Kinetics of photoelectrocatalytic degradation of endocrine disrupting chemicals using sulfur-doped TiO₂/Ti photoelectrodes

In this study, sulfur-doped TiO₂/Ti photoelectrodes were prepared by anodization. The morphology, crystalline structure, composition of sulfur-doped TiO₂/Ti film and light absorption property were examined by SEM, XRD, XRF, XPS and UV/VIS respectively. Dimethyl phthalate(DMP), one kind of environmental disrupting chemicals(EDCs), was degraded by the optimized photoelectrodes. Power of xenon light, initial concentration of DMP, photoelectrocatalytic(PEC) area of photoelectrode and bias were investigated in the study on kinetics of PEC degradation of DMP. Hence, this study concluded that the optimum conditions were power of xenon light 150 W, initial concentration of DMP 1 mg/L, PEC area of sulfur-doped TiO₂/Ti photoelectrode 10 cm², bias 1.3 V in the PEC reaction system.