radical decomposition of 2,4-dinitrotoluene (dnt) at conditions of advanced oxidation. computational study

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ID: 246027
2016
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Abstract
At the present time one of the main remediation technologies for such environmental pollutant as 2,4-dinitrotoluene (DNT) is advanced oxidation processes (AOPs). Since hydroxyl radical is the most common active species for AOPs, in particular for Fenton oxidation, the study modeled mechanism of interaction between DNT and hydroxyl radical at SMD(Pauling)/M06-2X/6-31+G(d,p) level. Computed results allow to suggest the most energetically favourable pathway for the process. DNT decomposition consists of sequential hydrogen abstractions and hydroxyl attachments passing through 2,4-dinitrobenzyl alcohol, 2,4-dinitrobenzaldehyde, and 2,4-dinitrobenzoic acid. Further replacement of nitro- and carboxyl groups by hydroxyl leads to 2,4-dihydroxybenzoic acid and 2,4-dinitrophenol, respectively. Reaction intermediates and products are experimentally confirmed. Mostly of reaction steps have low energy barriers, some steps are diffusion controlled. The whole process is highly exothermic.
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sviatenko2016vsnikradical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Liudmyla K. Sviatenko;Leonid Gorb;Sergiy I. Okovytyy;Jerzy Leszczynski
Journal applied and environmental soil science
Year 2016
DOI
10.15421/081608
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