Acidic and basic gas adsorption properties in composites of layered double hydroxide/aluminosilicate xerogels

被引：7

作者：

Okada, K ^{[1
]}

Kaneda, A ^{[1
]}

Kameshima, Y ^{[1
]}

Yasumori, A ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Met & Ceram Sci, Meguro Ku, Tokyo 1528552, Japan

来源：

MATERIALS RESEARCH BULLETIN | 2002年 / 37卷 / 02期

基金：

日本学术振兴会;

关键词：

ceramics; composites; sol-gel chemistry; surface properties;

D O I：

10.1016/S0025-5408(01)00687-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Composites of Mg-Al LDH and ASG were prepared by various methods, and their acidic and basic gas adsorption properties were investigated by CO2 and NH3 gas TPD. Of the various preparation methods, composite samples prepared by precipitation of LDH in an ASG sol solution showed a superior adsorption for both acidic and basic gases. The adsorption was higher than the arithmetic mean of the LDH, which mainly adsorbs acidic gas and the ASG, which mainly adsorbs basic gas. These composites could be good candidates as adsorbents and deodorants for the simultaneous uptake of acidic and basic adsorbates, i.e. materials with dual function adsorption properties. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：209 / 219

页数：11

共 15 条

[1] THE DETERMINATION OF PORE VOLUME AND AREA DISTRIBUTIONS IN POROUS SUBSTANCES .1. COMPUTATIONS FROM NITROGEN ISOTHERMS [J].