Photocatalytic and antioxidant activity of ZnO/Cu/Ag/CNT nanocomposite

Here we report that photocatalytic and antioxidant properties of nanocomposite consist of silver- and copper-doped zinc oxide nanoparticles loaded onto carbon nanotubes (ZnO/Cu/Ag/CNT). The prepared nanocomposite material was analyzed using X-ray diffraction, scanning electron microscopy, tunneling electron microscopy, photoluminescence spectroscopy, and ultraviolet-visible spectroscopy for their structural, morphology, and optical studies. A photodegradation study was carried out against methylene blue, rose bengal, and eosin yellow dyes. The consequences of photocatalyst mass loading, pH, and dye concentration were explored. The optimum has result shown 99% degradation efficiency against methylene blue within 10 min of visible light irradiation at pH 10. A reusability test displayed the photocatalytic efficacy of the nanocomposite material was up to 83% after 4 rounds of use against methylene blue. The antioxidant performance of the nanocomposite material was studied against 2,2-diphenylpicrylhydrazyl. The results shown potential of the nanocomposite in photocatalytic and antioxidant activity giving quick, easy, and affordable alternative.