纳米层包覆TiO_2粒子复合乳胶涂料的光催化和耐老化性能研究  

Study on photocatalytic and aging behavior of coated nano-TiO_2 composite latex coatings

作　　者：徐瑞芬[1] 刘晓玲[1] 张鹏[1] 胡伟康[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《化工新型材料》2006年第2期34-36,共3页New Chemical Materials

基　　金：国家科技成果重点推广计划(2003EC000039)

摘　　要：采用氯化法、通过表面无机包覆制得了主要物相为金红石型TiO2的光催化剂纳米粉体,在乳胶涂料中的应用表明,复合了该产品的乳胶涂料具有优良的光催化杀菌和净化空气的性能,以及优异的耐老化性。提出削弱基体材料耐老化性的不是TiO2的光催化作用,而是TiO2晶格缺陷引起的光化学活性。Coated rutile TiO2 photocatalytic nanoparticles were prepared through chlorination process and surface inorganic coating. Its application in latex coatings indicated the composite product has both excellent photocatalytic bactericidal and air purification performance and good aging behavior. Opinions were put forward that impaired the aging behavior of the basis material was not the photocatalytic effect but the photochemical activity from lattice defect of TiO2.

关 键 词：TIO2 光催化作用 光化学活性 晶格缺陷 耐老化性 

分 类 号：TQ630.1[化学工程—精细化工]