TiO_(2)/活性炭光催化剂降解乙黄药的综合实验设计  

Comprehensive experimental design of degradation of ethyl xanthate by TiO_(2)/activated carbon photocatalyst

作　　者：曹俊雅[1] 雷兴雨 刘猛 张莉昕 刘吉[3] 罗晨辉 CAO Junya;LEI Xingyu;LIU Meng;ZHANG Lixin;LIU Ji;LUO Chenhui(School of Chemistry and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China;College of Chemistry,Beijing Normal University,Beijing 100091,China;Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China)

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083 [2]北京师范大学化学学院,北京100091 [3]清华大学核能与新能源技术研究院,北京100084

出　　处：《实验技术与管理》2023年第9期23-28,共6页Experimental Technology and Management

基　　金：国家重点研发计划项目(2022YFC3701904);国家自然科学基金项目(41977029);中国矿业大学(北京)本科教育教学改革与研究项目重点项目(J22ZD08);教育部新工科研究与实践项目(E-KYDZCH20201801)。

摘　　要：光催化降解是一种非常生态友好的技术,为许多有机污染物降解的提供了新的处理途径。针对尾矿、尾矿废水有机药剂残留难以处理的瓶颈问题,设计了二氧化钛/活性炭光催化剂降解乙黄药的综合性实验,内容包括二氧化钛/活性炭光催化剂的制备和表征、乙黄药浓度的测定、光催化降解实验和复合光催化剂的回收利用。实验结果表明,活性炭可以很好地负载二氧化钛,二氧化钛/活性炭光催化剂的最佳煅烧温度为500℃,活性炭最佳掺杂比为20%。该实验涉及物理化学、材料化学、仪器分析等课程知识,有助于锻炼学生的实验操作能力、培养学生创造性思维。Photocatalytic degradation is a very eco-friendly technology,which provides a new way for the degradation of many organic pollutants.A comprehensive experiment on the degradation of ethyl xanthate by titanium dioxide/activated carbon photocatalyst is designed to address the bottleneck issue of organic pesticide residues in tailings and tailings wastewater that are difficult to treat,including preparation of titanium dioxide/activated carbon,determination of xanthate concentration,photocatalytic degradation experiment and recycling of composite photocatalyst.The experimental results show that activated carbon can load titanium dioxide well.The optimum calcination temperature of titanium dioxide/activated carbon photocatalyst is 500℃,and the optimum doping ratio of activated carbon is 20%.The teaching experiment involves physical chemistry,material chemistry,instrumental analysis and other curriculum knowledge,which is helpful to train students'experimental operation ability and cultivate their creative thinking.

关 键 词：尾矿废水 活性炭 二氧化钛 光催化 

分 类 号：TB33[一般工业技术—材料科学与工程] X52[环境科学与工程—环境工程]