摘要
以TiO2、Bi4Ti3O12为原材料,采用浸渍-提拉法制备复合薄膜,研究了材料合成工艺对复合薄膜微观形貌、相结构及光催化性能的影响。XRD研究结果表明,合成的复合薄膜材料中含有正交相Bi4Ti3O12和锐钛矿TiO2两种晶相,Bi4Ti3O12沿垂直于玻璃基片的<001>方向取向生长。TiO2溶胶的浓度,Bi4Ti3O12的用量,以及表面活性剂的用量,拉膜次数对复合薄膜的成型有明显的影响,当TiO2溶胶的浓度为3mol/L、TiO2溶胶和Bi4Ti3O12质量比为10:1、表面活性剂的质量分数为3%、拉膜次数为3次的时候,合成的Bi4Ti3O12/TiO2复合薄膜较均匀且具有较优异的光催化性能。
Titanium dioxide/bismuth titanate composite film with good photocatalytic properties was prepared by a dip-coating method using TiO2 and Bi4Ti3O12 as raw materials. The effects of the synthesis parameter factors on the phase, microstructure, morphology and the photocatalytic properties were investigated. XRD results indicate that orthorhombic Bi4Ti3O12 and anatase TiO2 are formed, and the film grows along the <001> direction of the glass substrate. The concentration of titanium dioxide sol, the amount of bismuth titanate and surfactant, and the number of laminated films affect the preparation of the composite film. When the concentration of titanium dioxide sol is 3 mol/L, the sol of titanium dioxide and bismuth titanate mass ratio is 10:1, and the percentage of surfactant is 3 wt% with three times dip-coating, the composite film with more uniform shape has high photocatalytic properties.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2013年第S1期111-114,共4页
Rare Metal Materials and Engineering
基金
国家自然科学基金青年项目(51202156)
清华大学新型陶瓷与精细工艺国家重点实验室开放基金
