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Encapsulation of TiO2 in zeolite Y

✍ Scribed by Xinsheng Liu; Kai-Kong Iu; J. Kerry Thomas

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
336 KB
Volume
195
Category
Article
ISSN
0009-2614

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✦ Synopsis

A new method of incorporating TiO2 into zeolite cavities through ion exchange of zeolites Y with an aqueous solution of ammonium titanyl oxalate oxalate monohydrate, (NH4) 2TiO (C204) 2H20, has been developed. Characterization of the products clearly demonstrates that ( 1 ) ion exchange between the Ti species present in the solution and the cations in the zeolites takes place; (2) the Ti species are located inside the zeolite cavities, but not on the external surface of the zeolite; and (3) the Ti-species encapsulated are TiO2 clusters of various small particles sizes and have characteristics of the TiO2 semiconductor.

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