还原电镀废水中Cr(Ⅵ)的光催化剂研究进展  

Research progress of photocatalysts for the reduction of Cr(VI)in electroplating wastewater

作　　者：蔡佳萍 阮慧渊 张燕辉 Cai Jiaping;Ruan Huiyuan;Zhang Yanhui(College of Chemistry and Chemical Engineering and Environment,Minnan Normal University,Zhangzhou 363000,China;Fujian Qiaonan Industrial Co.,Ltd.,Zhangzhou 363000,China)

机构地区：[1]闽南师范大学化学化工与环境学院,福建漳州363000 [2]福建桥南实业有限公司,福建漳州363000

出　　处：《电镀与精饰》2023年第10期59-67,共9页Plating & Finishing

基　　金：国家自然科学基金资助项目(21703094);福建省自然科学基金资助项目(2019J01743)。

摘　　要：Cr(Ⅵ)作为电镀废水中常见的重金属污染物,因毒性高、易迁移,因此严重危害环境和人体健康。光催化技术具有节能、高效、易操作、无二次污染等优点,被认为是一种极具应用前景的Cr(Ⅵ)还原技术。为了更好地理解和设计光催化剂催化还原Cr(Ⅵ)到Cr(Ⅲ),从而降低环境中存在的铬离子毒性,在此综述了光催化还原Cr(Ⅵ)到Cr(Ⅲ)的反应机理和光催化Cr(Ⅵ)催化剂的研究进展,并对今后还原去除电镀废水中Cr(Ⅵ)的发展提出了展望,以期为开发出高效率光催化还原Cr(Ⅵ)的催化剂研究提供参考。Cr(VI)is a common heavy metal contaminant in electroplating wastewater.Due to its high toxicity and easy migration,Cr(VI)seriously harms the environment and human health.Photocatalysis is considered as a promising Cr(VI)reduction technology due to its advantages of energy saving,high efficiency,easy operation and no secondary pollution.In order to better understand and design photocatalysts for catalytic reduction of Cr(VI)to Cr(III),so as to reduce the toxicity of chromium ions in the environment,the reaction mechanism of photocatalytic reduction of Cr(VI)to Cr(III)and the research progress of photocatalytic Cr(VI)catalysts are reviewed.The future development of Cr(VI)removal from electroplating wastewater is prospected,which is expected to provide reference for developing high efficiency photocatalytic catalyst for Cr(VI)reduction.

关 键 词：电镀废水Cr(VI)还原 光催化机理 氧化物催化剂 硫化物催化剂 

分 类 号：TQ110.9[化学工程—无机化工]