The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
Kinetics and Mechanism of the Degradation and Mineralization of Acetone in Dilute Aqueous Solution Sensitized by the UV Photolysis of Hydrogen Peroxide
Abstract
Acetone is a significant pollutant in contaminated groundwaters and industrial effluents. It can be treated by the UV/H 2 O 2 process but only slowly. This study aims to understand the degradation mechanism and hence the reasons for slow treatment. The degradation of acetone was carried out in a UV reactor in the presence of ∼16 mM H 2 O 2 such that most of the UV was absorbed by H 2 O 2 . The decay of acetone was followed by gas chromatography, and the generation of intermediates (identified as acetic, formic, and oxalic acids) was followed by ion chromatography. Measurement of the total organic carbon indicated a complete carbon balance throughout the reaction ending in mineralization. A kinetic model, based on an assumed mechanism, was developed that generated a profile of reactants and intermediates in agreement with the experimental data, including the pH profile. The initial concentrations of acetone and hydrogen peroxide strongly affect the initial rate of acetone degradation, but no pH effect was observed in the range of 2−7. It is concluded that acetone treats slowly because intermediates build up to such a concentration that they compete significantly for hydroxyl radicals and also because the mechanism appears to involve some degree of acetone recycling.
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Cites
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THE FORMATION AND DECAY OF H2O3 AND HO2 IN ELECTRON-IRRADIATED AQUEOUS SOLUTIONS1
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Destruction of Halogenated Aliphatics by Ultraviolet Catalyzed Oxidation with Hydrogen Peroxide
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Cited by
A review of imperative technologies for wastewater treatment II: hybrid methods
Gogate, P. R., & Pandit, A. B. (2004) · Advances in Environmental Research · doi:10.1016/s1093-0191(03)00031-5 · Cited by 769
Transition metal/UV-based advanced oxidation technologies for water decontamination
Anipsitakis, G. P., & Dionysiou, D. D. (2004) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2004.05.025 · Cited by 606
Stefan, M. I., & Bolton, J. R. (1998) · Environmental Science & Technology · doi:10.1021/es970633m · Cited by 253
Self-citationDegradation of 4-nitrophenol (4-NP) using Fe–TiO2 as a heterogeneous photo-Fenton catalyst
Zhao, B., Mele, G., Pio, I., Li, J., Palmisano, L., & Vasapollo, G. (2010) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2009.11.066 · Cited by 194
Li, W., Jain, T., Ishida, K., & Liu, H. (2017) · Environmental Science: Water Research & Technology · doi:10.1039/c6ew00242k · Cited by 151
Metadata
- Authors
- Stefan, M. I., Hoy, A. R., & Bolton, J. R.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 1996-06-01
- Volume
- 30
- Issue
- 7
- Pages
- 2382-2390
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2017085680
- Cited by
- 273
- References
- 13
- FWCI
- 11.62
- Type
- journal article
- Language
- en
- Open access
- closed
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