Effect of pH in preparation and properties of mesoporous sieve from montmorillonite

被引：1
|
作者：
Xia, Maosheng [1 ]
Jiang, Yinshan [1 ]
Li, Fangfei [1 ]
Sun, Mengmeng [1 ]
Xue, Bing [1 ]
机构：
[1] Jilin Univ, Dept Mat Sci & Engn, Minist Educ, Key Lab Automobile Mat, Changchun 130026, Peoples R China
来源：
JOURNAL OF POROUS MATERIALS | 2010年 / 17卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Synthesis; Montmorillonite; pH; Dual mesopores; MOLECULAR-SIEVES; RHEOLOGICAL PROPERTIES; THERMAL-STABILITY; AQUEOUS-MEDIUM; SURFACE-AREA; SILICA; POROSITY; SUSPENSIONS; BENTONITE; CLAY;
D O I：
10.1007/s10934-009-9273-8
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Mesoporous material with dual mesoporous size distribution had been synthesized with montmorillonite as precursor. The materials exhibited two kinds of mesopores: one is mesopore in interlayers of montmorillonite with mean sizes of 2.9 nm, the other is mesopore out of layers of montmorillonite with mean sizes of 3.9 nm. With the increasing of pH values (8.0-11.0), the specific surface area and pore volume of two kinds of mesopores changed regularly. The samples were characterized by XRD, TEM and Nitrogen adsorption/desorption isotherms. The results indicated that higher pH benefits the synthesis of mesoporous montmorillonite with smaller pore and the TOT of montmorillonite had been present as porous wall.
引用
收藏
页码：139 / 144
页数：6
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