摘要
TiO2 nanoparticles were prepared by a novel alkoxide sol precipitation in concentrated nitric acid.The structure and properties of them were characterized by XRD,TEM,TEM and Uv-vis measurements.With the photocatalytic degradation of Cationic Brilliant Red 5GN under UV irradiation in fluidized photoreator as model reaction,the photocatalytic properties of them were investigated.The results indicated that the size of nanopaticle calcined at 500℃ was 15.8 nm and the transformation from anatase to rutile happened between 500℃ and 600℃.It was found that photocatalytic reaction rate for 5GN of the sample prepared under the optimized condition was 2.34 times of that of commerical TiO2.
TiO_2 nanoparticles were prepared by a novel alkoxide sol precipitation in concentrated nitric acid.The structure and properties of them were characterized by XRD,TEM,TEM and Uv-vis measurements.With the photocatalytic degradation of Cationic Brilliant Red 5GN under UV irradiation in fluidized photoreator as model reaction,the photocatalytic properties of them were investigated.The results indicated that the size of nanopaticle calcined at 500℃ was 15.8 nm and the transformation from anatase to rutile happened between 500℃ and 600℃.It was found that photocatalytic reaction rate for 5GN of the sample prepared under the optimized condition was 2.34 times of that of commerical TiO_2.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2005年第3期389-391,共3页
Chemical Research and Application
关键词
纳米二氧化钛
可控制备
光催化性能
降解
结构分析
Titania
controllable preparation
photocatalytic activity
degradation
structure analysis
