摘要
采用溶胶-凝胶法,制备了二氧化铈包覆金红石型钛白粉颗粒。采用罗丹明b紫外老化实验法,研究了氧气、表面包覆结构、表面包覆量以及铈、硅和锆无机盐氧化物对金红石型钛白粉耐候性的影响。结果表明,致密均匀的铈氧化物表面包覆能改善金红型钛白粉的耐候性,阻隔与周围氧气的接触;当铈氧化物包覆量为3%时,金红石型钛白粉的耐候性最好;铈氧化物比硅、锆无机盐氧化物能更好的改善金红石型钛白粉的耐候性能。
The CeO2-coated rutile TiO2 were prepared by sol-gel method.The influence of oxygen,microstruc-ture,amount of surface coating and cerium,silicon and zirconium inorganic oxide on rutile TiO2 weatherability were studied by rhodamine b ultraviolet aging test method.The results showed that dense and uniform cerium oxide surface coating can improve the rutile TiO2 weatherability and cut off contact with the oxygen around;ru-tile TiO2 coated 3% cerium oxide have the best weatherability;cerium oxide can better improve the rutile TiO2 weatherability than silicon and zirconium inorganic oxide.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2016年第12期12217-12221,共5页
Journal of Functional Materials
基金
国家自然科学基金项目(51174085
51374103)
湖南省教育厅资助项目(13C029)
湖南省科技计划资助项目(2011GK4055)
