摘要
采用沸石负载纳米Fe3O4作为非均相催化剂,超声波辅助沸石负载纳米Fe3O4催化H2O2生成羟基自由基的方式氧化降解水中的四环素、及其活化过二硫酸盐催化氧化体系下对四环素的降解,研究超声功率、沸石负载纳米Fe3O4投加量、溶液PH等因子对反应的影响。结果表明:在优化参数条件为沸石负载纳米Fe3O4用量4.5g/L,四环素初始浓度0.24g/L,溶液PH为6.8,H2O2初始浓度60mmol/L或Na2S2O8初始浓度80mmol/L,超声波(100W)辅助催化1h,四环素降解率达到93%以上。
Nano Fe3O4 supported on Zeolite was used as heterogeneous catalyst, degradation of tetracycline in aqueous solution by hydroxyl radical formation from H2O2 catalyzed by nano-Fe3O4 loaded on zeolite assisted by ultrasonic wave and degradation of tetracycline in the system of catalytic oxidation by activated perbisulfate, the effects of ultrasonic power, nano-Fe3O4 loading on the reaction were investigated. The results show that under the optimum conditions, the amount of nano-Fe3O4 loaded on Zeolite is 4.5 g/L, the initial concentration of tetracycline is 0.24 G/L, the Ph of the solution is 6.8, the initial concentration of H2O2 is 60 MMOL/L or Na2S2O8 is 80 MMOL/L, and ultrasonic(100 W) assisted catalysis is 1 hour, the degradation rate of tetracycline was over 93%.
作者
冯逸
张贞勇
魏雯静
陈艳豪
王琴
FENG Yi;ZHANG Zhenyong;WEI Wenjing;CHEN Yanhao;WANG Qin(northwestern university for Nationalities,Chemical Engineering,Gansu,Lanzhou 730030)
出处
《化工管理》
2020年第9期21-23,共3页
Chemical Engineering Management
基金
中央高校本科生科研创新项目,编号:XBMUBYL19049。
关键词
沸石负载纳米Fe3O4
非均相
四环素
降解
Zeolite loaded nano-Fe3O4,
heterogeneous phase
tetracycline
degradation
