文献类型：期刊文献

英文题名：Controllable crystalline nano-TiO2 by homogeneous hydrolysis with toluene-p-sulfonic acid

作者：Liu, Wei[1]; Chen, AiPing[1]; Lin, JiaPing[1]; Dai, ZhiMing[1]; Qiu, Wei[1]; Liu, Wei[1]; Zhu, MengQin[1]; Usuda, Shouji[2]

机构：[1] Key Laboratory for Ultrafine Materials, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China; [2] Department of Systems and Control Engineering, Osaka Prefectural College of Technology, Osaka 572-8572, Japan

年份：2005

卷号：88

期号：1

起止页码：168

外文期刊名：Journal of the American Ceramic Society

收录：EI(收录号：2005469469414)

语种：英文

外文关键词：Enzymes - Hydrolysis - Nanostructured materials - Synthesis (chemical) - Toluene

摘要：The homogeneous hydrolysis method was proposed to synthesize nano-TiO 2 with mixed crystal of anatase and rutile. It is remarkable that the crystal-form-controllable nanosize TiO2 was obtained by the addition of toluene-p-sutfonic acid (TSA). Two processes of the rutile phase formation were proposed. TiO2 was pure anatase crystalline in the absence of TSA. The sample with 0.2 mole ratio of TSA was mixed crystal of anatase and rutile, and characterized that the size of nanocrystalline was 19.5 nm for rutile and 13.5 nm for anatase, the specific surface area was 72.7 m 2/g, and the energy of band gap was 2.83 eV. And the mechanism of the development of rutile nano-TiO2 was presented in homogeneous hydrolysis system with TSA.