We demonstrate an alternative route to tune the morphology of zeolite L crystals using C(2)H(5)OH as the co-solvent in the synthesis gel. A low aspect ratio (0.2 to 0.4) of zeolite L crystals was obtained at lower synthesis temperature (150 °C) and shorter synthesis duration (3 days).
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http://dx.doi.org/10.1039/c1cc10894h | DOI Listing |
Acta Crystallogr E Crystallogr Commun
January 2025
School of Chemical and Biological Engineering, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, South Korea.
The crystal structure of a highly loaded complex of silicalite-1 (SL-1) with eight mol-ecules of -xylene per unit cell has been solved by single-crystal X-ray diffraction. In the crystal, four symmetrical SiO·2CH subunits per unit cell are observed. The -xylene mol-ecules sit at two different positions within the SL-1 channels.
View Article and Find Full Text PDFMaterials (Basel)
December 2024
College of Materials Science and Engineering, Shenyang Jianzhu University, Shenyang 110168, China.
A geopolymer is a low-carbon cementitious material, and its condensation process is akin to the formation of inorganic polymers. The crystal phase of synthesized geopolymers was identified using XRD; the scattering peaks of amorphous phases were analyzed, and the zeolite minerals akin to different n(Si)/n(Al) geopolymers were determined. Based on this, a model structure of N-A-S-H geopolymers was established.
View Article and Find Full Text PDFSci Rep
January 2025
Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia.
This study illuminates the mineral carbonation potential of zeolite minerals. Zeolite minerals are common alteration products of basaltic rocks and are known for their ability to rapidly exchange their interstitial cations with those in aqueous solutions. A series of closed system batch reactor experiments was conducted at 60 °C by combining stilbite, a Ca-bearing zeolite, with 0.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Ian Potter NanoBiosensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, Victoria 3000, Australia.
Metal-organic frameworks (MOFs) provide diverse applications across a wide range of scientific disciplines, including drug/nucleic acid (NA) delivery. In the subclass of MOFs, zeolitic imidazolate framework-8 (ZIF-8) is well regarded due to its exceptional physicochemical properties. Biomolecules can be encapsulated and released under precise conditions within ZIF, making it an important material for materials science and biomedical applications.
View Article and Find Full Text PDFJACS Au
December 2024
Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware DE 19716, United States.
Zeolite coatings are studied as molecular sieves for membrane separation, membrane reactors, and chemical sensor applications. They are also studied as anticorrosive films for metals and alloys, antimicrobial and hydrophobic films for heating, ventilation, and air conditioning, and dielectrics for semiconductor applications. Zeolite coatings are synthesized by hydrothermal, ionothermal, and dry-gel conversion approaches, which require high process temperatures and lengthy times (ranging from hours to days).
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