人工晶体学报2017，Vol.46Issue(12)：2412-2416,5.
水热法合成ZnO/BiVO4复合光催化剂及其光催化性能
Hydrothermal Synthesis of ZnO/BiVO4 Composite Photocatalyst and Its Photocatalytic Activity
摘要
Abstract
ZnO/BiVO4 composite photocatalyst was prepared by hydrothermal method , and the influence of ZnO composite method ( directly adding or in-situ forming ) on the performance of ZnO/BiVO4 photocatalyst was studied .The crystal structure , morphology , specific surface area and optical absorption properties of the product were characterized using X-ray diffraction ( XRD ) , scanning electron microsocopy ( SEM) , BET and ultraviolet-visible spectrophotometer .The results show that the ZnO has effects on the phase composition and microstructure of the products , and new phases of V 2 O5 and Bi2 O3 are formed in the products , but the monoclinic BiVO 4 is still the main component .Comparing with the pure BiVO4 , the crystallinity and particle size of the composite become worse and smaller , but the photocatalytic activity of the product is improved . The photocatalytic performances of the samples prepared by direct composite method is improved greatly .The degradation rate of methylene blue is 90. 4％ when irradiated for 240 min by high-pressure mercury lamp .The degradation rate of the pure BiVO 4 to methylene blue is only 82 .2％under the same conditions .关键词
水热法/ZnO/BiVO4光催化剂/物相组成/微观结构/光催化性能Key words
hydrothermal method/ZnO/BiVO4 photocatalyst/phase composition/microstructure/photocatalytic performance分类
化学化工引用本文复制引用
刘欣,罗文静,李家科,蓝凤莎..水热法合成ZnO/BiVO4复合光催化剂及其光催化性能[J].人工晶体学报,2017,46(12):2412-2416,5.基金项目
江西省教育厅科学技术研究项目(GJJ160890,GJJ150928) （GJJ160890,GJJ150928）
江西省自然科学基金 (20161BAB206131) （20161BAB206131）
大学生创新创业训练计划项目 （）
