Synthesis of mesostructure anatase TiO₂ particles in room-temperature ionic liquids

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• 作者：Shuanfeng Hu ; Haiyan Wang ; Jieming Cao ; Jinsong Liu ; Baoqing Fang ; Mingbo Zheng ; Guangbin Ji ; Fang Zhang ; Zhenjiang Yang
• 关键词：Room-temperature ionic liquids (RTILs) ; Sol– ; gel preparation ; TiO₂ ; Porosity ; Mesostructure
• 刊名：Materials Letters
• 出版年：2008
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：30 June 2008
• 卷：62
• 期：17-18
• 页码：2954-2956
• 文件大小：391 K

摘要

This paper reports a novel preparation of Mesostructure anatase TiO₂ nanoparticles and monodisperse spheres with high surface area. In this synthesis we use 1-(2-hydroxylethyl)-3 -methylimidazolium based room temperature ionic liquids (RTILs) as solvents via the sol–gel method at low temperature. The product was analyzed and characterized by X-ray diffraction (XRD), Transmission electron microscope (TEM), Scanning electron microscope (SEM), N₂ adsorption and desorption. The mechanism was also discussed. It was believed that the RTILs played an important role as a self-assembling template and the high surface area of the samples is thought to mainly attribute to the formation of mesopores with crystallinity in the reaction.