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Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/90E78EB9-010C-4DC9-A829-B99A99C015C7 | ||
| Year | 2007 | ||
| Type of Item | Peer-Reviewed Journal Publication | ||
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| Bibliographic Citation | O. Mihas, N. Kalogerakis, E.Psillakis , "Photolysis of 2,4-dinitrotoluene in various water solutions: effect of dissolved species ",J. of hazar. mat.,vol.146,no.3,pp.535-539,2007. doi:10.1016/j.jhazmat.2007.04.054 https://doi.org/10.1016/j.jhazmat.2007.04.054 | ||
| Appears in Collections |
This work investigates the photolysis of 2,4-dinitrotoluene (2,4-DNT) in the presence of different dissolved species. Initial experiments revealed that the direct photolysis of 2,4-DNT in deionized water solutions under sunlight and artificial light followed a pseudo-first order kinetic. Humic acids (HA) appeared to act as sensitizers in the aqueous photolysis of 2,4-DNT and the calculated half life was found to be approximately 2 h, which is faster than the half life calculated in the case of deionized water (∼4 h). The presence of salt (NaCl) in the deionized water solutions was found to have a more pronounced sensitizing effect upon the photolysis of 2,4-DNT, yielding half lives of the order of 1 h. Investigations on seawater and groundwater spiked with 2,4-DNT, revealed that photolysis is enhanced in the order seawater > groundwater∼deionized water.
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