PREPARATION AND PROPERTIES OF CLAYS PILLARED WITH SIO2-TIO2 SOL PARTICLES

被引：59

作者：

YAMANAKA, S ^{[1
]}

INOUE, Y ^{[1
]}

HATTORI, M ^{[1
]}

OKUMURA, F ^{[1
]}

YOSHIKAWA, M ^{[1
]}

机构：

[1] FUJI CHEM IND CO, KAMIICHI, TOYAMA 93003, JAPAN

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1992年 / 65卷 / 09期

关键词：

D O I：

10.1246/bcsj.65.2494

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The silicate layers of montmorillonite clay were pillared with SiO2-TiO2 sol particles. Although only the SiO2 sols were negatively charged, the SiO2-TiO2 mixed oxide sols were positively charged and could be ion-exchanged with the interlayer cations of montmorillonite. The resulting pillared clays had a basal spacing expanded to more than 40 angstrom; the spacing was maintained during calcination up to 773 K. The adsorption properties of the calcined samples were studied for nitrogen as well as organic vapors. A structural model for the arrangement of the intercalated sol particles is proposed in which small SiO2-TiO2 sol particles are packed between the silicate layers. Micropores with a slit width of 10-12 angstrom are formed in the interstices between the sol particles and the silicate layers.

引用

页码：2494 / 2500

页数：7

共 33 条

[1] A COMPARISON OF THE THERMAL STABILITIES GA13, GAAL12 AND AL13-PILLARED CLAY-MINERALS [J].