Direct synthesis of titanium-modified hybrid periodic mesoporous organosilicas from 1,2-bis(triethoxysilyl) ethane and titanium isopropoxide

被引：16
作者：
Cho, W [1 ]
Park, JW [1 ]
Ha, CS [1 ]
机构：
[1] Pusan Natl Univ, Dept Polymer Sci & Engn, Natl Res Lab Nanoinformat Mat, Pusan 609735, South Korea
来源：
MATERIALS LETTERS | 2004年 / 58卷 / 27-28期
关键词：
hybrid mesoporous organosilica; Ti-modified; nanomaterials;
D O I：
10.1016/j.matlet.2004.06.039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, we first prepared titanium-modified hybrid periodic mesoporous organosilicas (Ti-modified PMOs) by direct synthesis from co-condensation of 1,2-bis(triethoxysilyl)ethane (BTESE) and titanium isopropoxide (Ti) using cetyltrimethyl ammonium bromide as a structure directing agent. X-ray diffraction (XRD) patterns and transmission electron microscopy images showed well-defined hexagonal symmetry mesopore structures for the Ti-modified PMOs. The hexagonal pore structure was maintained up to the loading of 0.3 mole ratio of Ti/BTESE. The UV-Vis spectra indicated the successful incorporation of titanium into the hybrid PMOs, which is also supported by X-ray photoelectron spectra (XPS). The surface area and pore diameter were reduced with increasing loading of titanium. (C) 2004 Elsevier B.V. All rights reserved.
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收藏
页码：3551 / 3554
页数：4
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