Photocatalytic Performance of a Novel Sr-Ce-TiO2/HAp for Degradation of Methylene Blue Dye in the Presence of Visible Light

Abstract In this study, Sr-Ce-TiO2/HAp as a novel and efficient nanocomposite was synthesized and characterized by Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), scanning electron microscopy (SEM), and surface area determination of porous using the Brunauer–Emmett–Teller (BET) method and degradation of methylene blue under visible radiation was investigated. Evaluations showed that doped with metal cations and the presence of hydroxyapatite reduced energy gap, increased surface area, increased adsorption and decreased electron-hole recombination. The results also showed that more than 92% of methylene blue was removed within 100 min. The pseudo-first order reaction synthetic was obtained.