Co_3O_4-CNB光催化剂的合成及其性能研究  

A study on preparation and photocatalytic performances of composite catalyst Co_3O_4-CNB

作　　者：郭杰 崔玉民[2] 李慧泉[2] 苗慧[2] 陶栋梁[2] 师瑞娟[2] 王彩华[2] GUO Jie;CUI Yumin;LI Huiquan;MIAO Hui;TAO Dongliang;SHI Ruijuan;WANG Caihua(School of Physics and Electronic Engineering,Fuyang Normal University,Fuyang Anhui 236037,China;Anhui Provincial Key Laboratory for Degradation and Monitoring of Pollution of the Environment,Fuyang Normal University,Fuyang Anhui 236037,China)

机构地区：[1]阜阳师范学院物理与电子工程学院,安徽阜阳236037 [2]阜阳师范学院环境污染物降解与监测安徽省重点实验室,安徽阜阳236037

出　　处：《阜阳师范学院学报（自然科学版）》2018年第3期41-45,共5页Journal of Fuyang Normal University(Natural Science)

基　　金：安徽省高校自然科学研究项目(KJ2017ZD28;KJ2018A0340);阜阳市政府-阜阳师范学院横向合作科研项目(XDHX2016017;XDHX2016004;XDHX201737);安徽省自然科学基金项目(1608085MB34)资助

摘　　要：以CNB和Co_3O_4为前驱体,利用焙烧法制备了CNB和Co_3O_4不同质量比率的Co_3O_4-CNB光催化剂。利用傅里叶变换红外光谱(FTIR)、紫外-可见漫反射光谱图(UV-vis DRS)、固体荧光光谱(PL)等技术对催化剂样品进行表征。以甲基橙作光催化降解污染物模型,考察了复合催化剂Co_3O_4-CNB的紫外光活性及其稳定性;讨论了清除剂对紫外光催化降解甲基橙反应活性物种的影响。研究表明:在所有Co_3O_4-CNB光催化剂样品中,1%Co_3O_4-CNB催化剂活性最高,在此条件下,光照1 h,1%Co_3O_4-CNB光催化降解率达到79.7%。Using CNB and Co3O4 as the precursors respectively,the Co3O4-CNB composite photocatalysts with different mass ratio of CNB and Co3O4 were successfully prepared by a calcination process,and characterized by FTIR,UV-vis DRS and PL.The UV light catalytic activities and stability of Co3O4-CNB were evaluated with methyl orange as photocatalytic reaction model compounds.These active species in the catalytic reaction under UV light were studied by adding a variety of free radical scavengers.The experimental results show that the catalyst of 1%Co3O4-CNB in all Co3O4-CNB has the highest photocatalytic activity.Under the optimization condition,irradiation of 1h with UV light,photocatalytic degradation rates of methyl orange reached 79.7%.

关 键 词：焙烧法 Co3O4-CNB 光催化 甲基橙 

分 类 号：O634[理学—高分子化学]