高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (4): 647-649.

• 研究快报 • 上一篇    下一篇

有机小分子模板法合成二氧化钛中孔材料

郑金玉, 丘坤元, 危岩   

  1. 1. 北京大学化学与分子工程学院高分子科学与工程系, 北京 100871;
    2. 爵硕大学化学系, 费城 PA 19104, 美国
  • 收稿日期:1999-08-24 出版日期:2000-04-24 发布日期:2000-04-24
  • 通讯作者: 丘坤元(1932出生),男,教授,博士生导师,主要从事高分子合成,自由基聚合等研究.
  • 基金资助:

    国家杰出青年基金(批准号:29825504);国家自然科学基金(批准号:29874002)

Synthesis of Mesoporous Titania Materials with Non-surfactant Organic Compounds as Templates

ZHENG Jin-Yu, QIU Kun-Yuan   

  1. 1. Department of Polymer Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;
    2. Departmentof Chemistry, Drexel University, Philadelphia PA 19104, USA
  • Received:1999-08-24 Online:2000-04-24 Published:2000-04-24

关键词: 二氧化钛中孔材料, 2, 2-二羟甲基丙酸, 甘油, 溶胶-凝胶过程

Abstract: Mesoporous titania materials were synthesized using non-surfactant organic compounds, such as 2,2-bis(hydroxymethyl)propionic acid(BHPA), glycerin(Gln) and pentaerythritol(Pent), as templates via the HCl-catalyzed sol gel process. The resultant products have been examined with TGA, BET, XRDand TEM. BETstudies show that the N2 adsorption desorption isotherm plots of the samples prepared with BHPAas a template exhibit type Ⅳ isotherms, which suggest the formation of mesoporous structures. The surface area and pore volume increase slightly with the increasing content of organic template while the pore size is nearly constant (3~4nm) with a narrow distribution about 0.5~0.8 nm. The formation of the titania mesoporous materials is proposed due to the presence of the hydrogen bonding interactions between templates and inorganic precursors.

Key words: Titania mesoporous materials, 2,2-Bis(hydroxymethyl)-propionic acid, Glycerin, Sol-gel-process

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