摘要
溶胶-凝胶被广泛用来制备纳米氧化物材料。以钛酸丁酯为先驱体,冰醋酸为螯合剂,通过水解缩聚作用制备了纳米 TiO2,掺杂钨元素对纳米 TiO2进行改性,运用X射线衍射(XRD)和透射电镜(TEM)及光吸收等手段,研究了不同掺杂量对TiO2 相变和光催化活性的影响,确定了最佳的掺杂量和热处理温度。
The sol-gel process is extensively to prepare oxide nanostructured materials. With HAC as complexation and Ti(OBu)4 as precursor in the preparation, TiO2 gelation was produced by sol-gel method. W component was introduced into the TiO2 precursor as to improve the photocatalystic capacity. The microstructure of the nanostructured materials and their photocatalystic capacity were investigated by using XRD, TEM and optical adsorption etc. The optimum doping content and heat treatment temperature were confirmed.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2005年第1期121-123,共3页
Journal of Functional Materials
基金
安徽省自然科学基金资助项目(00046403)
安徽省十五科技攻关资助项目(01402007)
合肥工业大学中青年创新群体基金资助项目(纳米结构与功能纳米材料)(103 037016)
关键词
溶胶-凝胶法
W掺杂
纳米TIO2
光催化
Doping (additives)
Gelation
Microstructure
Nanostructured materials
Photocatalysis
Sol
gels
Transmission electron microscopy
Tungsten
X ray diffraction analysis
