MOFs材料可见光催化还原Cr(Ⅵ)的研究进展  

Research progress of visible light catalytic reduction towards Cr(Ⅵ)with MOFs

作　　者：李丹[1] 李庆[1] 吴志强 陈灵辉 朱炜 樊增禄[2] LI Dan;LI Qing;WU Zhiqiang;CHEN Linghui;ZHU Wei;FAN Zenglu(Xi′an Key Laboratory of Textile Chemical Engineering Auxiliaries,School of Environmental&Chemical Engineering,Xi′an Polytechnic University,Xi′an 710048,China;Key Laboratory of Functional Textile Materials and Products,Ministry of Education,Xi′an Polytechnic University,Xi′an 710048,China)

机构地区：[1]西安工程大学西安市纺织化工助剂重点实验室,环境与化学工程学院,陕西西安710048 [2]西安工程大学功能性纺织材料及制品教育部重点实验室,陕西西安710048

出　　处：《印染》2022年第2期73-79,共7页China Dyeing and Finishing

基　　金：国家自然科学基金面上项目(22078253);陕西省教育厅服务地方专项项目(19JC016);西安市科技计划项目(2019217114GXRC007CG008-GXYD7.1);西安市碑林区科技计划项目(GX2003)。

摘　　要：金属-有机骨架(MOFs)是由金属离子与有机配体配位构筑的新型结晶性多孔材料,有机-无机杂化及多孔特性赋予MOFs半导体特征和可修饰性。综述了MOFs及其复合材料可见光催化还原印染废水中常见六价铬Cr(Ⅵ)的研究进展,以及提升其性能的后修饰策略。特别是通过引入发色基团、掺杂光敏剂及构建异质结等,提升MOFs可见光催化能力的方法。分析了其光催化还原Cr(Ⅵ)的反应机理和其他因素对光催化性能的影响。总结了提升MOFs可循环使用性能的手段,并对该领域未来的发展趋势进行了展望。Metal-organic frameworks(MOFs) are novel crystalline porous materials constructed by the coordination of metal ions and organic ligands. The organic-inorganic hybrid and porous features endow MOFs with semiconductor characteristics and tunable properties. The research progress of MOFs and their composites in visible light catalytic reduction towards common hexavalent chromium Cr(Ⅵ) in dyeing wastewater, as well as post-modification strategies to improve their performances are reviewed. In particular, the visible light catalytic ability of MOFs can be improved by introducing chromophore groups, doping photosensitizer and constructing heterojunction. The mechanisms of photocatalytic reduction towards Cr(Ⅵ) and the influences of other factors on the photocatalytic performances are analyzed. The methods to improve the recyclable performances of MOFs have been summarized. And the future development trends in this field have been forecasted.

关 键 词：光催化还原 金属-有机骨架材料 六价铬 可见光 

分 类 号：TS199[轻工技术与工程—纺织化学与染整工程]