The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Oxidation of Triclosan by Permanganate (Mn(VII)): Importance of Ligands and In Situ Formed Manganese Oxides
Abstract
Experiments were conducted to examine permanganate (Mn(VII); KMnO(4)) oxidation of the widely used biocide triclosan (one phenolic derivative) in aqueous solution at pH values of 5-9. Under slightly acidic conditions, the reactions displayed autocatalysis, suggesting the catalytic role of in situ formed MnO(2). This was further supported by the promoting effects of the addition of preformed MnO(2) colloids on Mn(VII) oxidations of triclosan and two other selected phenolics (i.e., phenol and 2,4-dichlorophenol), as well as p-nitrophenol which otherwise showed negligible reactivity toward Mn(VII) and MnO(2) colloids, respectively. Surprisingly, phosphate buffer significantly enhanced Mn(VII) oxidation of triclosan, as well as phenol and 2,4-dichlorophenol over a wide pH range. Further, several other selected ligands (i.e., pyrophosphate, EDTA, and humic acid) also exerted oxidation enhancement, supporting a scenario where highly active aqueous manganese intermediates (Mn(INT)(aq)) formed in situ upon Mn(VII) reduction might be stabilized to a certain extent in the presence of ligands and subsequently involved in further oxidation of target phenolics, whereas without stabilizing agents Mn(INT)(aq) autodecomposes or disproportionates spontaneously. The effectiveness of Mn(VII) for the oxidative removal of triclosan in natural water and wastewater was confirmed. Their background matrices were also found to accelerate Mn(VII) oxidation of phenolics.
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Kolpin, D. W., Furlong, E. T., Meyer, M. T., Thurman, E. M., Zaugg, S. D., Barber, L. B., & Buxton, H. T. (2002) · Environmental Science & Technology · doi:10.1021/es011055j · Cited by 7,953
Formation of chloroform and chlorinated organics by free-chlorine-mediated oxidation of triclosan
Rule, K. L., Ebbett, V. R., & Vikesland, P. J. (2005) · Environmental Science & Technology · doi:10.1021/es048943+ · Cited by 293
Cited by
Sun, B., Guan, X., Fang, J., & Tratnyek, P. G. (2015) · Environmental Science & Technology · doi:10.1021/acs.est.5b03111 · Cited by 320
Metadata
- Authors
- Jiang, J., Pang, S.-Y., & Ma, J.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-09-30
- Volume
- 43
- Issue
- 21
- Pages
- 8326-8331
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W1980891839
- Cited by
- 252
- References
- 2
- FWCI
- 6.45
- Type
- journal article
- Language
- en
- Open access
- closed
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