Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals

Yuxian Wang; Hongqi Sun; Ha Ming Ang; Moses O. Tadé; Shaobin Wang

doi:10.1016/j.cej.2014.02.013

Magnetic Fe₃O₄/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals

Yuxian Wang, Hongqi Sun, Ha Ming Ang, Moses O. Tadé, Shaobin Wang

Research output: Contribution to journal › Article › peer-review

154 Citations (Scopus)

Abstract

Magnetic carbon nanospheres (Fe₃O₄/CS core/shell) and their supported Co₃O₄ nanoparticles were synthesized using a novel one-step hydrothermal method followed by heat treatment. The nanocomposites were characterized by powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and N₂ sorption isotherms. The catalytic properties of the nanocomposites in activating Oxone® for oxidation of phenol solution were investigated. Fe₃O₄/CS supported Co₃O₄ nanoparticles exhibited high activity in Oxone® activation for phenol degradation with 100% conversion within 30min. Phenol degradation was found to follow the first order kinetics. The nanoparticles also displayed good water dispersion and magnetic separation under the magnetic field. The deactivation of catalysts was investigated and their regeneration was also proposed.

Original language	English
Pages (from-to)	1-9
Number of pages	9
Journal	Chemical Engineering Journal
Volume	245
DOIs	https://doi.org/10.1016/j.cej.2014.02.013
Publication status	Published - 1 Jun 2014
Externally published	Yes

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10.1016/j.cej.2014.02.013

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@article{c8d0dabc25c44eb28dac64b2bdb3235e,

title = "Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals",

abstract = "Magnetic carbon nanospheres (Fe3O4/CS core/shell) and their supported Co3O4 nanoparticles were synthesized using a novel one-step hydrothermal method followed by heat treatment. The nanocomposites were characterized by powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and N2 sorption isotherms. The catalytic properties of the nanocomposites in activating Oxone{\textregistered} for oxidation of phenol solution were investigated. Fe3O4/CS supported Co3O4 nanoparticles exhibited high activity in Oxone{\textregistered} activation for phenol degradation with 100% conversion within 30min. Phenol degradation was found to follow the first order kinetics. The nanoparticles also displayed good water dispersion and magnetic separation under the magnetic field. The deactivation of catalysts was investigated and their regeneration was also proposed.",

keywords = "Cobalt catalyst, Magnetic separation, Phenol, Sulfate radicals, Wastewater",

author = "Yuxian Wang and Hongqi Sun and Ang, {Ha Ming} and Tad{\'e}, {Moses O.} and Shaobin Wang",

year = "2014",

month = jun,

day = "1",

doi = "10.1016/j.cej.2014.02.013",

language = "English",

volume = "245",

pages = "1--9",

journal = "Chemical Engineering Journal",

issn = "1385-8947",

publisher = "Elsevier Science & Technology",

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TY - JOUR

T1 - Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals

AU - Wang, Yuxian

AU - Sun, Hongqi

AU - Ang, Ha Ming

AU - Tadé, Moses O.

AU - Wang, Shaobin

PY - 2014/6/1

Y1 - 2014/6/1

N2 - Magnetic carbon nanospheres (Fe3O4/CS core/shell) and their supported Co3O4 nanoparticles were synthesized using a novel one-step hydrothermal method followed by heat treatment. The nanocomposites were characterized by powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and N2 sorption isotherms. The catalytic properties of the nanocomposites in activating Oxone® for oxidation of phenol solution were investigated. Fe3O4/CS supported Co3O4 nanoparticles exhibited high activity in Oxone® activation for phenol degradation with 100% conversion within 30min. Phenol degradation was found to follow the first order kinetics. The nanoparticles also displayed good water dispersion and magnetic separation under the magnetic field. The deactivation of catalysts was investigated and their regeneration was also proposed.

AB - Magnetic carbon nanospheres (Fe3O4/CS core/shell) and their supported Co3O4 nanoparticles were synthesized using a novel one-step hydrothermal method followed by heat treatment. The nanocomposites were characterized by powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and N2 sorption isotherms. The catalytic properties of the nanocomposites in activating Oxone® for oxidation of phenol solution were investigated. Fe3O4/CS supported Co3O4 nanoparticles exhibited high activity in Oxone® activation for phenol degradation with 100% conversion within 30min. Phenol degradation was found to follow the first order kinetics. The nanoparticles also displayed good water dispersion and magnetic separation under the magnetic field. The deactivation of catalysts was investigated and their regeneration was also proposed.

KW - Cobalt catalyst

KW - Magnetic separation

KW - Phenol

KW - Sulfate radicals

KW - Wastewater

UR - http://www.scopus.com/inward/record.url?scp=84894296140&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2014.02.013

DO - 10.1016/j.cej.2014.02.013

M3 - Article

AN - SCOPUS:84894296140

SN - 1385-8947

VL - 245

SP - 1

EP - 9

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

ER -

Magnetic Fe₃O₄/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals

Abstract

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