Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals
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 (FESE...
| Main Authors: | , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Elsevier BV
2014
|
| Online Access: | http://hdl.handle.net/20.500.11937/17788 |
| _version_ | 1848749558414180352 |
|---|---|
| author | Wang, Yuxian Sun, Hongqi Ang, Ming Tade, Moses Wang, Shaobin |
| author_facet | Wang, Yuxian Sun, Hongqi Ang, Ming Tade, Moses Wang, Shaobin |
| author_sort | Wang, Yuxian |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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 30 min. 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 deactivationof catalysts was investigated and their regeneration was also proposed. |
| first_indexed | 2025-11-14T07:22:51Z |
| format | Journal Article |
| id | curtin-20.500.11937-17788 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:22:51Z |
| publishDate | 2014 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-177882017-09-13T16:05:07Z Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals Wang, Yuxian Sun, Hongqi Ang, Ming Tade, Moses Wang, Shaobin 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 30 min. 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 deactivationof catalysts was investigated and their regeneration was also proposed. 2014 Journal Article http://hdl.handle.net/20.500.11937/17788 10.1016/j.cej.2014.02.013 Elsevier BV restricted |
| spellingShingle | Wang, Yuxian Sun, Hongqi Ang, Ming Tade, Moses Wang, Shaobin Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals |
| title | Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals |
| title_full | Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals |
| title_fullStr | Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals |
| title_full_unstemmed | Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals |
| title_short | Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals |
| title_sort | magnetic fe3o4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals |
| url | http://hdl.handle.net/20.500.11937/17788 |