N_(4)基异质结改性的研究现状,依据g-C_(3)N_(4)与其他半导体电荷转移路径的不同综述了三种异质结结构(g-C_(3)N_(4)基Ⅱ型异质结、g-C_(3)N_(4)基Z型异质结和g-C_(3)N_(4)基S型异质结),以及其在环境修复和能源方面的应用。最后对g-C_(3)N_(4)基异质结光催化剂存在的问题进行总结和展望。
Semiconductor heterojunction photocatalysts have attracted much attention because of their great application prospects in solar energy utilization and conversion.Rational construction of heterostructure with two or more semiconductor materials can combine the advantages of multi-components to simultaneously improve the photo-induced charges separation,expand the visible light absorption range,and maintain the high redox capacity of photocatalysts.Recently,constructing of g-C_(3)N_(4)-based heterostructure has become a hot research topic due to the multiple merits of g-C_(3)N_(4),such as facile synthesis,high stability,unique optical and electrical characteristics.This review focuses on the recent research on the modification of g-C_(3)N_(4)-based heterojunction photocatalysts and reviews three heterojunction structures(g-C_(3)N_(4)-based type-Ⅱheterojunction,g-C_(3)N_(4)-based Z-scheme heterojunction and g-C_(3)N_(4)-based type of S-scheme heterojunction)according to the different charge transfer paths of g-C_(3)N_(4) and other semiconductors,and their applications in environmental restoration and energy.Finally,the existing problems of g-C_(3)N_(4)-based heterojunction photocatalysts are summarized and prospected.
作者
杨思琪
郑永杰
张宏瑞
赵云鹏
田景芝
YANG Siqi;ZHENG Yongjie;ZHANG Hongrui;ZHAO Yunpeng;TIAN Jingzhi(School of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China;Qiqihar Inspection and Testing Center, Qiqihar 161005, China)
出处
《人工晶体学报》
CAS
北大核心
2022年第6期1110-1121,共12页
Journal of Synthetic Crystals
基金
黑龙江省省属高等学校基本科研业务费科研项目(135309109)
齐齐哈尔大学研究生创新科研项目(YJSCX2021013)。
