催化学报

催化学报 ›› 2010, Vol. 31 ›› Issue (6): 605-614.

• 综述 •    下一篇

含 TiO2(B) 介孔氧化钛材料的制备、特性和应用

陈闪山, 朱银华, 李伟, 刘维佳, 李力成, 杨祝红, 刘畅, 姚文俊, 陆小华, 冯新   

  1. 南京工业大学材料化学工程国家重点实验室, 江苏南京 210009
  • 收稿日期:2010-06-25 出版日期:2010-06-25 发布日期:2013-12-05

Synthesis, Features, and Applications of Mesoporous Titania with TiO2(B)

CHEN Shanshan, ZHU Yinhua, LI Wei, LIU Weijia, LI Licheng, YANG Zhuhong, LIU Chang, YAO Wenjun, LU Xiaohua*, FENG Xin   

  1. State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu, China
  • Received:2010-06-25 Online:2010-06-25 Published:2013-12-05

PDF

1970

摘要： 综述了近年来本课题组依据材料化学工程研究思想, 对含 TiO2(B)(一种比金红石和锐钛矿相结构更松散的氧化钛晶型) 介孔氧化钛材料在制备、结构和性能方面所取得的研究进展. 该介孔材料由二钛酸钾经水合、离子交换和热处理得到, 具有良好原子尺度晶格匹配界面特征的锐钛矿和 TiO2(B) 核壳结构. 研究表明, 该介孔材料在兼备高比表面积、高晶化孔壁和高热稳定性的同时, 还表现出良好的纳米颗粒担载稳定性, 在光催化、油品加氢精制、药物载体、固体酸催化和电化学电容器等方面已凸显出良好的应用潜力和推广价值. 目前该新型含 TiO2(B) 介孔氧化钛材料已经实现低成本、规模化制备.

关键词: 介孔, 氧化钛, 比表面积, 热稳定性, 光催化, 加氢脱硫, 药物载体

Abstract: The mesoporous titania with TiO2(B) (mt-TiO2(B)), which has a lattice-matched core-shell crystalline structure with a thin TiO2(B) phase sheathing an anatase core, was synthesized from potassium titanate (K2Ti2O5) by hydration, ion exchange, and calcination. TiO2(B) is a crystalline form of titania with a looser structure than anatase and rutile. Its synthesis, structure, and functions are reviewed. It has all the features of a large specific surface area with a mesoporous architecture, pore wall of high crystallinity and high thermostability. Nanoparticles of noble metals in this mesoporous structured titania are stable. Its potential industrial applications include photocatalysis, oil hydrorefining, and use as a drug carrier, solid acid catalyst, and electrode material. A pilot plant to prepare this unique multifunctional titania material at low cost has been established with a production capacity of 20 tons per year.

Key words: mesoporous, titania, specific surface area, thermostability, photocatalysis, hydrodesulfurization, drug carrier