Removal of As(Ⅲ)by photocatalytic oxidation under BiOCl alkaline condition
A series of BiOCl semiconductor photocatalysts were prepared by adjusting the hydrothermal reaction time.The crystal structure,microstructure,spectral characteristics and chemical composition of the catalysts were systematically analyzed by means of X-ray diffraction,transmission electron microsco-py,UV-visible absorption spectroscopy and X-ray photoelectron spectroscopy.The photocatalytic conver-sion of As(Ⅲ)was achieved by BiOCl material prepared in the experiment under alkaline conditions.At the same time,the removal performance of As(Ⅲ)by BiOCl-8 at different pH values was studied.The results show that 0.5g·L-1 BiOCl-8 can completely remove 5 mg·L-1As(Ⅲ)from the solution within 30 min of illumination at initial pH=10.
NETL
NSTL
万方数据
