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	Sol-gel synthesis of mesoporous titania using nonsurfactant organic compounds as templates
	Zheng, J.-Y. ; Qiu, K.-Y. ; Feng, Q. ; Xu, J. ; Wei, Y.
	2000
英文摘要	Organic-inorganic composite materials were prepared via HCl-catalyzed sol-gel reactions of tetrabutyl titanate at room temperature in the presence of nonsurfactant compounds, such as 2,2-bis(hydroxymethyl)propionic acid, glycerin and pentaerythritol, as templates or pore-forming agents. Removal of the nonsurfactant molecules from the composites by extraction with water resulted in mesoporous titania materials. Characterized with nitrogen adsorption-desorption isotherms, X-ray diffraction and transmission electron microscopy, these materials were found to have large surface areas (??300 m2/g) and pore volumes (??0.25 cm3/g) as well as narrowly distributed pore diameters of around 3.2 nm. Similar results were also obtained when a neutral surfactant poly(ethylene glycol) was used as the templates. In the presence of templates, the titania materials obtained may contain crystalline anatase phase.; EI; 0
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/412719]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zheng, J.-Y.,Qiu, K.-Y.,Feng, Q.,et al. Sol-gel synthesis of mesoporous titania using nonsurfactant organic compounds as templates. 2000-01-01.

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