biostudies-literatureUnknown7(24)Samad Azad MAIn this work, a silver-coated zinc oxide nanocomposite (ZnO/Ag NC) was synthesized <i>via</i> a sol-gel method combined with ultrasonic irradiation. SEM analysis revealed uniform particle size and morphology, while UV-vis spectroscopy showed a slight absorption shift due to silver incorporation, and FT-IR confirmed successful Ag coating on ZnO nanoparticles, which was further applied to degrade methylene blue dye and showed stronger antibacterial activity against both Gram-positive and Gram-negative bacteria compared to pure ZnO. Detailed XRD studies confirmed a well-defined wurtzite structure and revealed that the material is semi-crystalline with crystallite sizes ranging from 1 to 100 nm, averaging about 74 nm. Crystallographic parameters such as crystallite size, internal strain, and cNanoscale advances8138-8153https://www.ebi.ac.uk/biostudies/studies/S-EPMC12628709biostudies-literatureStructural insights into zinc oxide-silver nanocomposite &lt;i&gt;via&lt;/i&gt; different XRD models: rapid synthesis with photocatalytic &amp; antibacterial applications.PMC12628709Hossain MSBhowmik SSamad Azad MASaikat SPHasan MRfalseStructural insights into zinc oxide-silver nanocomposite &lt;i&gt;via&lt;/i&gt; different XRD models: rapid synthesis with photocatalytic &amp; antibacterial applications.In this work, a silver-coated zinc oxide nanocomposite (ZnO/Ag NC) was synthesized <i>via</i> a sol-gel method combined with ultrasonic irradiation. SEM analysis revealed uniform particle size and morphology, while UV-vis spectroscopy showed a slight absorption shift due to silver incorporation, and FT-IR confirmed successful Ag coating on ZnO nanoparticles, which was further applied to degrade methylene blue dye and showed stronger antibacterial activity against both Gram-positive and Gram-negative bacteria compared to pure ZnO. Detailed XRD studies confirmed a well-defined wurtzite structure and revealed that the material is semi-crystalline with crystallite sizes ranging from 1 to 100 nm, averaging about 74 nm. Crystallographic parameters such as crystallite size, internal strain, and c2025-01-01T00:00:00Z2025 Dec2026-06-05T21:58:18.085Z2026-05-22T03:16:04.246ZS-EPMC126287094126804510.1039/d5na00790a