Title of article
Effect of Treatment with NaAlO2 Solution on the Surface Acid Properties of Zeolite β
Author/Authors
Xie Zaiku، نويسنده , , Bao Jiaqing، نويسنده , , Yang Yiqing، نويسنده , , Chen Qingling، نويسنده , , Zhang Chengfang، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
9
From page
58
To page
66
Abstract
The influence of treatment with an NaAlO2 aqueous solution of NaAlO2 on the surface acid properties of zeolite β was studied as a method to increase the number of both Brønsted and Lewis acid sites. The Hβ samples, prepared by treating with an aqueous solution of NaAlO2, were characterized by XRD, NH3-TPD, pyridine-IR, 29Si MAS NMR, and 27Al MAS NMR. The surface properties of the Hβ zeolite changed after treatment with the aqueous NaAlO2 solution: the number of strong and weak acid sites, the total amount of acid, and the Brønsted and Lewis acid sites increased. The treatment of zeolite β with an aqueous solution of NaAlO2 may realuminate an Si(0Al)A site by the isomorphous substitution of Al(OH)4− anions.
Journal title
Journal of Catalysis
Serial Year
2002
Journal title
Journal of Catalysis
Record number
1222178
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