Co-SBA-15 for heterogeneous oxidation of phenol with sulfate radical for wastewater treatment
Mesoporous silica SBA-15 supported cobalt catalysts were prepared by co-condensation during SBA-15 synthesis, using three different Co(II) precursor salts, chloride (Cl), acetate (Ac) and nitrate (N). The physicochemical properties of the catalysts were characterized by several techniques, such as...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier BV
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/5149 |
| _version_ | 1848744715256594432 |
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| author | Shukla, Pradeep Sun, Hongqi Wang, Shaobin Ang, Ha Ming Tade, Moses |
| author_facet | Shukla, Pradeep Sun, Hongqi Wang, Shaobin Ang, Ha Ming Tade, Moses |
| author_sort | Shukla, Pradeep |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Mesoporous silica SBA-15 supported cobalt catalysts were prepared by co-condensation during SBA-15 synthesis, using three different Co(II) precursor salts, chloride (Cl), acetate (Ac) and nitrate (N). The physicochemical properties of the catalysts were characterized by several techniques, such as XRD, SEM (EDS), TEM, and FT-IR. It was found that Co3O4 was formed in SBA-15 and would effectively activate peroxymonosulfate to produce sulfate radicals for phenoloxidation in heterogeneous solutions. The Co precursors affected the physicochemical property, activity and stability of the catalysts. In heterogeneous reactions, the effects of catalyst loading, peroxymonosulfate concentration and reaction temperature on phenol degradation were investigated. The heterogeneousphenol degradation reactions followed zero order kinetics and the activation energies were 81.4, 67.4 and 67.4 kJ/mol for Co/SBA-15-Cl, Co/SBA-15-Ac, and Co/SBA-15-N, respectively. |
| first_indexed | 2025-11-14T06:05:52Z |
| format | Journal Article |
| id | curtin-20.500.11937-5149 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:05:52Z |
| publishDate | 2011 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-51492017-09-13T16:08:46Z Co-SBA-15 for heterogeneous oxidation of phenol with sulfate radical for wastewater treatment Shukla, Pradeep Sun, Hongqi Wang, Shaobin Ang, Ha Ming Tade, Moses Mesoporous silica SBA-15 supported cobalt catalysts were prepared by co-condensation during SBA-15 synthesis, using three different Co(II) precursor salts, chloride (Cl), acetate (Ac) and nitrate (N). The physicochemical properties of the catalysts were characterized by several techniques, such as XRD, SEM (EDS), TEM, and FT-IR. It was found that Co3O4 was formed in SBA-15 and would effectively activate peroxymonosulfate to produce sulfate radicals for phenoloxidation in heterogeneous solutions. The Co precursors affected the physicochemical property, activity and stability of the catalysts. In heterogeneous reactions, the effects of catalyst loading, peroxymonosulfate concentration and reaction temperature on phenol degradation were investigated. The heterogeneousphenol degradation reactions followed zero order kinetics and the activation energies were 81.4, 67.4 and 67.4 kJ/mol for Co/SBA-15-Cl, Co/SBA-15-Ac, and Co/SBA-15-N, respectively. 2011 Journal Article http://hdl.handle.net/20.500.11937/5149 10.1016/j.cattod.2011.03.005 Elsevier BV restricted |
| spellingShingle | Shukla, Pradeep Sun, Hongqi Wang, Shaobin Ang, Ha Ming Tade, Moses Co-SBA-15 for heterogeneous oxidation of phenol with sulfate radical for wastewater treatment |
| title | Co-SBA-15 for heterogeneous oxidation of phenol with sulfate radical for wastewater treatment |
| title_full | Co-SBA-15 for heterogeneous oxidation of phenol with sulfate radical for wastewater treatment |
| title_fullStr | Co-SBA-15 for heterogeneous oxidation of phenol with sulfate radical for wastewater treatment |
| title_full_unstemmed | Co-SBA-15 for heterogeneous oxidation of phenol with sulfate radical for wastewater treatment |
| title_short | Co-SBA-15 for heterogeneous oxidation of phenol with sulfate radical for wastewater treatment |
| title_sort | co-sba-15 for heterogeneous oxidation of phenol with sulfate radical for wastewater treatment |
| url | http://hdl.handle.net/20.500.11937/5149 |