Synthesis of High-quality MCM-41 using silica fume as silica source

被引：2

作者：

Li, Mingming ^{[1
]}

Zhu, Wenjie ^{[2
]}

Ma, Wenhui ^{[1
]}

Zhou, Yang ^{[1
]}

Xie, Keqiang ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Natl Engn Lab Vacuum Met, Kunming 650093, Peoples R China

[2] Kunming Univ Sci & Technol, Fac Enivronm Sci Engn, Kunming 650500, Peoples R China

来源：

RESOURCES AND SUSTAINABLE DEVELOPMENT, PTS 1-4 | 2013年 / 734-737卷

关键词：

Silica fume; MCM-41; Citric acid; Hydrothermal synthesis; Two-stage method; MESOPOROUS MOLECULAR-SIEVES;

D O I：

10.4028/www.scientific.net/AMR.734-737.2536

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The high-quality MCM-41 was synthesized from silica fume with Citric acid and cetyltrimethylammonium bromide (CTAB) as template agents. Silica fume entered into liquid system in silicate and matched with CTA(+). Mesoporous phase formed with the help of Citric and PEG-6000 in an acidic process followed. The structure and morphology of mesoporous silica material so-prepared was investigated based on the analysis of X-ray diffraction (XRD), N-2 sorption/desorption (BET) and transmission electron microscopy (TEM). The results indicated that MCM-41 was successfully prepared by substituting silica fume for the traditional silica source of tetraethyl orthosilicate, and the MCM-41 displayed high quality with the pore sizes 4.3 nm, the BET areas 1058 m(2)/g, the total pore volume 0.862 cm(3)/g.

引用

页码：2536 / +

页数：2

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