标题:
单分散锐钛矿型TiO2亚微米球的制备与光催化性能研究
Synthesis and Photocatalytic Activity of Uniform Anatanse TiO2 Sub-Microspheres
作者:
李巧娜, 陆晓晓, 沈莉, 何泽, 梅玲莉, 朱连文
关键字:
二氧化钛, 亚微米球, 光催化剂, 纳米线球, 纳米管球Titanium Dioxide, Sub-Microspheres, Photocatalyst, Nanowire Sphere, Nanotube Sphere
期刊名称:
《Journal of Advances in Physical Chemistry》, Vol.3 No.3, 2014-08-06
摘要:
以钛酸四正丁酯为钛源，柠檬酸为辅助剂，无水乙醇为溶剂，采用溶剂热法制备了单分散锐钛矿型TiO2亚微米级球，并研究了其对罗丹明的光催化降解性能。此外，以制备的TiO2亚微米级球为前驱体，利用其与浓碱的水热反应，制备了具有等级结构的钛酸盐纳米线球和纳米管球。
Uniform anatase TiO2 sub-microspheres composed of nanoparticles were prepared via a citric acid as assisted hydrolysis of tetra-n-butyl titanate in ethanol under solvothermal conditions. The photocatalytic activity of the as-prepared TiO2 spheres was evaluated by the photodegradation of RhB. The as-prepared TiO2 spheres were treated with concentrated alkali hydroxide solution to transform nanoparticles into nanotubes, leading to the formation of hierarchically structured TiO2 spheres consisting of nanotubes.