四川理工学院学报（自然科学版）2018，Vol.31Issue(3)：16-20,5.DOI:10.11863/j.suse.2018.03.03
几种离子液体辅助合成BiOBr的表征及可见光催化性能
Characterization and Visible Light-driven Photocatalytic Activity of BiOBr Prepared with the Assistance of Ionic Liquids
摘要
Abstract
With the assistance of a series of ionic liquids,BiOBr photocatalysts were successfully prepared via a facile hydrothermal method.x-ray diffraction (xRD),surface photovoltage spectroscopy (SPS),UV-Vis diffuse reflectance spec-tra (UV-Vis DRS),scanning electron microscopy (SEM)and Brunauer-Emmett-Teller (BET)method were applied to char-acterize the crystal structure,morphology,optical properties and separation rate of photoinduced electron-hole charge pairs of BiOBr photocatalysts.RhB was used as model pollutant to evaluate the photocatalytic performance of the samples.The results reveal that all the BiOBr photocatalysts prepared with the assistance of ionic liquids display better photocatalytic performance than the reference BiOBr,and 1-Ethyl-3-methylimidazolium hexafluorophosphate ([EMIm]PF6)exerts the greatest influence on the enhancement of photocatalytic performance of BiOBr.The enhanced photocatalytic performance of BiOBr prepared with the assistance of ionic liquids can be ascribed to the significantly boosted separation efficiency of the photoinduced carriers.关键词
离子液体/可见光催化/BiOBr/表征Key words
ionic liquid/visible-light driven photocatalysis/BiOBr/characterization分类
化学化工引用本文复制引用
杨琪,刘欢欢,钟俊波,杨磊,李建章..几种离子液体辅助合成BiOBr的表征及可见光催化性能[J].四川理工学院学报（自然科学版）,2018,31(3):16-20,5.基金项目
四川省科技厅项目(2015JY0081) （2015JY0081）
