文献类型：期刊文献

英文题名：Ultrafine titania photocatalytic materials synthesized by high temperature reaction in TiCl4-O2 system

作者：Shi, LY; Li, CZ; Fang, DY; Zhang, JP; Zhu, YH; Chen, AP

机构：[1]E China Univ Sci & Technol, Dept Chem Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Tech Chem & Phys, Shanghai 200237, Peoples R China;[3]Sch Chem & Chem Engn, Shanghai 200072, Peoples R China

年份：1999

卷号：14

期号：5

起止页码：717

外文期刊名：JOURNAL OF INORGANIC MATERIALS

收录：;EI(收录号：2000045119999);WOS:【SCI-EXPANDED(收录号:WOS:000083388300003)】；

语种：英文

外文关键词：photocatalytic materials; titania; ultrafine particle; aerosol; dyeing wastewater

摘要：Ultrafine titania particles were synthesized by the gas-phase oxidation of titanium tetrachloride in a high temperature tubular aerosol flow reactor. The measurement of EDS, TG-DTA, TEM, XRD and BET surface area was used to characterize the particles. The effect of residence time and reaction temperature on the morphology of titania particles was investigated. The results showed the average particle size of titania became larger and rutile weight fraction increased as the residence time increased, and the maximum rutile weight fraction was attained at 1300 degrees C and the particle size increased with increasing temperature. The prepared. particles and commercial TiO2 were employed for photocatalytic degradation of azo dye active red X-3B in aerated solution. The results showed that the photoactivity of the titania particles of average size 35.3nm and 18.97%. rutile fraction was higher than that of P25 and SH-1.