Das, Jugal Kishore and Das, Nandini and Bandyopadhyay, Sibdas (2012) Effect of PVP Intermediate Layer on the Properties of SAPO 34 Membrane. Advances in Materials Science and Engineering, 2012. Article ID-650217. ISSN 1687-8434

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Abstract

SAPO 34 zeolite membranes were prepared on a tubular mullite support. Before membrane preparation, the support surfaces were coated with seed crystals. Seeds particles were prepared by hydrothermal synthesis. Before seeding, the substrates were treated with polyvinylpyrrolidone (PVP) to orient the seeds. Both the treated and untreated supports were seeded, and membranes were synthesized on those support tubes by ex situ hydrothermal method. The PVP molecule exists in the two resonance structures. Hence the acylamino bond -N+ = C-O--acts as intermediate linker between support surface and seed surface. Due to charge interaction, the seed crystals were anchored strongly to support surface. The synthesized membranes along with seed crystals were characterized by XRD, FESEM, and EDAX analysis. The single-gas permeation with CO2 and H-2 was investigated. Up to 5 bar of feed pressure, the permselectivity of CO2 and H-2 was as high as 4.2.

Item Type:	Article
Subjects:	Structural Clay Products
Divisions:	Ceramic Membrane
Depositing User:	Bidhan Chaudhuri
Date Deposited:	28 May 2012 11:42
Last Modified:	28 May 2012 11:42
URI:	http://cgcri.csircentral.net/id/eprint/1437

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