LIANG Daxin, ZHANG Jubo, ZHENG Kai, et al. Solvothermal synthesis of magnetic Fe3O4 nanospheres and the optimization of the photo-Fenton reaction performance[J]. 2017, 49(8): 2017-8.
LIANG Daxin, ZHANG Jubo, ZHENG Kai, et al. Solvothermal synthesis of magnetic Fe3O4 nanospheres and the optimization of the photo-Fenton reaction performance[J]. 2017, 49(8): 2017-8.DOI: 10.11918/j.issn.0367-6234.201701056.
In order to study photo-Fenton performance of Fe3O4 nanospheres
monodispersed Fe3O4 nanospheres with a mean diameter of 200 nm were successfully synthesized by a solvothermal method at 200 ℃. As-synthesized Fe3O4 nanospheres show excellent photo-Fenton efficiency on the degradation of methylene blue(MB)
and the degradation rate was over 95%. Besides
the catalyst was easy to recycle with only a piece of magnet
and the recovery rate can be more than 85%. Moreover
the catalyst can be regenerated with the ultrasonic treatment
and the degradation performance almost remains unchanged. In addition
the degradation efficiency varies with the amount of hydrogen peroxide applied and the pH value of the reaction system. After intensive investigation
the reaction efficiency performs best with 15 mL hydrogen peroxide added in acid atmosphere.