改性BiVO4及其光降解水中有机污染物的研究进展  

Modified BiVO4 and its research progress in photodegradation of organic pollutants in water

作　　者：赵智敏 王奖[1] 萨嘎拉[1] 徐爱菊[1] ZHAO Zhi-min;WANG Jiang;SA Ga-la;XU Ai-ju(Inner Mongolia Key Laboratory of Green Catalysis,College of Chemistry and Environmental Science,Inner Mongolia Normal University,Hohhot 010022,China)

机构地区：[1]内蒙古师范大学化学与环境科学学院,内蒙古绿色催化重点实验室,内蒙古呼和浩特010022

出　　处：《应用化工》2021年第1期210-216,共7页Applied Chemical Industry

基　　金：内蒙古自治区水环境安全协同创新培育中心项目(XTCX003);内蒙古自治区高等学校科学研究项目(NJZY19024);内蒙古师范大学科研基金项目(ZRYB002)。

摘　　要：综述了BiVO4催化剂的结构和性质,以及提高其光催化降解有机污染物性能的方法。通过金属或非金属掺杂、结构和形貌改性、复合和负载等方法,可以调变BiVO4的结构和禁带宽度,增强电子的O2p→V3d(紫外光)或Bi6s(Bi6s/O2p)→V3d跃迁(可见光),并抑制e-/h+复合,以提高其光催化降解效率,并分析光催化降解的过程及机理。BiVO4催化剂稳定性好、无毒廉价、环境友好、制备方法简单,单斜白钨矿结构BiVO4具有较高的可见光活性,在光降解有机废水领域具有广泛的应用前景。This article reviews the structure and properties of BiVO4 catalysts,and methods to improve its photocatalytic degradation of organic pollutants.Through metal or non-metal doping,structure and morphology modification,compounding and loading methods,the structure and band gap of BiVO4 can be adjusted to enhance electronic O 2p→V 3d(ultraviolet light)or Bi 6s(Bi 6s/O 2p)→V 3d transition(visible light)and inhibit e-/h+recombination to improve its photocatalytic degradation efficiency,meanwhile,the process and mechanism of photocatalytic degradation have been analyzed.BiVO4 catalyst has good stability,non-toxic and cheap,environmentally friendly,simple preparation method,monoclinic scheelite structure BiVO4 has high visible light activity,and has a wide range of application prospect in the field of photodegradation of organic wastewater.

关 键 词：钒酸铋 有机污染物 光催化降解 复合改性 

分 类 号：TQ013[化学工程]