摘要
采用电喷法合成了TiO2纳米纤维与微米球.通过X射线粉末衍射、扫描电镜、紫外可见漫反射光谱和比表面积与孔径分析,对TiO2纳米纤维与微米球进行了结构表征.详细研究了影响TiO2纳米纤维与微米球成型的各种因素.结果表明,电喷所用的聚合物溶液的黏度是TiO2纳米纤维与微米球成型的关键因素.光催化分解水制氢测试表明,与TiO2纳米颗粒相比,TiO2纳米纤维与微米球的光催化分解水产氢活性分别提高了80%和60%.
TiO2 nanofiber and microsphere were synthesized by the electrospinning method and characterized by X-ray powder diffraction, scan electronic microscope, ultraviolet visible diffuse reflectance spectrum and nitrogen sorption analysis. The effects of different reaction conditions on the formation of TiO2 nanofiber and microsphere were studied. The results show that the viscosity of polymer solution was the key factor that determined the morpha of TiO2 nanofiber and microsphere. Compared with the TiO2 nanoparticle, the photocatalytic activity of TiO2 nanofiber and microsphere increased by a factor of 80% and 60%, respectively.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2005年第7期693-696,共4页
Journal of Xi'an Jiaotong University
基金
国家重点基础研究发展规划资助项目(2003CB214500)
国家自然科学基金资助项目(50276050).
关键词
TiO2纳米纤维
TiO2微米球
电喷
光催化
Hydrogen fuels
Nanostructured materials
Photocatalysis
Powder metallurgy
Production
Scanning electron microscopy
Viscosity
X ray powder diffraction
