Influence of Crystallization Time by Hydrothermal Synthesis of Ag NPs-Zeolite Composite

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    Ruaa F. Ahmed

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    1. Student,Institute of Laser for Postgraduate Studies, University of Baghdad,Baghdad,Iraq

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    Abstract

    nThe nanocomposites Ag NPs-zeolite involve zeolite loaded with silver nanoparticles and have been prepared by an easy one-pot hydrothermal autoclave method. Three samples of silver-bearing zeolite were prepared for 8 hours, 6 hours, and 4 hours, respectively, inside an autoclave at 100°C. A range of characterization procedures were used to examine the samples, such as x-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), UV-visible spectroscopy, and zeta potential. Results proved that the Ag NPs-zeolite composite shows good distribution of silver nanoparticles in zeolite, and silver nanoparticles are stable inside the pores of zeolite, resulting in the formation of a core-shell with a crystalline structure; a longer crystallization time results in a highly crystalline phase with a larger average particle size and higher absorption intensity; and all samples exhibit high levels of absorption in the region of UV absorption. The composite has low stability of the Ag-zeolite nanoparticles, and the composite contains silver aggregation on the surface of the zeolite. The 8-hour sample is the best for
    applications. It can be used in the preparation of the photoanode pole in photoelectrochemical cells after deposition on fluorine-doped tin oxide as a thin film for renewable energy, catalytic, electrochemical, and anti-bacterial systems.

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    Keywords: Nanoparticles, silver, composites, zeolites, hydrothermal synthesis

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    Conference Open Access Original Research

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    Journal of Polymer and Composites

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    [if 344 not_equal=””]ISSN: 2321–2810[/if 344]

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    Volume 11
    Issue 02
    Received December 8, 2022
    Accepted January 31, 2023
    Published April 18, 2023

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    Reviewer

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