Cu2O掺杂TiO2光催化降解亚甲基蓝的研究  

Photocatalytic degradation of methylene blue by Cu2O doping TiO2

作　　者：李卓豪 陈秀婷 李俊航 廖丽霞[1,2] 方涛 李斌[1] LI Zhuo-hao;CHEN Xiu-ting;LI Jun-hang;LIAO Li-xia;FANG Tao;LI Bin(College of Chemistry,Chemical Engineering and Resource Utilization,Northeast Forestry University,Harbin 150040,China;Davidson School of Chemical Engineering,Purdue University,West Lafayette,IN 47907,USA)

机构地区：[1]东北林业大学化学化工与资源利用学院,黑龙江哈尔滨150040 [2]普渡大学戴维森化工学院,印第安纳州西拉法叶47907

出　　处：《应用化工》2020年第12期3039-3042,共4页Applied Chemical Industry

基　　金：中央高校基本科研业务费项目(2572015CB23);中国博士后科研项目(2014M561312);黑龙江省博士后科研项目(LBH-Z14014);哈尔滨市科技局科研项目(2015RQQXJ063);东北林业大学大学生创新实验项目(201810225104)。

摘　　要：以钛酸四丁酯和乙酸铜为原料,柠檬酸和葡萄糖作还原剂,采用水解法制备了Cu2O/TiO2复合光催化剂,并通过XRD和SEM表征手段进行了表征。以Cu2O/TiO2为光催化剂,考察了反应时间、初始浓度、催化剂用量、起始pH和温度等因素对光催化降解亚甲基蓝脱色率的影响。结果表明,在高压汞灯照射下,以0.01 g Cu2O/TiO2为光催化剂,以100 mL 10 mg/L亚甲基蓝溶液为模拟废水,pH为7.0,25℃下光催化反应60 min,亚甲基蓝脱色率可以达到94.38%,其脱色动力学反应为准一级过程。Cu2O/TiO2 composite photocatalyst was prepared by hydrolysis method using tetrabutyl titanate and copper acetate as raw material,citric acid and glucose as reducing agents,photocatalysts are characterized by XRD and SEM.Using Cu2O/TiO2 as photocatalyst,the effects of reaction time,initial concentration,catalyst dosage,initial pH and temperature on photocatalytic degradation of methylene blue were investigated.The results showed that under the irradiation of high pressure mercury lamp,0.01 g Cu2O/TiO2 as photocatalyst,100 mL 10 mg/L methylene blue solution was used as the simulated wastewater at pH 7.0,reaction 60 min at 25℃,the decolorization rate of methylene blue could reach 94.38%.The decolorization kinetics reaction was a first-order process.

关 键 词：二氧化钛 氧化亚铜 光催化 亚甲基蓝 

分 类 号：TQ610[化学工程—精细化工]