摘要
为了探索制备光催化剂Co_(3)O_(4)的最佳条件,在单因素试验的基础上,采用响应面法考察原料配比、反应时间、煅烧温度及其交互作用对光催化剂Co_(3)O_(4)制备的影响,并对优化条件下制备的Co_(3)O_(4)催化剂进行了SEM和XRD表征分析。研究结果表明,煅烧温度对Co_(3)O_(4)催化性能影响最大,反应时间和原料配比次之,且原料配比与煅烧温度对Co_(3)O_(4)催化性能存在显著交互影响。最佳制备条件为反应时间5.4h,原料配比4.2,煅烧温度325℃下,在此条件下制备的Co_(3)O_(4)催化剂,光催化反应中甲基橙去除率可达到81.97%。
In order to explore the best conditions for the preparation of photocatalyst Co_(3)O_(4),response surface method was used to investigate the effects of raw material ratio,reaction time,calcination temperature and their interaction on the preparation of photocatalyst Co_(3)O_(4).SEM and XRD analysis were carried out on the catalyst prepared under the optimized conditions.The results show that the calcination temperature has the greatest influence on the catalytic performance of Co_(3)O_(4),followed by the reaction time and the ratio of raw materials.The best preparation conditions is reaction time 5.4 h,raw material ratio 4.2,calcination temperature 325℃,and the removal rate of methyl orange is 81.97%.
作者
徐源
石瑞琦
黄大俊
曾文伟
张占梅
XU Yuan;SHI Ruiqi;HUANG Dajun;ZENG Wenwei;ZHANG Zhanmei(School of River and Ocean Engineering,Chongqingjiaotong University,Chongqing 400074,China;Environmental Water Conservancy Project Chongqing Engineering Laboratory,Chongqing 400074,China)
出处
《重庆理工大学学报（自然科学）》
CAS
北大核心
2021年第5期74-79,共6页
Journal of Chongqing University of Technology：Natural Science
基金
重庆市技术创新与应用示范基金项目(cstc2018jscx-msybX0347)
重庆交通大学研究生科研创新基金项目(2019S0129)。
关键词
响应面法
优化
光催化剂
response surface method
optimization
photocatalyst
