Synthesis of Ti-containing MCM-48 by using TiF4 as titanium source

被引：10

作者：

Yuan, Shuai ^{[1
]}

Shi, Liyi ^{[1
]}

Mori, Kohsuke ^{[2
]}

Yamashita, Hiromi ^{[2
]}

机构：

[1] Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China

[2] Osaka Univ, Grad Sch Engn, Div Mat & Mfg Sci, Suita, Osaka 5650871, Japan

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 17-18期

关键词：

TiF4; Ti-MCM-48; mesoporous; nanocomposites; porosity;

D O I：

10.1016/j.matlet.2008.01.100

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

TiF4 and Ti(OEt)(4) were used as titanium source to prepare Ti-containing MCM-48 by hydrothermal method, respectively. The products were characterized by X-ray diffraction (XRD), N-2 adsorption-desorption, UV-visible absorption spectra and X-ray absorption near edge structure (XANES). The analysis results indicated that the types of titanium sources have great effects on the formation of Ti-MCM48. Using TiF4 as precursor, Ti-containing silica with cubic mesoporous structure can be synthesized simply and quickly. The UV-visible absorption spectra and Ti K-edge XANES spectra confirmed that the isolated tetrahedrally-coordinated titanium oxide moieties were highly dispersed in the framework of MCM-48 by using TiF4 as titanium source. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：3028 / 3030

页数：3

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