Structural, Optical and Antibacterial Activity Studies on CMC/PVA Blend Filled with Three Different Types of Green Synthesized ZnO Nanoparticles

Abstract In this work, zinc oxide (ZnO) was produced using extracts of Thymus (Z), Hibiscus rosa-sinensis (K), and Daucus carota (G). Furthermore, sodium carboxymethyl cellulose (CMC) polyvinyl alcohol (PVA) were combined with ZnO to form three novel nanocomposites. X-ray diffraction (XRD) used for the structural analysis, where semicrystalline nature (CMC/PVA)/ZnO nanocomposites confirmed. The characteristics functional groups that arose inside prepared samples identified by Fourier transform infrared spectroscopy (FTIR). Evidence successful preparation pure particles their carried out a transmission electron microscope (TEM). nanoparticles are mostly spherical, irregularly distributed, have radii ranging from 10 40 nm. Their anti-bacterial activity studied against B. subtilis , E. coli, Candida albicans . inhibition zones all coli 0, 19, 31, 23 mm PVA/CMC blend, PVA/CMC/ZnO (Z) (PCZ-Z), (K) (PCZ-K), (G) (PCZ-G), respectively, compared streptomycin control Gram-positive standard zone (34 mm). On other hand, equal 26, 33, 28 CMC/PVA, PCZ-Z, PCZ-K, PCZ-G, respectively. Based on these results, PCZ-K sample is most effective at resisting (91.17%) (94.28%). These do not harmful chemicals, making them strong candidates use in biological applications.