铋系光电催化剂降解水中有机污染物的研究进展  

Progress on degradation of organic pollutants in water by bismuth-based photoelectrocatalysts

作　　者：李碧秋 李希成 熊俊夫 李金韩 贾博雅 汪长征[1] LI Biqiu;LI Xicheng;XIONG Junfu;LI Jinhan;JIA Boya;WANG Changzheng(Key Laboratory of Urban Storm Water System and Water Environment,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Beijing Water Supply Management Center,Beijing 100195,China;Bureau of Natural Resources and Planning of Chengde,Chengde 067000,Hebei,China)

机构地区：[1]北京建筑大学城市雨水系统与水环境教育部重点实验室,北京100044 [2]北京市供水管理事务中心,北京100195 [3]河北省承德市自然资源和规划局,河北承德067000

出　　处：《材料工程》2024年第6期92-108,共17页Journal of Materials Engineering

基　　金：水体污染控制与治理国家科技重大专项(2018ZX07110-008);北京建筑大学基本科研业务费项目(X18005);北京建筑大学博士研究生科研能力提升项目(DG2023012);北京建筑大学硕士研究生创新项目(PG2023076)。

摘　　要：光电催化技术通过电场协助光催化,能有效抑制光生载流子复合,提高有机污染物的去除率,具有简便、高效、易操作等优点。光电极材料是光电催化技术的关键,相较于其他传统催化剂,铋系半导体具有独特的层状结构和适宜的禁带宽度,对光的利用率更高。层状结构使铋系材料能在层内诱导内部电场,促进光生电子和空穴分离,加速载流子转移,提升光催化性能。本文介绍了一元铋系化合物、二元铋系化合物、卤氧化铋系化合物和含氧酸型铋系化合物的制备、表征及性能,简述了铋系材料作为光电极材料的优势。综述了其对有机污染物降解的研究,对铋系材料应用于光电催化进行废水处理进行了总结,新型催化剂的开发和如何推进建立催化剂全生命周期内对环境产生的影响评价体系是后续研究的重点方向。Photoelectrocatalytic technology,which assists photocatalysis through an electric field,can effectively inhibit the recombination of photogenerated carriers and improve the removal rate of organic pollutants,exhibiting advantages of simplicity,efficiency,and ease of operation.Photoelectrode material is the key to photoelectrocatalytic technology.Compared with other traditional catalysts,bismuth-based semiconductors have a higher utilization rate of light due to their unique layered structure and suitable forbidden band width.The layered structure of the bismuth-based materials can induce an internal electric field in the layer,promote the separation of photogenerated electrons and holes,accelerate the transfer of carriers,and improve the photocatalytic performance.The preparation,characterization and performance of unary bismuth compounds,bismuth binary oxides compounds,bismuth oxyhalide compounds and oxyacid bismuth compounds were introduced,and the advantages of bismuth-based materials as photoelectrode materials were briefly described.The research on its degradation of organic pollutants was reviewed,the application of bismuth-based materials to photoelectrocatalysis for wastewater treatment was summarized.The development of new catalysts and how to promote the establishment of and evaluation system for the impact on the environment during the whole life cycle of catalysts were the key directions for subsequent research.

关 键 词：光电催化 铋系材料 废水处理 复合电极 

分 类 号：X703[环境科学与工程—环境工程] TB34[一般工业技术—材料科学与工程]