eprintid: 11889
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/18/89
datestamp: 2023-11-10 03:26:25
lastmod: 2023-11-10 03:26:25
status_changed: 2023-11-10 01:16:23
type: conference_item
metadata_visibility: show
creators_name: Aimen Isa, M.
creators_name: Leng Chew, T.
creators_name: Fong Yeong, Y.
title: Studies on Different Support Seeding Conditions Applied in the Formation of NaY Zeolite Membrane
ispublished: pub
note: cited By 1; Conference of 2018 International Conference on Chemical Sciences and Engineering: Advance and New Materials, ICCSE 2018 ; Conference Date: 7 November 2018 Through 8 November 2018; Conference Code:157391
abstract: Exploring the efficient synthesis method is essential in producing zeolite membranes with minimum defects. Seeding prior hydrothermal synthesis (HT) is the major parameters that affecting the quality of zeolite membrane formed. The colloidal stability of the NaY seed solution and its attachment to the support were studied by varying the pH of the seed solutions. Three seeding methods, including dip-coating, spin coating and vacuum coating, were studied in forming NaY zeolite seed layer. Then, the seeded alumina supports were subjected to hydrothermal treatment (HT) in order to form NaY zeolite membranes. The effect of NaY seeds solution colloidal stability, electrostatic attachment between seeds and support and the seeding methods on the properties of the quality of the formed NaY zeolite membranes were investigated. The zeta potential of the seed solution was measured with respect to different pH of the seed solution. The formed NaY zeolite membrane samples were characterized with X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) and Energy dispersive X-Ray spectroscopy (EDX). Spin coating and vacuum coating displayed better seeds coverage onto the alumina support due to the vacuum lock mechanism however excessive seeds accumulation onto the alumina support will inhibit zeolite growth and expansion hence to produce NaY zeolite membranes with cracks. Nonetheless, seeded supports by dip coating method display less coverage on the support however with a proper selection pH of the seeding solution with relates to its zeta potential, stable aqueous colloidal dispersion of the seeds solution and better attachment between the zeolite seeds and the support could be achieved in order to form zeolite NaY membranes with least defects. © 2019 Elsevier Ltd.
date: 2019
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85087850713&doi=10.1016%2fj.matpr.2019.11.176&partnerID=40&md5=cccb57e704efc0fb04be9e7667ec435b
id_number: 10.1016/j.matpr.2019.11.176
full_text_status: none
publication: Materials Today: Proceedings
volume: 19
pagerange: 1514-1523
refereed: TRUE
issn: 22147853
citation:   Aimen Isa, M. and Leng Chew, T. and Fong Yeong, Y.  (2019) Studies on Different Support Seeding Conditions Applied in the Formation of NaY Zeolite Membrane.  In: UNSPECIFIED.