摘要
铜基硫化物禁带宽度窄,具有局域表面等离子体共振效应,对可见光有良好的吸收能力,且储量丰富、无毒,这些优势使铜基硫化物光催化剂引起了研究者们的广泛关注。然而,铜基硫化物光生电子和空穴复合速率高,可见光利用效率低,阻碍了其在光催化领域的应用,因此研究者们尝试了不同的改性策略提高其光催化性能。本文综述了铜基硫化物的改性策略,主要论述了形貌调控、晶相调控、半导体异质结等方式对铜基硫化物光催化性能的改性,分析了不同改性方法对铜基硫化物光催化性能提高的作用,以及铜基硫化物在光催化降解有机污染物、光解水产氢、光催化还原CO_(2)等方面的应用,并对铜基硫化物改性研究方向做出了展望。
Copper based sulfide photocatalysts have attracted extensive attention of researchers due to their narrow band gap,local surface plasmon resonance effect,good absorption ability to visible light,rich in reserves and non-toxic properties.However,the high recombination rate of photogenerated electrons and holes,and the low utilization efficiency of visible light hinder their application in the field of photocatalysis.Therefore,researchers have tried different modification strategies to improve their photocatalytic performance.This paper focuses on the modification strategies of copper based sulfides,mainly discusses the modification of the photocatalytic performance of copper based sulfides by morphology regulation,crystal phase regulation,and semiconductor heterojunction,etc.,and analyzes the effect of different modification methods on the improvement of the photocatalytic performance.The application of copper based sulfides in the photocatalytic degradation of organic pollutants,photocatalytic splitting water for hydrogen production,photocatalytic reduction of CO_(2),etc.are discussed,and the development direction of copper based sulfide modification is prospected.
作者
余海燕
梁海欧
白杰
李春萍
YU Haiyan;LIANG Haiou;BAI Jie;LI Chunping(Chemical Engineering College,Inner Mongolia University of Technology,Hohhot 010051,China;Chemistry College,Baotou Teachers’College,Baotou 014030,China)
出处
《人工晶体学报》
CAS
北大核心
2023年第3期394-404,共11页
Journal of Synthetic Crystals
基金
国家自然科学基金(21766022)。
关键词
铜基硫化物
光催化
降解
光生载流子
异质结
纳米复合材料
copper based sulfide
photocatalytic
degradation
photocarrier
heterojunction
nanocomposite
