Structure Characteristics of Mesoporous Montmorillonite Made by Ice-template

doi:10.3724/SP.J.1077.2011.01205

Abstract

Abstract: Mesoporous sodium montmorillonite (Na-MMT) was made with ice template. The experimental results show that its mesoporous diameter are mainly distributed between 35nm and 45nm, its shapes are wedgy under controling the microgel concentration of Na-MMT from 1.8% to 2.1% and its particle sizes is in the rang of 0.15-0.6μm. The macro-morphology of microgel Na-MMT prepared by frozen drying are parallel assemble regularly. Na-MMT possesses the numerous maroporous and mesoporous characteristics in its interlayer simultaneously. The d(001) distance of the Na-MMT increases from 1.238 nm to 1.901 nm, and the surface area increases from 16.5m²/g to 213.6m²/g.

Key words: ice crystal, template, mesoporous material, montmorillonite

CLC Number:

TU52

YANG Kui, YANG Chang-Hui, LI Zhen. Structure Characteristics of Mesoporous Montmorillonite Made by Ice-template[J]. Journal of Inorganic Materials, 2011, 26(11): 1205-1209.

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