基于光(电)催化氧化技术的化学需氧量测定研究进展  

Recent advances in determination of chemical oxygen demand based on photocatalytic oxidation and photoelectrocatalytic oxidation

作　　者：蒋成影 孙西艳 付龙文 赵荣芳 陈令新[2] Chengying Jiang;Xiyan Sun;Longwen Fu;Rongfang Zhao;Lingxin Chen(Muping Coastal Environmental Research Station,Yantai Institute of Coastal Zone Research,Chinese Academy of Sciences,Yantai 264003,China;CAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation,Yantai Institute of Coastal Zone Research,Chinese Academy of Sciences,Yantai 264003,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院牟平海岸带环境综合试验站,中国科学院烟台海岸带研究所,烟台264003 [2]中国科学院海岸带环境过程与生态修复重点实验室,中国科学院烟台海岸带研究所,烟台264003 [3]中国科学院大学,北京100049

出　　处：《中国科学：化学》2023年第9期1660-1671,共12页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金(编号:42106055);“美丽中国”生态文明科技工程专项(编号:XDA23050102);国家重点研发计划(编号:2021YFD190090201);黄三角国家农高区科技专项(编号:2022SZX01)资助项目。

摘　　要：化学需氧量(COD)是以化学方法测量水样中需要被氧化的还原性物质的量,是一项反映水体环境有机物污染的综合评价指标.传统的高温高压消解COD的方法存在分析时间长、操作过程繁琐、操作安全性差等缺点.近年来,人们逐渐将目光聚集到消解方法的改进上,其中,光(电)催化氧化法被认定为最有发展前景的有机物氧化技术,在水环境分析领域显示出了极大的优越性.本文综述了光催化氧化技术和光电催化氧化技术在COD测定中的应用,主要介绍了光(电)催化氧化技术测定COD的机理及研究进展,并展望了光(电)催化氧化技术在COD测定领域未来的研究重点和发展趋势.Chemical oxygen demand(COD)is a chemical measurement to measure the amount of reducing substances that need to be oxidized in water samples,and it is a comprehensive evaluation indicator to reflect the environmental organic pollution of water bodies.The traditional high-temperature and high-pressure COD digestion method has some disadvantages,such as long analysis time,tedious operation process and poor operation safety.In recent years,researchers have gradually focused on the improvement of digestion methods.Among them,photocatalytic(photoelectrocatalytic)oxidation has been identified as the most promising organic oxidation technology,which has shown great superiority in the field of water analysis.This paper reviews the application of photocatalytic oxidation technology and photoelectrocatalytic oxidation technology in COD determination,mainly introduces the mechanism and research progress of photocatalytic(photoelectrocatalytic)oxidation technology in COD determination,and looks forward to the future research focus and development trend of photocatalytic(photoelectrocatalytic)oxidation technology in the field of COD determination.

关 键 词：化学需氧量 光催化氧化 光电催化氧化 半导体 

分 类 号：X832[环境科学与工程—环境工程] O643.36[理学—物理化学] O644.1[理学—化学]