Adsorption isotherm of water vapor and its large hysteresis on highly ordered mesoporous silica

被引：92

作者：

Inagaki, S ^{[1
]}

Fukushima, Y ^{[1
]}

Kuroda, K ^{[1
]}

Kuroda, K ^{[1
]}

机构：

[1] WASEDA UNIV,DEPT APPL CHEM,SHINJUKU KU,TOKYO 169,JAPAN

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1996年 / 180卷 / 02期

关键词：

water vapor; mesoporous material; hydrophobicity; hysteresis;

D O I：

10.1006/jcis.1996.0345

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The first and second adsorption-desorption isotherms of water vapor on a new mesoporous material derived from kanemite have been measured. The isotherms show unusual type V isotherms and large hysteresis. The type V isotherms, which have never been observed for the other adsorbates, suggest that the mesoporous material has a hydrophobic surface, although the hydrophobicity decreased after treatment with water vapor because of rehydration of the surface. The significantly large hysteresis could be explained by the difference in contact angle between adsorption and desorption. (C) 1996 Academic Press, Inc.

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收藏

页码：623 / 624

页数：2

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