铁电异质结光催化剂的研究进展  

Research progress in ferroelectric heterojunction photocatalyst

作　　者：黄瑞 蔡苇 刘小雪 王振华 高荣礼[2,3] 符春林 HUANG Rui;CAI Wei;LIU Xiaoxue;WANG Zhenhua;GAO Rongli;FU Chunlin(School of Chemistry and Chemical Engineering,Chongqing University of Science and Technology,Chongqing 401331,China;School of Metallurgy and Materials Engineering,Chongqing University of Science and Technology,Chongqing 401331,China;Chongqing Key Laboratory of Nano/Micro Composite Materials and Device,Chongqing 401331,China)

机构地区：[1]重庆科技学院化学化工学院,重庆401331 [2]重庆科技学院冶金与材料工程学院,重庆401331 [3]纳微复合材料与器件重庆市重点实验室,重庆401331

出　　处：《有色金属科学与工程》2022年第5期49-59,共11页Nonferrous Metals Science and Engineering

基　　金：重庆市高校创新研究群体项目(CXQT19031);重庆市科技创新领军人才支持计划(CSTCCXLJRC201919);重庆市自然科学基金面上项目(cstc2020jcyj-msxmX0030);生活垃圾资源化处理省部共建协同创新中心资助项目(shljzyh2021-19);重庆科技学院研究生科技创新计划项目(YKJCX2020504);重庆市研究生科技创新项目(CYS21496)。

摘　　要：半导体光催化材料在环境修复和可再生能源生产方面具有巨大的潜力,但光生电子—空穴的高复合率是制约半导体光催化材料性能提升的瓶颈问题。通过构筑铁电异质结,借助铁电材料的退极化场和异质结的内建电场增强光生电子—空穴的分离是提升光催化性能的重要途径。综述了近年来铁电异质结光催化剂的研究进展,重点介绍了铁电Ⅱ型异质结、铁电Z型异质结、铁电—金属肖特基结的光生电子和空穴的转移机制,提出了铁电异质结光催化剂未来研究面临的机遇和发展方向。Semiconductor photocatalytic materials have great potential in environmental remediation and renewable energy production,but the high recombination rate of photogenerated electron holes is the bottleneck restricting the performance improvement of semiconductor photocatalytic materials.It is an important way to improve the photocatalytic performance through constructing ferroelectric heterojunctions to enhance photogenerated electron-hole separation with the help of the depolarization field of ferroelectric material and the built-in electric field of heterojunction.In this paper,the research progress in ferroelectric heterojunction photocatalysts in recent years has been reviewed,and the transfer mechanisms of photogenerated electrons and holes of type-Ⅱferroelectric heterojunctions,Z-scheme gerroelectric heterojunctions and ferroelectric-metal Schottky junctions are emphatically illustrated.Finally,the opportunities and developing directions of the future research of ferroelectric heterojunction photocatalysts are proposed.

关 键 词：光催化 电子—空穴复合率 极化工程 异质结 铁电材料 

分 类 号：O643.36[理学—物理化学] TM221[理学—化学]