【摘 要】
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Magnetically recyclable photocatalysts with efficient performances under visible light were synthesized by combining Fe3O4/ZnO with BiOI and polyaniline (PANI).
【机 构】
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Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, P.O.Box 179, Ardabil,
论文部分内容阅读
Magnetically recyclable photocatalysts with efficient performances under visible light were synthesized by combining Fe3O4/ZnO with BiOI and polyaniline (PANI).The FT-IR,XRD,HRTEM,SEM,EDX,XPS,UV-vis DRS,VSM,BET,and PL instruments were utilized for characterization of the as-prepared products.The activity tests exhibited that the superior rate constant in photocatalytic performance was achieved over the Fe3O4/ZnO/BiOI/ PANI (20％) nanocomposite,which enhanced for more than 59.9,10.0,and 6.57 times,as compared to those of the Fe3O4/ZnO,Fe3O4/ZnO/PANI,and Fe3O4/ZnO/BiOI photocatalysts in degradation of RhB,respectively.Successful photocatalytic degradations of MO/MB and photo reduction of Cr (Ⅵ) were also investigated to confirm the potential application of the photocatalyst in removal of various pollutants.The considerably enhanced activity pointed to a promoting effect of p-n-p heterojunctions formed between PANI,ZnO,and BiOI,and improved textural characteristics,which are benefit for improvement of the photocatalytic performances.
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