采用纤蛇纹石制备纳米纤维状多孔氧化硅

被引：26

作者：

冯其明

杨艳霞

刘琨

肖愉

张国范

机构：

[1] 中南大学资源加工与生物工程学院

来源：

中南大学学报(自然科学版) | 2007年 / 06期

关键词：

纤蛇纹石; 多孔氧化硅; 纳米纤维状; 酸浸;

D O I：

暂无

中图分类号：

TB383.1 [];

学科分类号：

摘要：

以天然纤蛇纹石为原料,通过酸浸制备纳米纤维状多孔氧化硅,并使用X射线荧光光谱(XRF)、X射线衍射(XRD)、傅里叶变换红外光谱(FTIR)和N2吸附-脱附等温线技术等对其进行表征。研究结果表明:该多孔氧化硅具有独特的纳米纤维状形貌;其结构为无定形,结构组成单元仍为硅氧四面体,但四面体交替上下排列,六元环结构发生高度扭曲变形。纳米纤维状多孔氧化硅比表面积为391.8 m2/g,总孔容为1.05 cm3/g,由吸附-脱附等温线的滞后回线特征判断其结构中的孔主要为缝隙型孔。

引用

页码：1088 / 1093

页数：6

共 19 条

[1]

Preparation and characterization of amorphous silica nanowires from natural chrysotile.[J].Kun Liu;Qiming Feng;Yanxia Yang;Guofan Zhang;Leming Ou;Yiping Lu.Journal of Non-Crystalline Solids.2007, 16

[2]

Highly accessible catalytic sites on recyclable organosilane-functionalized magnetic nanoparticles: An alternative to functionalized porous silica catalysts.[J].Nam T.S. Phan;Christopher W. Jones.Journal of Molecular Catalysis. A; Chemical.2006, 1

[3]

Pioneer studies on HCl and silylation treatments of chrysotile.[J].Efrain Mendelovici;Ray L. Frost.Journal of Colloid And Interface Science.2005, 2

[4]

Preparation of silica-pillared clays with micro- and meso-pores using aminopropyltriethoxysilane and tetraethoxysilane [J].

Nakao, T ;

Nogami, M .

MATERIALS LETTERS, 2005, 59 (26) :3221-3225

[5]

Kinetic study of the dehydroxylation of chrysotile asbestos with temperature by in situ XRPD [J].

Cattaneo, A ;

Gualtieri, AF ;

Artioli, G .

PHYSICS AND CHEMISTRY OF MINERALS, 2003, 30 (03) :177-183

[6]

Production of extra pure silica from serpentinites [J].

Velinskii, VV ;

Gusev, GM .

JOURNAL OF MINING SCIENCE, 2002, 38 (04) :402-404

[7]

Synthesis of functionalized porous silicas via templating method as heavy metal ion adsorbents: the introduction of surface hydrophilicity onto the surface of adsorbents [J].

Lee, B ;

Kim, Y ;

Lee, H ;

Yi, J .

MICROPOROUS AND MESOPOROUS MATERIALS, 2001, 50 (01) :77-90

[8]

Synthesis of hierarchical porous silicas with a controlled pore size distribution at various length scales.[J].Marc-Olivier Coppens;Jihong Sun;Thomas Maschmeyer.Catalysis Today.2001, 1

[9]

Characterization of porous silica prepared from mechanically amorphized kaolinite by selective leaching.[J].J Temuujin;K Okada;K.J.D MacKenzie;Ts Jadambaa.Powder Technology.2001, 2

[10]

Silica from sepiolite: Preparation, textural properties, and use as support to catalysts [J].

Aznar, AJ ;

Gutierrez, E ;

Diaz, P ;

Alvarez, A ;

Poncelet, G .

MICROPOROUS MATERIALS, 1996, 6 (02) :105-114

← 1 2 →