Preparation of Mesoporous Analcime/Sodalite Composite from Natural Jordanian Kaolin

In this work, a meso-macroporous analcime/sodalite zeolite composite was produced by a hybrid synthesis process between a complex template method and hydrothermal treatment at 220 °C of naturally abundant kaolinitic-rich clay, using dodecyltrimethylammonium bromide as an organic soft template to enh...

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Bibliographic Details
Published in:	Materials Vol. 17; no. 19; p. 4698
Main Authors:	Esaifan, Muayad, Al Daboubi, Fayiz, Hourani, Mohammed Khair
Format:	Journal Article
Language:	English
Published:	Switzerland MDPI AG 25-09-2024 MDPI
Subjects:	Adsorption analcime Catalysis Catalytic activity Caustic soda Chemical composition Chemical synthesis Clay composite Composite materials Desorption Dodecyltrimethylammonium bromide Drug delivery systems Drugs Fourier transforms Hydrothermal treatment Infrared analysis Infrared spectroscopy Kaolin meso-macroporous Methods Mineralogy Morphology Oxidation Phenols Plasma sintering Pollutants Pore size Porous materials Raw materials Silica Silicates Sodalite soft template Spectrum analysis Surface active agents Surfactants Thermogravimetric analysis Vehicles VOCs Volatile organic compounds X ray powder diffraction Zeolites United Kingdom > UK United States > US Germany analcime meso-macroporous soft template zeolites composite hydrothermal sodalite
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Summary:	In this work, a meso-macroporous analcime/sodalite zeolite composite was produced by a hybrid synthesis process between a complex template method and hydrothermal treatment at 220 °C of naturally abundant kaolinitic-rich clay, using dodecyltrimethylammonium bromide as an organic soft template to enhance the mesoporous structure. The chemical and morphological properties of the developed zeolites composite were characterized using powder X-ray diffraction (PXRD), attenuated total Reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), thermogravimetric analysis (TGA), N adsorption/desorption; and scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS) methods were used to study the morphology, chemical composition and structure of the product. Two types of zeolite particles were obtained:(1) hollow microsphere with an attached analcime icositetrahedron of 30-40 µm in size and (2) sodalite microsphere with a ball-like morphology of 3-4 µm in size. Both N adsorption/desorption and surface area data confirmed the high potentiality of the produced zeolite composite to act as an excellent adsorbent to remove inorganic pollutants such as Cu, Cd, Cr, Ni, Zn, and Pb ions, organic pollutants such as dyes, phenolic compounds, and surfactants from water; and their high catalytic activity, especially in the oxidation reaction of volatile organic compounds. The catalytic activity and adsorption ability of the produced analcime/sodalite composite will be tested experimentally in future work.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1996-1944 1996-1944
DOI:	10.3390/ma17194698