Radiation-induced degradation of aqueous 2,3-dihydroxynaphthalene |
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| Affiliation: | 1. Department of Chemical and Proess Engineering, Warsaw University of Technology, Warynskiego 1, 00645 Warsaw, Polen;2. International Atomic Energy Agency, Wagramer Str. 5, P.O. Box 100, A-1400 Vienna, Austria;3. Ludwig Boltzmann Institute for Radiation Chemistry and Radiation Biology, c/o The University, Althanstr. 14, A-1090 Vienna, Austria;1. Institute of Microanalytical Systems, Department of Chemistry, Zhejiang University, Hangzhou 310058, China;2. Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, China;1. Sapienza, University of Rome, Department of Astronautical, Electrical and Energy Engineering, Nuclear Section – C.so Vittorio Emanuele II, 244, 00186 Rome, Italy;2. Idaho National Laboratory, 2525 Fremont Avenue, Idaho Falls, ID 83415, United States;1. School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, China;2. Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou 213164, China;3. Jiangnan Graphene Research Institute, Changzhou 213164, China;4. College of Chemistry and Chemical Engineering, Hunan University of Arts and Science, Changde 415000, China;5. Micro/Nano Science and Technology Center, Jiangsu University, Zhenjiang 212013, China;6. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;1. Department of Physics, Mar Ivanios College, Thiruvananthapuram, 695015, India;2. Department of Chemistry, Mar Ivanios College, Thiruvananthapuram, 695015, India;1. Laboratory of Environmental Engineering, Department of Process Engineering, Faculty of Engineering, Badji Mokhtar – Annaba University, P.O. Box 12, 23000 Annaba, Algeria;2. Laboratory of Environmental Process Engineering, Department of Chemical Engineering, Faculty of Process Engineering, University of Constantine 3, 25000 Constantine, Algeria;3. Department of Chemistry, Dr. Moulay Tahar – Saida University, 20000 Saida, Algeria |
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| Abstract: | The degradation of aqueous 2,3-dihydroxynaphthaline (2,3-DHN) under the influence of γ-ray was investigated under various experimental conditions. Using 2.5×10−5 mol L−1 2,3-DHN in aerated media (pH=6–6.8) an initial degradation yield, Gi-(2,3-DHN)=0.32 was obtained, whereas in solutions saturated with N2O the yield come to Gi-(2,3-DHN)=0.50.In airfree media the substrate decomposition was negligible. Possible reaction mechanisms are presented.Further, the rate constant, k(OH+2,3-DHN)=2.14×1010 L mol−1 s−1 was determined by competition reactions with PNDA. |
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