摘要
以Bi(NO3)3·5H2O为铋源,KBr为溴源,在乙二醇中成功制得BiOBr微球。通过X射线衍射仪、扫描电子显微镜和紫外可见漫反射光谱对所制备产物进行了表征。结果表明,前驱体铋源和溴源用量影响了BiOBr的形貌尺寸和光吸收性质,进而影响了其对药物废水的光催化降解性能。其中铋源和溴源用量均为0.04mol/L时,制得的BiOBr微球可有效降解卡马西平、磺胺甲噁唑和双氯芬酸钠溶液,表明基于BiOBr的光催化技术可有效用于降解药物废水。
BiOBr microspheres were successfully prepared in ethylene glycol using Bi(NO3)3·5 H2O and KBr as bismuth source and bromine source,respectively.The as-prepared samples products were characterized by X-ray diffraction,scanning electron microscopy and ultraviolet-visible diffuse reflectance spectroscopy.Results showed that the amount of bismuth and bromine affected the morphology,size and light absorption properties of BiOBr,which further determined its photocatalytic degradation ability of pharmaceutical wastewater.Particularly,carbamazepine,sulfamethoxazole and diclofenac sodium solution could be effectively degraded by BiOBr microspheres prepared in 0.04 mol/L of Bi(NO3)3·5 H2O and KBr.Results indicated that the BiOBr based photocatalytic technology could be used to degrade pharmaceutical wastewater.
作者
高晓亚
郭倩
唐光贝
罗永明
何德东
GAO Xiaoya;GUO Qian;TANG Guangbei;LUO Yongming;HE Dedong(Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming Yunnan 650500)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2020年第2期139-142,共4页
Environmental Pollution & Control
基金
国家自然科学基金联合基金资助项目(No.U1402233)
昆明理工大学高层次人才平台建设资助项目(No.10978172)
关键词
BiOBr
光催化
降解
药物废水
BiOBr
photocatalysis
degradation
pharmaceutical wastewater
