室温下离子液体合成BiOX及其光催化性能研究  

Research on preparation of BiOX used ionic liquid at room temperature and their photocatalytic activity

作　　者：郭丽丽[1] 陈新华[2] 陈港 仝召见 赵梓良 赵春凤 Guo Lili;Chen Xinhua;Chen Gang;Tong Zhaojian;Zhao Ziliang;Zhao Chunfeng(College of Science,Xuchang University,Xuchang 461000;College of Chemical and Materials Engineering,Xuchang University,Xuchang 461000)

机构地区：[1]许昌学院数理学院,许昌461000 [2]许昌学院化工与材料学院,许昌461000

出　　处：《化工新型材料》2021年第5期190-194,共5页New Chemical Materials

基　　金：国家自然科学基金面上项目(21171143)。

摘　　要：以离子液体为卤源,以五水硝酸铋[Bi(NO_(3))_(3)·5H2O]为铋源,以水为溶剂,室温下合成BiOX。利用X射线衍射仪(XRD)、场发射扫描电子显微镜(FE-SEM)和紫外-可见吸收光谱(UV-Vis)等手段对得到的BiOX进行表征。最后以罗丹明B为模型污染物,考察BiOX在模拟太阳光照射下的光催化性能。结果表明:在20℃下恒温8h,用1-丁基-3-甲基咪唑溴盐[C_(4)mim]Br得到的BiOBr形貌为花状,属于四方晶系结构。BiOBr对罗丹明B的降解效果相当明显,模拟太阳光照射2h后,BiOBr对罗丹明B水溶液的光降解率达91.7%。Ionic liquids and Bi(NO_(3))_(3)·5H2O were used as raw materials in different solvents to preparate BiOX at room temperature.The prepared samples were analyzed by X ray powder diffraction,the field emission scanning electron microscopy and UV-Vis absorption spectra.The photocatalytic property of BiOX was investigated using rhodamine B aqueous solution.The results showed that the degradation effect of BiOBr prepared with[C_(4) mim]Br in water at 20℃for 8 h was obvious on rhodamine B.After 2 h,the photodegradation rate of BiOBr on rhodamine B was 91.71%.

关 键 词：BiOX 罗丹明B 光催化 离子液体 室温 

分 类 号：TQ132.35[化学工程—无机化工]