钨酸铋/TiO2/聚丙烯睛电纺纳米纤维膜的制备及性能研究  

Study on preparation and property of bismuth tungstate/TiO2/PAN electrospun nanofibre membrane

作　　者：李红章[1] 刘新华[2] 陶旭晨[2] 黄铭冰 Li Hongzhang;Liu Xinhua;Tao Xuchen;Huang Mingbing(Jiangmen Poly technic,J iangmen 529030;Anhui polytechnic University,Wuhu 241000)

机构地区：[1]江门职业技术学院,江门529030 [2]安徽工程大学,芜湖241000

出　　处：《化工新型材料》2019年第12期235-237,242,共4页New Chemical Materials

基　　金：安徽省自然科学基金面上项目（1808085ME145）;江门市科技计划项目（江财工〔2016〕143号）

摘　　要：钨酸铋可广泛应用于污染物的催化降解。然而,现今制备的钨酸铋存在回收困难和重复使用性能差的不足。采用静电纺丝法将TiO2引入钨酸铋体系制备了钨酸铋/TiO2/聚丙烯睛(PAN)电纺纳米纤维膜。氧化处理后的钨酸铋/TiO2/PAN电纺纳米纤维膜表现出良好的光催化活性。通过其对亚甲基蓝的光降解率评价所制纤维膜的光催化性能。结果表明:4.5h后,亚甲基蓝的光降解率达到95.15%,重复使用6次后,光降解率还能保持81.43%,说明其具有优秀的光催化性能和良好的可重复性。在污水处理中具有潜在的应用前景。Bismuth tungstate can be widely used in catalytic degradation of pollutants.However,the bismuth tungstate prepared today has difficult recycle and poor reusability.Bismuth tungstate/TiO2/PAN electrospun nanofiber membranes were prepared by electrospinning techniques and it shown well photocatalytic activity.The photocatalytic properties of the membranes were evaluated by its degradation rate of methylene blue.The results showed that the photocatalytic degradation rate of methylene blue reached 95.15%after 4.5h,and the photocatalytic degradation rate remained 81.43%after 6 times of reuse,which indicated that it had excellent photocatalyst Properties and good reproducibility.Thus,the membranes had potential application in sewage treatment.

关 键 词：钨酸铋 聚丙烯睛 光催化剂 可见光 水处理 

分 类 号：X703[环境科学与工程—环境工程] O643.36[理学—物理化学] O644.1[理学—化学]