高等学校化学学报2018，Vol.39Issue(5)：996-1002,7.DOI:10.7503/cjcu20170601
Bi2WO6/TiO2纳米复合材料对乙烯的光催化降解
Synthesis of Bi2WO6/TiO2Nanocomposites for the Photocatalytic Degradation of Ethylene
摘要
Abstract
Bi2WO6/TiO2nanocomposites were synthesized via solvent thermal method and characterized using X-ray powder diffractometer(XRD), scanning electron microscope(SEM), transmission electron microscope (TEM)and Fourier transform infared spectrometer(FTIR). The results show that TiO2nanoparticles can be attached to the surface of Bi2WO6through the interaction of surface groups, thus leading to the hetergeneous structure. Moreover,the Bi2WO6/TiO2nanocomposites have smaller grain size and higher specific surface area compared with single Bi2WO6nanoparticles, which can be contributed to the reinforcement of photocatalytic activity under visible light irradiation. Experiments on degradation of ethylene indicated that Bi2WO6/TiO2 composites exhibited excellent photocatalytic performance under both simulated solar light irradiation and visible light irradiation. The rate constant K′ of Bi2WO6/TiO2could reach up to 9.312×10ˉ4minˉ1under visible light irradiation, which increased by 89.34% and 884.25% compared with sole Bi2WO6and TiO2, respectively.关键词
纳米复合材料/Bi2WO6/TiO2/乙烯/可见光催化Key words
Nanocomposite/Bi2WO6/TiO2/Ethylene/Visible-light-induced photocatalysis分类
化学化工引用本文复制引用
王海丹,王丽,徐梅,黄丽晨,宋贤良..Bi2WO6/TiO2纳米复合材料对乙烯的光催化降解[J].高等学校化学学报,2018,39(5):996-1002,7.基金项目
国家自然科学基金(批准号:31371855)、广东省现代农业产业共性技术创新团队项目(批准号:2016LM2154)和广州市科技计划项目(批准号:2014J4100150)资助. Supported by the National Natural Science Foundation of China(No.31371855),the Team Project of Modern Agricultural Generic Techono-logy Innovation of Guangdong Province, China(No.016LM2154)and the Science and Technological Project of Guangzhou City, China(No. 2014J4100150). （批准号:31371855）
