钴铝铁三元类水滑石复合物活化PMS降解盐酸四环素  

Degradation of tetracycline hydrochloride by PMS activated with cobalt-aluminium-iron ternary hydrotalcite-like compounds

作　　者：徐晨 黄愉 陆宣郦 唐雅琳 徐丁一 朱友莲 魏光涛[1] XU Chen;HUANG Yu;LU Xuanli;TANG Yalin;XU Dingyi;ZHU Youlian;WEI Guangtao(School of chemistry and chemical engineering,Guangxi University,Nanning Guangxi 530004)

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《天津化工》2023年第6期40-43,共4页Tianjin Chemical Industry

基　　金：广西自然科学基金项目(2021GXNSFAA075006);广西生物炼化重点实验室开放项目(GXKLB20-01);广西大学大学生创新创业训练计划项目(S202210593428)。

摘　　要：本文基于赤泥中的铁和铝组分,以赤泥为铁源与铝源,六水氯化钴为钴源,采用共沉淀法制备钴铝铁三元类水滑石材料(CoAlFe-LDHs),用于活化过硫酸氢钾复合盐(PMS)降解盐酸四环素(TC-HCl),考察了PMS投加量、CoAlFe-LDHs催化剂投加量、初始pH值及TC-HCl初始质量浓度对TC-HCl降解效果的影响。实验结果表明,在PMS物质的量浓度为0.75 mmol/L、CoAlFe-LDHs催化剂投加量为0.20 g/L、初始pH值为5.5、TC-HCl初始质量浓度为0.02 g/L的条件下,CoAlFe-LDHs对TC-HCl具有良好的降解效果,20min后TC-HCl的降解率可达97.6%。In this experiment,cobalt-aluminium-iron ternary hydrotalcite-like compound(CoAlFe-LDHs)was prepared by coprecipitation method with red mud(RM)as iron source and aluminum source,and cobalt chloride hexahydrate as cobalt source.CoAlFe-LDHs was used as an activator of peroxymonosulfate(PMS)to degrade tetracycline hydrochloride(TC-HCl).The influences of PMS dosage,CoAlFe-LDHs dosage,initial pH and initial TC-HCl concentration on the degradation of TC-HCl were investigated.The experimental results showed that when the PMS concentration was 0.75 mmol/L,the dosage of catalyst was 0.20 g/L,pH was 5.5 and the concentration of TC-HCl was 0.02 mg/L,CoAlFe-LDHs showed good degradation effect of TC-HCl,and the degradation ration of TC-HCl at 20 min was 97.6%.

关 键 词：钴铝铁三元类水滑石 过硫酸氢钾复合盐 盐酸四环素 

分 类 号：TQ042[化学工程]