摘要
将共沉淀法与溶胶-凝胶法相结合,制备Fe_(3)O_(4)-TiO_(2)复合材料,通过XRD、XPS、BET、TEM等测试技术对Fe_(3)O_(4)-TiO_(2)进行表征分析,以四环素为目标污染物,在Fe_(3)O_(4)含量、反应投加量以及反应初始pH等条件下,研究了Fe_(3)O_(4)-TiO_(2)光催化降解四环素的效果。结果表明,光催化降解60 mL浓度20 mg/L的四环素废水,Fe_(3)O_(4)-TiO_(2)的最优配比为m(Fe_(3)O_(4))∶m(TiO_(2))=2.5%,2.5%Fe_(3)O_(4)-TiO_(2)的最优投加量为60 mg,最优pH约为7,60 min降解四环素废水可达90%以上。
The Fe_(3)O_(4)-TiO_(2)photocatalysts were prepared by coprecipitation and sol-gel method,which were characterized and analysed by XRD,XPS,BET,TEM and other testing techniques.With tetracycline as target pollutants,the photocatalytic degradation of tetracycline was studied under different ratios of the Fe_(3)O_(4)-TiO_(2),dosage and initial pH.The results show that the photocatalytic degradation of tetracycline wastewater at the concentration of 20 mg/L at 60 mL,when m(Fe_(3)O_(4))∶m(TiO_(2))is 2.5%,the dosage is 60 mg,the Fe_(3)O_(4)-TiO_(2)can degrade over 90%tetracycline wastewater by 60 min and the best response pH is 7.
作者
韩琪
汪恂
朱雷
顾晓雪
刘显
HAN Qi;WANG Xun;ZHU Lei;GU Xiao-xue;LIU Xian(School of Urban Construction,Wuhan University of Science and Technology,Wuhan 430065,China)
出处
《应用化工》
CAS
CSCD
北大核心
2021年第12期3275-3279,共5页
Applied Chemical Industry
基金
国家自然科学基金面上项目(51672196)。
