INCORPORATING SNO2.XH2O INTO THE INTERLAYER SPACINGS OF MONTMORILLONITE

Authors
KIRICSI I PALINKO I TASI G HANNUS I
Citation
I. Kiricsi et al., INCORPORATING SNO2.XH2O INTO THE INTERLAYER SPACINGS OF MONTMORILLONITE, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 244, 1994, pp. 149-154
Citations number
9
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
244
Year of publication
1994
Pages
149 - 154
Database
ISI
SICI code
1058-725X(1994)244:<149:ISITIS>2.0.ZU;2-4
Abstract
SnO2.xH(2)O was incorporated into the silicate layers of Namontmorillo nite (SnO2.xH(2)O-Mont) via the hydrolysis of (NH4)2SnCl(6) in an aque ous slurry of Na-montmorillonite (Mont). The air-dried material and sa mples treated at various temperatures were characterized by X-ray diff ractometry, X-ray fluorescence and infrared spectroscopies, derivatogr aphy and BET measurements. It was found that partially hydrated SnO2 w as precipitated inside the silicate layers. Upon heat treatment dehydr ation/ dehydroxylation occurred, thus, the strength of hydrogen bondin g holding the introduced substance in the layered structure decreased. From 393 K the SnO2 started to migrate onto the outer surface and abo ve 673 K finely dispersed, day-supported SnO2 was formed.