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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/14768

Title: Production of silver-doped analcime by isomorphous substitution technique
Authors: Kwakye-Awuah, B.
Radecka, I.
Kenward, M. A.
Williams, C. D.
Keywords: analcime
silver-doped analcime
isomorphous substitution
Issue Date: Apr-2008
Publisher: Journal of Chemical Technology and Biotechnology
Citation: Journal of Chemical Technology and Biotechnology
Abstract: BACKGROUND: Metal-exchanged zeolites have been reported to have significant limitations on cayalytic activity, such as counterbalancing the negative framework charges and limitation of active space. Alternative methods of incorporating silver ions into the framework of zeolites are therefore necessary. This paper reports on a technique for producing silver doped analcime by isomorphous substitution of silver ion into the framework of analcime. The amount of aluminium in the gel composition was reduced by a factor of 5%, 10% and 20% and an equivalent amount of silver was added to the gel and treated in a conventional manner for zeolite crystallisation. Some of the aluminium in the reaction gel was replaced with the silver. The silver-doped analcime samples where characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-rays (EDX), Fourier transform infrared (FTIR) spectroscopy and inductively coupled plasma-atomic emission spectroscopy (ICP-AES) analysis.
Description: This article is published by Journal of Chemical Technology and Biotechnology
URI: 10.1002/jctb.1938
Appears in Collections:College of Science

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