Oxidative degradation of dyes in water using Co2+/H2O2 and Co2+/peroxymonosulfate
Dye degradation using advanced oxidation processes with Co2+/H2O2 and Co2+/peroxymonosulfate (PMS) systems has been investigated. Two types of dyes, basic blue 9 and acid red 183, were employed. Several parameters affecting dye degradation such as Co2+, PMS, H2O2, and dye concentrations were investi...
| Main Authors: | , , |
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| Format: | Journal Article |
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Elsevier
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/44962 |
| _version_ | 1848757150114906112 |
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| author | Ling, Sie king Wang, Shaobin Peng, Y. |
| author_facet | Ling, Sie king Wang, Shaobin Peng, Y. |
| author_sort | Ling, Sie king |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Dye degradation using advanced oxidation processes with Co2+/H2O2 and Co2+/peroxymonosulfate (PMS) systems has been investigated. Two types of dyes, basic blue 9 and acid red 183, were employed. Several parameters affecting dye degradation such as Co2+, PMS, H2O2, and dye concentrations were investigated. The optimal ratio of oxidant (PMS, H2O2)/Co2+ for the degradation of two dyes was determined. It is found that dye decomposition is much faster in Co2+/PMS system than in Co2+/H2O2. For Co2+/H2O2, an optimal ratio of H2O2 to Co2+ at 6 is required for the maximum decomposition of the dyes. For Co2+/PMS, higher concentrations of Co2+ and PMS will increase dye degradation rate with an optimal ratio of 3, achieving 95% decolourisation. For basic blue 9, a complete decolourisation can be achieved in 5 min at 0.13 mM Co2+, 0.40 mM PMS and 7 mg/l basic blue 9 while the complete degradation of acid red 183 will be achieved at 30 min at 0.13 mM Co2+, 0.40 mM PMS and 160 mg/l of acid red 183. The degradation of acid red 183 follows the second-order kinetics. |
| first_indexed | 2025-11-14T09:23:31Z |
| format | Journal Article |
| id | curtin-20.500.11937-44962 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:23:31Z |
| publishDate | 2010 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-449622017-09-13T14:19:37Z Oxidative degradation of dyes in water using Co2+/H2O2 and Co2+/peroxymonosulfate Ling, Sie king Wang, Shaobin Peng, Y. Dye degradation using advanced oxidation processes with Co2+/H2O2 and Co2+/peroxymonosulfate (PMS) systems has been investigated. Two types of dyes, basic blue 9 and acid red 183, were employed. Several parameters affecting dye degradation such as Co2+, PMS, H2O2, and dye concentrations were investigated. The optimal ratio of oxidant (PMS, H2O2)/Co2+ for the degradation of two dyes was determined. It is found that dye decomposition is much faster in Co2+/PMS system than in Co2+/H2O2. For Co2+/H2O2, an optimal ratio of H2O2 to Co2+ at 6 is required for the maximum decomposition of the dyes. For Co2+/PMS, higher concentrations of Co2+ and PMS will increase dye degradation rate with an optimal ratio of 3, achieving 95% decolourisation. For basic blue 9, a complete decolourisation can be achieved in 5 min at 0.13 mM Co2+, 0.40 mM PMS and 7 mg/l basic blue 9 while the complete degradation of acid red 183 will be achieved at 30 min at 0.13 mM Co2+, 0.40 mM PMS and 160 mg/l of acid red 183. The degradation of acid red 183 follows the second-order kinetics. 2010 Journal Article http://hdl.handle.net/20.500.11937/44962 10.1016/j.jhazmat.2010.01.091 Elsevier restricted |
| spellingShingle | Ling, Sie king Wang, Shaobin Peng, Y. Oxidative degradation of dyes in water using Co2+/H2O2 and Co2+/peroxymonosulfate |
| title | Oxidative degradation of dyes in water using Co2+/H2O2 and Co2+/peroxymonosulfate |
| title_full | Oxidative degradation of dyes in water using Co2+/H2O2 and Co2+/peroxymonosulfate |
| title_fullStr | Oxidative degradation of dyes in water using Co2+/H2O2 and Co2+/peroxymonosulfate |
| title_full_unstemmed | Oxidative degradation of dyes in water using Co2+/H2O2 and Co2+/peroxymonosulfate |
| title_short | Oxidative degradation of dyes in water using Co2+/H2O2 and Co2+/peroxymonosulfate |
| title_sort | oxidative degradation of dyes in water using co2+/h2o2 and co2+/peroxymonosulfate |
| url | http://hdl.handle.net/20.500.11937/44962 |