摘要
以自制的粒径均一分散P（St-AA）聚合物微球为模板,制备了P（St-AA）/Fe2O3纳米颗粒,热处理后获得的纳米磁性空心微球;在溶胶凝胶法制备La掺杂TiO2方法的基础上,制备了以磁性空心微球为载体的空心磁性微球负载La掺杂TiO2,通过紫外光催化实验表明,该产品降解亚甲基蓝的效率优于同等条件制备的La掺杂TiO2。通过SEM、TEM对产物的形貌和微观结构进行了表征。
Cr-doped TiO2 magnetic composite microsphere was prepared recur to techniques of sol-gel with magnetic hollow sphere as template in this paper, and the hollow magnetic sphere was prepared by calcining P（St-AA）/Fe2O3 composite sphere which was prepared by home-made monodisperse nano-size P（St-AA） microsphere as template. Furthermore, samples, as photocatalysts, were used to degrade Methylene Blue under UV irradiation. Study showed that the photocatalytic activity of Cr-doped TiO2magnetic composite sphere was better than that of Cr-doped TiO2 microsphere. Morphology and microstructure of the samples were characterized by SEM and TEM.
出处
《武汉生物工程学院学报》
2017年第1期7-10,20,共5页
Journal of Wuhan Bioengineering Institute
基金
武汉市教育局重点项目(2008K014
关键词
TIO2
空心磁性微球
模板法
光催化
Titania（TiO2）
hollow magnetic spher
template method
photocatalysis
