Synthesis of CoFe2O4/C nano catalyst with excellent performance by molten salt method and its application in 4 nitrophenol reduction.
CoFe2O4/C nano sheets (NSs) have been synthesized by a facile molten salt method using cheap potassium fulvate as carbon source and sodium chloride as template. The morphology, crystallinity and composition of the materials were analyzed by TEM, XRD and XPS. The study on the catalytic performance of 4 nitrophenol (4 NP) shows that CoFe2O4/C 600 nano catalyst has the highest catalytic activity and the corresponding apparent constant is 1.91 min 1, this result is higher than that reported in most literatures. Catalytic kinetics of 4 NP reduction was studied in this article, and activation energy (Ea) was calculated to be 14.31 kJ mol 1. The catalyst also shows good cycle performance and stability. This convenient method provides a reference for the synthesis of MFe2O4/C and other nano metal oxides/C nanocomposite catalysts.
Environmental pollution