高效磁性复合催化剂活化过一硫酸盐降解四环素  

Degradation of Tetracycline Via a Sulfate Activated by Highly Efficient Magnetic Composite Catalyst

作　　者：张旭航 姬跃国 席高阳 陈树勋 杨蕾 何争光[4] ZHANG Xuhang;JI Yueguo;XI Gaoyang;CHEN Shuxun;YANG Lei;HE Zhengguang(School of Water Resources Science and Engineering,Zhengzhou University;The Archttectural Design and Research Instttute of Henan Province Co.,Ltd;Zhengzhou Environmental Protection Research Institute;School of Ecology and Environment,Zhengzhou University:Zhengzhou 450000,China)

机构地区：[1]郑州大学水利科学与工程学院 [2]河南省建筑设计研究院有限公司 [3]郑州市环境保护科学研究所 [4]郑州大学生态与环境学院,河南郑州450000

出　　处：《水处理技术》2023年第1期31-36,共6页Technology of Water Treatment

基　　金：“十三五”国家科技重大专项水专项(2017ZX07602-001-002)。

摘　　要：采用共沉淀-焙烧法成功制备了新型催化剂CuFe_(2)O_(4)/B-400,有效改善了CuFe_(2)O_(4)的聚集性,对其进行了X射线衍射(XRD)、扫描电子显微镜(SEM)和能量-色散光谱(EDS)表征,并将其应用到了降解四环素废水的研究,考察了催化剂投加量、PMS投加量和pH对四环素降解率的影响。结果表明,当催化剂投加量为0.20 g/L,PMS投加量为0.40 g/L,pH=6时,四环素的降解率可达96.2%。淬灭实验与EPR分析表明,在该反应体系中,起主要作用的活性物质是·OH和SO_(4)^(-)·,同时存在1O2,说明CuFe_(2)O_(4)/B-400具有高效的催化作用。The CuFe_(2)O_(4)/B-400 catalyst was successfully prepared by coprecipitation-roasting method,which effectively improved the agglomeration of CuFe_(2)O_(4).The CuFe_(2)O_(4)catalyst was characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM)and energy-dispersive spectroscopy(EDS),and the catalyst was applied to the degradation of tetracycline wastewater.The effects of catalyst dosage,PMS dosage and pH on the degradation rate of tetracycline were investigated.The results showed that when the catalyst dosage was 0.20 g/L,the PMS dosage was 0.40g/L,the pH=6,the degradation rate of tetracycline could reach 96.2%.The quenching experiment and EPR analysis showed that the·OH and SO_(4)^(-)·were the main active substances in the reaction system,and the~1O2was existed at the same time,indicating that the CuFe_(2)O_(4)/B-400 had the high catalytic effect.

关 键 词：CuFe_(2)O_(4) 四环素 过一硫酸盐 自由基 

分 类 号：O646.36[理学—物理化学]