Effects of phosphorus and cobalt co-doped anatase titania on the degradation of orange ii and antibacterial activity of staphylococcus aureus & salmonella typhi in visible light

The increasing demand for water and declining supply has made the photocatalytic treatment and recycle of industrial effluents an attractive option. The discharge of orange II (azo-dye) into the environment causes water pollution due to its colour, toxicity, mutagenicity and carcinogenicity. Phosphorus and cobalt codoped TiO2 nanomaterial was successfully prepared by single step sol–gel method by doping different weight percentages of dopants concentrations into TiO2 lattice. The co-doped TiO2 samples were characterized to confirm the structural and morphological changes in TiO2 crystal lattice by using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX), Transmission Electron Microscopy (TEM), UV-Visible Diffuse Reflectance Spectroscopy (UV-vis.DRS), X-ray Photo electron spectroscopy (XPS), Brunauer-Emmmett-Teller surface area analyzer (BET) and Fourier Transform Infrared Spectroscopy (FT-IR). The characterization results revealed that all the codoped samples show anatase phase, nanoparticle (5.8nm) and narrow band gap(2.54eV). These results enhances the photocatylytic activity of co-doped anatase titania in visible light for the degradation of orange II dye with in 35 min and antibacterial activity on Staphylococcus aureus & Salmonella typhi in 180 min.