硅藻土负载铁类芬顿体系催化降解碱性品红  

Catalytic degradation of basic fuchsin by iron-supported diatomite Fenton-like system

作　　者：侯少文 王欢[1] 王舒英 张强强 张快艇 HOU Shao-wen;WANG Huan;WANG Shu-ying;ZHANG Qiang-qiang;ZHANG Kuai-ting(School of Chemistry&Environmental Engineering,Liaoning University of Technology,Jinzhou 121001,China)

机构地区：[1]辽宁工业大学化学与环境工程学院,辽宁锦州121001

出　　处：《化学工程师》2020年第10期9-12,共4页Chemical Engineer

基　　金：辽宁工业大学2020年大学生创新创业训练计划项目资助(2020040);2019年辽宁省自然基金指导计划(2019-ZD-0688);2020年辽宁省博士科研启动基金计划项目(2020-BS-240);辽宁工业大学校人才启动基金(XV2020001)。

摘　　要：以硅藻土为载体,Fe(NO3)3·9H2O为Fe源,采用直接蒸发法制备了硅藻土负载铁催化剂,并与H2O2组成类芬顿体系降解碱性品红。探究了催化剂投加量、H2O2用量、溶液pH值、反应时间和温度对碱性品红催化降解效果的影响。实验结果表明,利用该类芬顿体系处理50mL浓度为15mmol·L^-1的碱性品红溶液时,在催化剂投加量为0.7g、H2O2用量为5mmol·L^-1、pH值为3、反应温度和时间为50℃和60min的适宜条件下,碱性品红的降解率可达98.3%。Iron-supported diatomite was prepared via direct evaporating method using diatomite as carrier and Fe(NO3)3·9H2O as Fe source.The basic fuchsin was degrades by Fenton-like system composed with iron-supported diatomite and H2O2.The effects of catalyst dosage,the amount of H2O2,solution pH,reaction time and temperature on the catalytic degradation of basic fuchsin were investigated.The results showed that the degradation rate of basic fuchsin could reach 98.3%under the conditions of 0.7g catalyst,5mmol H2O2 mmol·L^-1,pH 3,50℃reacting for 60min when 50mL basic fuchsin solution with a concentration of 15mmol·L^-1 treated by this Fenton-like system.

关 键 词：类芬顿 硅藻土 催化降解 碱性品红 

分 类 号：X788[环境科学与工程—环境工程]