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Facile synthesis of magnetic Co3O4/BFO nanocomposite for effective reduction of nitrophenol isomers

Author:
Shi, Xuefeng, Quan, Shanyu, Yang, Linmei, Shi, Guimei, Shi, Fanian
Source:
Chemosphere 2019 v.219 pp. 914-922
ISSN:
0045-6535
Subject:
X-ray diffraction, X-ray photoelectron spectroscopy, adsorption, ambient temperature, borohydrides, catalysts, desorption, hot water treatment, isomers, magnetism, nanocomposites, nitrogen, nitrophenols, scanning electron microscopy, transmission electron microscopy
Abstract:
Co₃O₄/BiFeO₃ nanocomposite catalysts were synthesized by a facile hydrothermal method following the impregnation process. The nanocomposite was successfully characterized by powder X-ray diffraction(XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), nitrogen adsorption desorption isotherms and X-ray photoelectron spectroscopic (XPS) analysis.The as-synthesized Co₃O₄/BiFeO₃ nanocomposites were tested as a catalyst in the reduction of nitrophenol isomers with NaBH₄ at room temperature. The results indicate that the as-prepared Co₃O₄/BiFeO₃ nanocomposites are an efficient recyclable catalyst for the reduction of nitrophenol isomers. The reduction kinetics for all the reactions follows the pseudo-first order. The rate reduction of nitrophenols followed the order 3NP > 2NP > 4NP.
Agid:
6253616