Fe^(3+)-TiO_(2)@CGS复合材料光催化处理苯酚废水研究  

Study on photocatalytic treatment of phenol wastewater by Fe^(3+)-TiO_(2)@CGS composite

作　　者：李健[1,2] 朱菊芬 徐向平 王玉飞 闫龙[1,2] LI Jian;ZHU Ju-fen;XU Xiang-ping;WANG Yu-fei;YAN Long(College of Chemistry and Chemical Engineering,Yulin University,Yulin 719000,China;Shaanxi Province Key Laboratory of Low Metamorphic Coal Clean Utilization,Yulin 719000,China)

机构地区：[1]榆林学院化学与化工学院,陕西榆林719000 [2]陕西省低变质煤洁净利用重点实验室,陕西榆林719000

出　　处：《化学工程师》2022年第1期33-36,41,共5页Chemical Engineer

基　　金：国家自然科学基金项目(22168043);陕西省科技厅科研资助项目(2020SF-408,2020TD-031,2016KTZDGY08-04-01);陕西省教育厅科研计划项目(21JP148);榆林市科技局科学技术研究与开发项目(2019-102-3)。

摘　　要：以煤气化渣(CGS)为载体,采用溶胶凝胶法制备了Fe^(3+)掺杂改性的Fe^(3+)-TiO_(2)@CGS光催化剂复合材料,利用电子扫描显微镜、N_(2)物理吸附仪、热重分析仪等设备对复合材料进行了表征,并以苯酚废水为目标污染物,考察了该复合材料的光催化性能。实验结果表明,250mL浓度为300mg·L^(-1)苯酚溶液在光催化反应器进行处理,当Fe^(3+)-TiO_(2)@CGS复合材料投入量为1.5g、溶液pH值为7、光源功率为600W时,苯酚溶液COD的去除效果最明显,去除率达64.8%。Fe^(3+)-TiO_(2)@CGS photocatalyst composites were prepared by sol-gel method using coal gasification slag(CGS)as the carrier.The composites were characterized by scanning electron microscopy,N_(2) physical adsorption instrument and thermogravimetric analyzer.The photocatalytic performance of the composite was investigated by using phenol wastewater as the target pollutant.The experimental results showed that 250mL 300mg·L^(-1) phenol solution is treated in a photocatalytic reactor.When the dosage of Fe^(3+)-TiO_(2)@CGS composite is 1.5g,the solution pH value is 7,and the light source power is 600W,the COD removal effect of phenol solution is the most obvious,and the removal rate is 64.8%.

关 键 词：煤气化渣 Fe^(3+)-TiO_(2)@CGS复合材料 光催化法 废水降解 

分 类 号：TQ579[化学工程—精细化工]