Formation of Mg(OH)2 nanowhiskers on LTA zeolite surfaces using a sol–gel method

Handle URI:
http://hdl.handle.net/10754/598354
Title:
Formation of Mg(OH)2 nanowhiskers on LTA zeolite surfaces using a sol–gel method
Authors:
Liu, Junqiang; Bae, Tae-Hyun; Esekhile, Omoyemen; Nair, Sankar; Jones, Christopher W.; Koros, William J.
Abstract:
A facile three step sol-gel-precipitation process is used to synthesize Mg(OH)2 nanowhiskers on micron-sized zeolite 5A particle surfaces at room temperature. The putative amorphous gelation product, Mg(OH) n(OR)2-n, forms first by a controlled hydrolysis and condensation reaction involving magnesium isopropoxide and water, ultimately leading to precipitation to form Mg(OH)2 structures on the zeolite surface. The optimum conditions for one dimensional Mg(OH)2 whisker formation are found to be six times the stoichiometric amount of water using 1 M HCl as the catalyst for the sol-gel reaction. The one-dimensional Mg(OH) 2 whiskers have an average diameter of 5-10 nm and length of 50-100 nm. The zeolite micropores are not affected by the Mg(OH)2 whiskers formed on the surface. The surface roughened zeolite 5A, with a Mg(OH) 2 content of about 9 wt%, showed improved adhesion between the zeolite and the polymer in a mixed-matrix composite membrane. © 2011 Springer Science+Business Media, LLC.
Citation:
Liu J, Bae T-H, Esekhile O, Nair S, Jones CW, et al. (2011) Formation of Mg(OH)2 nanowhiskers on LTA zeolite surfaces using a sol–gel method. Journal of Sol-Gel Science and Technology 60: 189–197. Available: http://dx.doi.org/10.1007/s10971-011-2578-5.
Publisher:
Springer Nature
Journal:
Journal of Sol-Gel Science and Technology
KAUST Grant Number:
KUS-I1-011-21
Issue Date:
20-Sep-2011
DOI:
10.1007/s10971-011-2578-5
Type:
Article
ISSN:
0928-0707; 1573-4846
Sponsors:
The authors want to thank ExxonMobil and the King Abdullah University of Science and Technology (Award No.KUS-I1-011-21) for sponsoring this research. We are also grateful to Harry Deckman, Edward Corcoran and Ben McCool for helpful suggestions.
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Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorLiu, Junqiangen
dc.contributor.authorBae, Tae-Hyunen
dc.contributor.authorEsekhile, Omoyemenen
dc.contributor.authorNair, Sankaren
dc.contributor.authorJones, Christopher W.en
dc.contributor.authorKoros, William J.en
dc.date.accessioned2016-02-25T13:19:15Zen
dc.date.available2016-02-25T13:19:15Zen
dc.date.issued2011-09-20en
dc.identifier.citationLiu J, Bae T-H, Esekhile O, Nair S, Jones CW, et al. (2011) Formation of Mg(OH)2 nanowhiskers on LTA zeolite surfaces using a sol–gel method. Journal of Sol-Gel Science and Technology 60: 189–197. Available: http://dx.doi.org/10.1007/s10971-011-2578-5.en
dc.identifier.issn0928-0707en
dc.identifier.issn1573-4846en
dc.identifier.doi10.1007/s10971-011-2578-5en
dc.identifier.urihttp://hdl.handle.net/10754/598354en
dc.description.abstractA facile three step sol-gel-precipitation process is used to synthesize Mg(OH)2 nanowhiskers on micron-sized zeolite 5A particle surfaces at room temperature. The putative amorphous gelation product, Mg(OH) n(OR)2-n, forms first by a controlled hydrolysis and condensation reaction involving magnesium isopropoxide and water, ultimately leading to precipitation to form Mg(OH)2 structures on the zeolite surface. The optimum conditions for one dimensional Mg(OH)2 whisker formation are found to be six times the stoichiometric amount of water using 1 M HCl as the catalyst for the sol-gel reaction. The one-dimensional Mg(OH) 2 whiskers have an average diameter of 5-10 nm and length of 50-100 nm. The zeolite micropores are not affected by the Mg(OH)2 whiskers formed on the surface. The surface roughened zeolite 5A, with a Mg(OH) 2 content of about 9 wt%, showed improved adhesion between the zeolite and the polymer in a mixed-matrix composite membrane. © 2011 Springer Science+Business Media, LLC.en
dc.description.sponsorshipThe authors want to thank ExxonMobil and the King Abdullah University of Science and Technology (Award No.KUS-I1-011-21) for sponsoring this research. We are also grateful to Harry Deckman, Edward Corcoran and Ben McCool for helpful suggestions.en
dc.publisherSpringer Natureen
dc.subjectGrignard treatmenten
dc.subjectMixed matrix membraneen
dc.subjectSol-gelen
dc.subjectSurface rougheningen
dc.titleFormation of Mg(OH)2 nanowhiskers on LTA zeolite surfaces using a sol–gel methoden
dc.typeArticleen
dc.identifier.journalJournal of Sol-Gel Science and Technologyen
dc.contributor.institutionGeorgia Institute of Technology, Atlanta, United Statesen
kaust.grant.numberKUS-I1-011-21en
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