Enhanced Photocatalytic Properties of Silver Oxide Loaded Bismuth Vanadate  

钒酸铋负载氧化银增强光催化性能(英文)

作　　者：单连伟 米金波 董丽敏 韩志东 刘波 

机构地区：[1]Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province,College of Chemical and Environmental Engineering,Harbin University of Science and Technology [2]College of Material Science and Engineering,Harbin University of Science and Technology,Key Laboratory of Materials Research and Application of Heilongjiang Province

出　　处：《Chinese Journal of Chemical Engineering》2014年第8期909-913,共5页中国化学工程学报（英文版）

基　　金：Supported by the Education Department of Heilongjiang Province(12541111);the Program for Innovative Research Team in University of Heilongjiang Province(2013TD008);the Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province and Harbin University of Science and Technology and the Technology and Innovative Experimental Project of Harbin University of Science and Technology

摘　　要：In this work, BiV04 powders were synthesized by a sol-gel method, and the BiV04 gels with different calcination temperature were investigated by X-ray diffraction （XRD）. Absorption range and band gap energy, which are respon- sible for the observed photocatalyst behavior, were investigated by UV/vis diffuse reflectance spectroscopy （DRS） for pure and silver oxide loaded BiV04. Pbotocatalytic properties of the prepared samples were examined by studying the degradation of the methyl orange. When using NaCI02 as an electron acceptor, the possible photocatalytic mech- anism has been discussed by photocatalytic reactions. With the help of electron acceptor, the results show clearly that the BiV04 loaded silver oxide exhibited superior photocatalytic activity in simulated dye wastewater treatment.In this work,BiVO_4 powders were synthesized by a sol-gel method,and the BiVO_4 gels with different calcination temperature were investigated by X-ray diffraction(XRD).Absorption range and band gap energy,which are responsible for the observed photocatalyst behavior,were investigated by UV/vis diffuse reflectance spectroscopy(DRS) for pure and silver oxide loaded BiVO_4.Photocatalytic properties of the prepared samples were examined by studying the degradation of the methyl orange.When using NaClO_2 as an electron acceptor,the possible photocatalytic mechanism has been discussed by photocatalytic reactions.With the help of electron acceptor,the results show clearly that the BiVO_4 loaded silver oxide exhibited superior photocatalytic activity in simulated dye wastewater treatment.

关 键 词：Bismuth vanadate Photocatalytic properties Sol-gel method 

分 类 号：O643.32[理学—物理化学]