Supercritical Fluid Extraction of a Novel Template from Mesoporous Zirconia and the Effect on Porous Structure

doi:10.1016/S1004-9541(13)60493-2

Chinese Journal of Chemical Engineering ›› 2013, Vol. 21 ›› Issue (6): 698-700.DOI: 10.1016/S1004-9541(13)60493-2

Supercritical Fluid Extraction of a Novel Template from Mesoporous Zirconia and the Effect on Porous Structure

马富, 赵红建

Department of Chemical Engineering, Ningxia Teachers University, Guyuan 756000, China

收稿日期:2011-08-09 修回日期:2012-09-16 出版日期:2013-06-28 发布日期:2013-07-03
通讯作者: MA Fu
基金资助:
Supported by the Natural Science Foundation of Ningxia Province and Innovation Team Projects in Ningxia Teachers University.

Supercritical Fluid Extraction of a Novel Template from Mesoporous Zirconia and the Effect on Porous Structure

MA Fu, ZHAO Hongjian

Department of Chemical Engineering, Ningxia Teachers University, Guyuan 756000, China

Received:2011-08-09 Revised:2012-09-16 Online:2013-06-28 Published:2013-07-03
Contact: MA Fu
Supported by:
Supported by the Natural Science Foundation of Ningxia Province and Innovation Team Projects in Ningxia Teachers University.

摘要/Abstract

摘要： Mesoporous zirconia was synthesized by a new and simple method. Zirconium n-propoxide was used as the zirconium source. A small, inexpensive nonsurfactant, triethanolamine, was used as the template. The template was removed by thermal treatment in air and supercritical fluid extraction using CO₂. The structure of the resulting materials was characterized by X-ray diffraction, transmission electron microscopy, and N₂ adsorption-desorption analyses. The materials are found to have narrowly distributed average pore diameters and wormhole-like pore channels. However, higher surface area and larger pore volume are exhibited after supercritical fluid extraction with CO₂. The removal of the template by thermal treatment also leads to condensation and mild shrinkage of the zirconia framework.

关键词: mesoporous zirconia, triethanolamine, structure, calcination, supercritical fluid extraction

Abstract: Mesoporous zirconia was synthesized by a new and simple method. Zirconium n-propoxide was used as the zirconium source. A small, inexpensive nonsurfactant, triethanolamine, was used as the template. The template was removed by thermal treatment in air and supercritical fluid extraction using CO₂. The structure of the resulting materials was characterized by X-ray diffraction, transmission electron microscopy, and N₂ adsorption-desorption analyses. The materials are found to have narrowly distributed average pore diameters and wormhole-like pore channels. However, higher surface area and larger pore volume are exhibited after supercritical fluid extraction with CO₂. The removal of the template by thermal treatment also leads to condensation and mild shrinkage of the zirconia framework.

Key words: mesoporous zirconia, triethanolamine, structure, calcination, supercritical fluid extraction

马富, 赵红建. Supercritical Fluid Extraction of a Novel Template from Mesoporous Zirconia and the Effect on Porous Structure[J]. Chinese Journal of Chemical Engineering, 2013, 21(6): 698-700.

MA Fu, ZHAO Hongjian . Supercritical Fluid Extraction of a Novel Template from Mesoporous Zirconia and the Effect on Porous Structure[J]. Chin.J.Chem.Eng., 2013, 21(6): 698-700.

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Supercritical Fluid Extraction of a Novel Template from Mesoporous Zirconia and the Effect on Porous Structure

Supercritical Fluid Extraction of a Novel Template from Mesoporous Zirconia and the Effect on Porous Structure

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