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

Xuefeng Shi; Shanyu Quan; Linmei Yang; Guimei Shi; Fanian Shi

doi:10.1016/j.chemosphere.2018.12.045

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

Chemosphere. 2019 Mar:219:914-922. doi: 10.1016/j.chemosphere.2018.12.045. Epub 2018 Dec 6.

Authors

Xuefeng Shi¹, Shanyu Quan², Linmei Yang¹, Guimei Shi¹, Fanian Shi³

Affiliations

¹ Department of Physics, School of Science, Shenyang University of Technology, Shenyang 110870, PR China.
² Department of Physics, School of Science, Shenyang University of Technology, Shenyang 110870, PR China. Electronic address: shyquan@sut.edu.cn.
³ Department of Chemistry, School of Science, Shenyang University of Technology, Shenyang 110870, PR China. Electronic address: shifn@sut.edu.cn.

PMID: 30572240
DOI: 10.1016/j.chemosphere.2018.12.045

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.

Keywords: Bismuth ferrite; CO3O4; Catalytic reduction; Hydrothermal and impregnation; Nitrophenol isomers.

MeSH terms

Catalysis
Isomerism
Nanocomposites / chemistry*
Nitrophenols / chemistry*

Substances

Nitrophenols