沉淀法制备纳米ZnO及光催化甲基橙脱色研究  

Preparation of nano-ZnO by co-precipitation and the investigation of photocatalytic decoloration of methyl orange

作　　者：孟庆明[1] 马迪[1] 李建章[1] 钟俊波[1] 

机构地区：[1]四川理工学院化学与制药工程学院,催化研究所,四川自贡643000

出　　处：《化学工程师》2010年第1期4-6,共3页Chemical Engineer

基　　金：四川省教育厅重大培育项目(No.07ZZ020);四川省教育厅青年基金项目(No.2007B051)

摘　　要：以Zn(NO3)2·6H2O为锌源,(NH4)2CO3和NH3·H2O混合碱为沉淀剂,通过并流沉淀法制备出纳米ZnO粉体,采用XRD和SEM对其进行了表征。以甲基橙为脱色对象,紫外灯(最大吸收波长254nm)为光源,研究了催化剂用量、甲基橙初始浓度、pH值及外加氧化剂(H2O2)对光催化性能的影响。Nano-ZnO powder was prepared by the method of co-precipitation with Zn（NO3）2·6H2O, （NH4）2CO3 and NH3·H2O. The catalytic performance was tested by using UV （λmax=245nm） as light source and methyl orange （MO） as pollutant object. The influent conditions to the reaction such as additive amount of catalyst, initial concentration of MO, pH value and oxidant H2O2 have been studied as well as characterizations of XRD and SEM performed.

关 键 词：纳米氧化锌 制备 光催化 甲基橙 

分 类 号：TQ420.6[化学工程]