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Preparation and characterization of zinc-doped gallophosphate molecular sieve

Published online by Cambridge University Press:  31 January 2011

Masatoshi Yoshino ,
Motohide Matsuda  and
Michihiro Miyake
Masatoshi Yoshino
Affiliation:
Department of Environmental Chemistry and Materials, Faculty of Environmental Science and Technology, Okayama University, Tsushima-Naka, Okayama 700–8530, Japan
Motohide Matsuda
Affiliation:
Department of Environmental Chemistry and Materials, Faculty of Environmental Science and Technology, Okayama University, Tsushima-Naka, Okayama 700–8530, Japan
Michihiro Miyake
Affiliation:
Department of Environmental Chemistry and Materials, Faculty of Environmental Science and Technology, Okayama University, Tsushima-Naka, Okayama 700–8530, Japan
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Abstract

The effect of Zn doping on crystallization of gallophosphate molecular sieve, cloverite, synthesized hydrothermally at 170 °C, using starting gels with ZnO, was investigated by x-ray diffraction (XRD), scanning electron microscopy (SEM), and molecular dynamics (MD) simulation, etc. The SEM observations and crystallinities estimated from XRD data revealed that Zn-doped cloverite with very good crystallinity was successfully prepared, and the addition of ZnO to the starting gel was effective in promoting the crystallization process in a short reaction time. The results of chemical analyses, estimated unit cell dimensions, and MD simulations suggested the substitution of Zn atoms for Ga atoms in the framework of Zn-doped cloverite.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 10 , October 2002 , pp. 2672 - 2678
Copyright
Copyright © Materials Research Society 2002

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