Green synthesis of Zn-doped TIO2 nanoparticles from Zanthoxylum armatum

Abstract

Green synthesis is an easy, safe, and environmentally beneficial nanoparticle creation method. It is a great challenge to simultaneously improve the capping and stabilizing agent carrier separation efficiency of photocatalysts. Herein, Zn-doped Titanium dioxide (TiO₂) nanoparticles with high exposure of 360 nm using a UV/visible spectrophotometer were prepared via a one-step hydrothermal decomposition method. A detailed analysis reveals that the electronic structures were modulated by Zn doping; thus, the responsive wavelength was extended to 600 nm, which effectively improved the visible light absorption of TiO₂. We have optimized the different parameters like concentration, time, and temperature. The peak for TiO₂ is located at 600 cm-¹ in FTIR. A scanning electron microscope revealed that TiO₂ has a definite shape and morphology. The synthesized Zn-doped TiO₂NPs were applied against various pathogens to study their anti-bacterial potentials. The anti-bacterial activity of Zn-doped TiO₂ has shown robust against two gram-ve bacteria (Salmonella and Escherichia coli) and two gram + ve bacteria (Staphylococcus epidermidis and Staphylococcus aureus). Synthesized Zn-doped TiO₂ has demonstrated strong antifungal efficacy against a variety of fungi. Moreover, doping TiO₂ nanoparticles with metal oxide greatly improves their characteristics; as a result, doped metal oxide nanoparticles perform better than doped and un-doped metal oxide nanoparticles. Compared to pure TiO₂, Zn-doped TiO₂ nanoparticles exhibit considerable applications including antimicrobial treatment and water purification.