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化学学报
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化学学报 ›› 2004, Vol. 62 ›› Issue (12): 1148-1152. 上一篇    下一篇

研究论文

均相水解法制备金红石含量可控的纳米TiO2

刘威1, 陈爱平1, 林嘉平1, 戴智明1, 邱炜1, 刘伟1, 朱孟钦1, 臼田昭司2   

  1. 1. 华东理工大学材料科学与工程学院, 超细材料制备与应用教育部重点实验室, 上海, 200237;
    2. 大阪府立工业高等专门学校, 系统与控制工程学院, 大阪572-8572, 日本
  • 投稿日期:2003-08-05 修回日期:2003-12-15 发布日期:2014-02-17
  • 通讯作者: 陈爱平,E-mail:apchen@ecust.edu.cn;Fax:021-64250624. E-mail:apchen@ecust.edu.cn
  • 基金资助:
    上海市重点学科建设项目、国家自然科学基金重点(No.20236020)资助项目.

Preparation of Nano-scale TiO2 with Controllable Rutile Content by Homogeneous Hydrolysis

LIU Wei1, CHEN Ai-Ping1, LIN Jia-Ping1, DAI Zhi-Ming1, QIU Wei1, LIU Wei1, ZHU Meng-Qin1, USUDA Shouji2   

  1. 1. Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;
    2. Department of Systems & Control Engineering, Osaka Prefectural College of Technology, Osaka 572-8572, Japan
  • Received:2003-08-05 Revised:2003-12-15 Published:2014-02-17

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用均相水解法通过调节对甲苯磺酸的添加量制备了金红石含量线性可控的纳米TiO2粒子,相同条件下,没有加入对甲苯磺酸时,制备的TiO2颗粒为纯锐钛矿晶型.制备的纳米TiO2颗粒,其单晶尺寸为19.5 nm(金红石),13.5 nm (锐钛矿),比表面积72.7 m2/g,通过公式计算得到了制备的TiO2纳米颗粒带隙能为2.83 eV,比P25和纯锐钛矿纳米TiO2颗粒的带隙能均低.

关键词: 均相水解法, 金红石含量可控, 纳米TiO2

The homogeneous hydrolysis method was proposed to synthesize nanoscale TiO2 mixed crystal. It is remarkable that the content of rutile crystal phase in TiO2 mixed crystal was controllable by the addition of toluene-p-sulfonic acid. The relationship between toluene-p-sulfonic acid and rutile phase of TiO2 was presented. TiO2 was pure anatase crystallite without the addition of toluene-p-sulfonic acid. The sample with 0.2 addition ratio of toluene-p-sulfonic acid was studied. The properties of a TiO2 sample prepared are that the size of nano-crystallite was 19.5 nm for rutile, and 13.5 nm for anatase, the specific surface area was 72.7 m2/g, and the energy of band gap was 2.83 eV.

Key words: homogeneous hydrolysis, controllable rutile content, nano-crystallite TiO2