Preparation of bismuth ferrite and its photo-Fenton degradation of wastewater
Using Fe(NO3)3∙9H2O and Bi(NO3)3∙5H2O as raw materials,bismuth ferrite was synthesized by hydrothermal method,and the samples were characterized by XRD and SEM.The photodegradation perfor-mance of bismuth ferrite on wastewater was studied by using the photofenton method with the COD and ani-line of wastewater as indexes.The effects of initial pH,the amount of bismuth ferrite,the amount of H2O2 and the way of addition on the photolysis performance of bismuth ferrite were investigated.The results showed that when the initial pH was 3 and the amount of bismuth ferrite was more than 50 mg/mL,the amount of H2O2 was more than 1 mL/50 mL(0.5 mL/50 mL),the removal effects of COD and aniline were both good.The effect of batch addition of H2O2 for COD was better than that of single addition of H2O2 for aniline.
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