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Open AccessFeature PaperArticle

Synthesis of Binderless ZK-4 Zeolite Microspheres at High Temperature

1
Université de Haute Alsace (UHA), CNRS, Axe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), UMR 7361, 3 bis rue Alfred Werner, F-68093 Mulhouse, France
2
Université de Strasbourg (UniStra), F-67081 Strasbourg, France
3
Department of Civil and Environmental Engineering, Faculty of Engineering and Architecture, American University of Beirut, P.O. Box 11-0236, Riad El Solh, Beirut 1107-2020, Lebanon
*
Author to whom correspondence should be addressed.
Molecules 2018, 23(10), 2647; https://doi.org/10.3390/molecules23102647
Received: 17 September 2018 / Revised: 9 October 2018 / Accepted: 12 October 2018 / Published: 16 October 2018
(This article belongs to the Special Issue Microporous/Mesoporous Inorganic Materials)
Binderless zeolite macrostructures in the form of ZK-4 microspheres were prepared using anion-exchange resin beads as shape-directing macrotemplates. The particles were synthesized under hydrothermal conditions at different temperatures and treatment times. The influence of the different synthesis parameters was investigated by X-ray diffraction, scanning electron microscopy, fluorescence X, nitrogen adsorption measurements and 29Si solid-state NMR. Fully crystalline spheres similar in size and shape to the original resin beads were obtained by a hydrothermal treatment at the highest temperatures (150–180 °C) for a short treatment time of 24 h. The synthesized microspheres showed to be promising in the molecular decontamination of volatile organic compounds (VOCs). View Full-Text
Keywords: zeolites; ZK-4 zeolite; microspheres; molecular decontamination; volatile organic compounds (VOCs) zeolites; ZK-4 zeolite; microspheres; molecular decontamination; volatile organic compounds (VOCs)
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MDPI and ACS Style

Fawaz, E.G.; Salam, D.A.; Nouali, H.; Deroche, I.; Rigolet, S.; Lebeau, B.; Daou, T.J. Synthesis of Binderless ZK-4 Zeolite Microspheres at High Temperature. Molecules 2018, 23, 2647.

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