A novel macroporous structure of mesoporous titanias: synthesis and characterisation

被引：27

作者：

Ren, TZ ^{[1
]}

Yuan, ZY ^{[1
]}

Su, BL ^{[1
]}

机构：

[1] Univ Namur, Lab Inorgan Mat Chem, B-5000 Namur, Belgium

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2004年 / 241卷 / 1-3期

关键词：

mesoporous material; macroporous structure; titania; polyalkylene oxide; surfactant templating technology;

D O I：

10.1016/j.colsurfa.2004.04.033

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Mesoporous titania materials with a novel macroporous structure have been synthesized by a one-step simple method in the presence of poly(ethylene oxide) surfactant. The three-dimensional, bicontinuous macroporous structures are in the interiors of the mesoporous titania particles with a uniform pore size gradient. The mesopores are disordered, wormhole-like, formed by the agglomeration of titania nanoparticles with anatase phase. The mesopore size can be modified from microporous to mesoporous range by tuning the synthesis time. The formation mechanism of the macro-mesostructured titanias is proposed. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：67 / 73

页数：7

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