Preparation and Characterization of Al-pillared montmorillonites

被引:0
|
作者
Xu Hongyan [1 ]
Guo Aihong [1 ]
Xu Hongfei [2 ]
Wang Yonggang [3 ]
机构
[1] Hebei Polytech Univ, Coll Resources & Environm, Tangshan, Peoples R China
[2] Shanxi Inst Water Resources & Hydropower Res, Taiyuan, Peoples R China
[3] China Univ Min & Technol, Sch Chem & Environm Engn, Beijing, Peoples R China
关键词
montmorillonite; X-ray diffraction; BET surface area;
D O I
10.1109/ESIAT.2009.449
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Al-pillared montmorillonites (Al-MMT) were synthesized from natural occurring sodium montmorillonite through the exchange of inter-lamellar ions with hydroxyalumina polyeations. Furthermore, the morphology, composite structure and pore properties of such composite materials were investigated by Powder X-ray Diffraction (XRD), Fourier Transformation Infra-red Spectra (FTIR) and Nitrogen Adsorption-Desorption Isotherms The products retain their layered structure and their pore structures are a slit-shaped pore between plate-like particles. The resultant products possess BJH pore volume as large as 0.18cm(3)g(-1), high BET specific surface area of over 100mg(2)g(-1), narrow pore size distribution in the mesopore region 7-7.5nm after thermal treatment at 500 degrees C.
引用
收藏
页码:237 / 239
页数:3
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