文献类型：期刊文献

中文题名：TiCl4—O2体系高温反应制备超细TiO2光催化材料的研究

英文题名：Ultrafine Titania Photocatalytic Materials Synthesized by High Temperature Reaction in TiCl_4-O_2 System

作者：施利毅[1];李春忠[2]

机构：[1]上海大学化学化工学院;[2]华东理工大学技术化学物理研究所

年份：1999

卷号：14

期号：5

起止页码：717

中文期刊名：无机材料学报

外文期刊名：Journal of Inorganic Materials

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家九五攻关项目!96-554-02;;国家自然科学基金!29506045

语种：中文

中文关键词：光催化材料;二氧化钛;染料;废水处理;氯化钛;氧

外文关键词：photocatajytic materials, titania, ultrafine particle, aerosol, dyeing wastewater

摘要：高温管式气溶胶反应器中，利用ＴｉＣｌ４气相氧化制备超细ＴｉＯ２光催化材料，研究了停留时间和反应温度对粒子形态的影响。结果表明ＴｉＯ２粒度随停留时间延长和反应温度升高而增大；金红石相含量随停留时间延长而增加；当反当温度１３００℃时，粒子中金红石含量出现最大值。以偶氮染料活性艳红Ｘ－３Ｂ为模拟废水，考察粒子光催化活性。光催化活性与粒径和晶型等形态指标有关。等效粒径３６．４ｎｍ，金红石含量１８．９７％Ｔ
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 residencetime and reaction temperature on the morphology of titania particles was investigated. The resultsshowed the average particle size of titania became larger and rutile weight fraction increased as theresidence time increased, and the maximum rutile weight fraction was attained at 1300 and theparticle size increased with increasing temperature. The prepared particles and commercial TiO2were employed for photocatalytic degradation of azo dye active red X--3B in aerated solution. Theresults 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.