Batch reactor kinetic studies on the reductive dechlorination of chlorinated ethylenes by tetrakis-(4-sulfonatophenyl)porphyrin cobalt
Barnett, BR; Evans, AL; Roberts, CC; Fritsch, JM
HERO ID
2127854
Reference Type
Journal Article
Year
2011
Language
English
PMID
| HERO ID | 2127854 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | Batch reactor kinetic studies on the reductive dechlorination of chlorinated ethylenes by tetrakis-(4-sulfonatophenyl)porphyrin cobalt |
| Authors | Barnett, BR; Evans, AL; Roberts, CC; Fritsch, JM |
| Journal | Chemosphere |
| Volume | 82 |
| Issue | 4 |
| Page Numbers | 592-596 |
| Abstract | Tetrakis-(4-sulfonatophenyl)porphyrin cobalt was identified as a highly-active reductive dechlorination catalyst for chlorinated ethylenes. Through batch reactor kinetic studies, degradation of chlorinated ethylenes proceeded in a step-wise fashion with the sequential replacement of Cl by H. For perchloroethylene (PCE) and trichloroethylene (TCE), the dechlorination products were quantified and the C₂ mass was accounted for. Degradation of the chlorinated ethylenes was found to be first-order in substrate. Dechlorination trials with increasing catalyst concentration showed a linearly increasing pseudo first-order rate constant which yielded rate laws for PCE and TCE degradation that are first-order in catalyst. The dechlorination activity of this catalyst was compared to that of another water-soluble cobalt porphyrin under the same reaction conditions and found to be comparable for PCE and TCE. |
| Doi | 10.1016/j.chemosphere.2010.11.015 |
| Pmid | 21131023 |
| Wosid | WOS:000286788300016 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Journal: ISSN: |
| Is Public | Yes |
| Language Text | English |
| Keyword | Chlorinated ethylenes; Reductive dechlorination; Cobalt porphyrin; Kinetic studies |