Plasma and Fusion Research
Volume 14, 3406071 (2019)
Regular Articles
- Happy Science University, 4427-1 Hitotsumatsu-Hei, Chosei, Chiba 299-4325, Japan
- 1)
- University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
- 2)
- Kyushu University, Fukuoka 812-8581, Japan
Abstract
The advanced oxidation of 2, 4 - dinitrophenol (DNP), 2, 5 - DNP, and 3, 4 - DNP in aqueous solution has been investigated using a multi-gas, dielectric barrier discharge, and the degradation was measured by high performance liquid chromatography (HPLC). The acceleration of the advanced-oxidation has been investigated by the combination of the anion exchange polymer. The degradation pathway was suggested involving a rapid detachment of the nitro group followed by a slow opening of the aromatic-ring. The hydroxyl radical and the excited hydroxyl anion are responsible for the primary attack of the DNP with the production of dihydroxy-nitrobenzenes. The attack of hydroxyl radical occurs at the benzene ring carbon activated by the presence of a phenolic OH group and a nitro group. The reaction is dominated by a pseudo-first order kinetic reaction. The degradation process is interpreted using Molecular Orbital Theory.
Keywords
dielectric barrier discharge, aromatic compound, dinitrophenol, advanced oxidation, molecular orbital theory, advanced oxidation
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References
- [1] S. Kojima, K. Katayama-Hirayama and T. Akitsu, World Journal of Engineering and Technology 4, 423 (2016). http://DOI.ORG/10.4236/wjet.2016.43042/
- [2] P. Lukes and B.R. Locke, Industrial and Engineering Chemistry Research, 44(9), 2921 (2005). https://DOI.ORG/10.1021/ie0491342
- [3] Biomedical CAChe 6.0 Users Guide, 2003, Fujitsu.
- [4] K. Somekawa, Molecular Orbital Calculation of Organic Molecules and the Application, (Kyushu University Press, Fukuoka, Japan, 2013) ISBN 978-4-7985-0089-8.
- [5] PUBCHEM https://pubchem.ncbi.nlm.nih.gov/compound/3_4-dinitrophenol#section=2D-Structu