• photo-fenton like degradation of tetrabromobisphenol a with graphenesingle bondbifeo3 composite as a catalyst

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 672
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     graphenesingle bondbifeo3 nanoscaled composites were prepared with a sol–gel method and evaluated as highly efficient photo-fenton like catalyst under visible light irradiation. the graphenesingle bondbifeo3 composite had a specific surface area of 35.07 m2 g−1, being considerably larger than that of bifeo3 nanoparticles (7.50 m2 g−1). the composite exhibited excellent visible light-fenton like catalysis activity, being influenced by calcination temperature, graphene content and solution ph value. under optimal conditions with visible light irradiation, the graphenesingle bondbifeo3 composite yielded fast degradation of tetrabromobisphenol a with a apparent rate constant of 1.19 min−1, which was 5.43 and 3.68 folds of that achieved by using bifeo3 and the mixture of bifeo3 and graphene, respectively. the significantly enhanced visible light-fenton like catalytic properties of the graphenesingle bondbifeo3 composite in comparison with that of bifeo3 was attributed to a large surface area, much increased adsorption capacity and the strong electron transfer ability of graphene in the composite.

سوال خود را در مورد این مقاله مطرح نمایید :

با انتخاب دکمه ثبت پرسش، موافقت خود را با قوانین انتشار محتوا در وبسایت تی پی بین اعلام می کنم