Kinetics and
The aqueous degradation of Reactive Yellow 84 (RY84) by potassium peroxydisulfate (K2S2O8) has been studied in laboratory scale experiments. The effect of the initial concentrations of potassium peroxydisulfate and RY84, pH and temperature on RY84 degradation were also examined. Experimental data we...
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| Format: | Article |
| Language: | English |
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Springer
2016-11-01
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| Series: | Journal of Saudi Chemical Society |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1319610313000732 |
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| author | Mojtaba Ahmadi Jamshid Behin A. Reza Mahnam |
| author_facet | Mojtaba Ahmadi Jamshid Behin A. Reza Mahnam |
| author_sort | Mojtaba Ahmadi |
| collection | DOAJ |
| description | The aqueous degradation of Reactive Yellow 84 (RY84) by potassium peroxydisulfate (K2S2O8) has been studied in laboratory scale experiments. The effect of the initial concentrations of potassium peroxydisulfate and RY84, pH and temperature on RY84 degradation were also examined. Experimental data were analyzed using first and second-order kinetics. The degradation kinetics of RY84 of the potassium peroxydisulfate process followed the second-order reaction kinetics. These rate constants have an extreme values similar to of 9.493 mM−1min−1 at a peroxydisulfate dose of 4 mmol/L. Thermodynamic parameters such as activation (Ea) and Gibbs free energy (ΔG°) were also evaluated. The negative value of ΔGo and Ea shows the spontaneous reaction natural conditions and exothermic nature. |
| format | Article |
| id | doaj-art-05908a94e709480a8338ce8bad68aa85 |
| institution | Kabale University |
| issn | 1319-6103 |
| language | English |
| publishDate | 2016-11-01 |
| publisher | Springer |
| record_format | Article |
| series | Journal of Saudi Chemical Society |
| spelling | doaj-art-05908a94e709480a8338ce8bad68aa852025-08-20T03:54:28ZengSpringerJournal of Saudi Chemical Society1319-61032016-11-0120664465010.1016/j.jscs.2013.07.004Kinetics andMojtaba Ahmadi0Jamshid Behin1A. Reza Mahnam2Chemical Engineering Department, Faculty of Engineering, Razi University, Kermanshah, IranChemical Engineering Department, Faculty of Engineering, Razi University, Kermanshah, IranChemical Engineering Department, Faculty of Engineering, Shahrood Branch Islamic Azad, IranThe aqueous degradation of Reactive Yellow 84 (RY84) by potassium peroxydisulfate (K2S2O8) has been studied in laboratory scale experiments. The effect of the initial concentrations of potassium peroxydisulfate and RY84, pH and temperature on RY84 degradation were also examined. Experimental data were analyzed using first and second-order kinetics. The degradation kinetics of RY84 of the potassium peroxydisulfate process followed the second-order reaction kinetics. These rate constants have an extreme values similar to of 9.493 mM−1min−1 at a peroxydisulfate dose of 4 mmol/L. Thermodynamic parameters such as activation (Ea) and Gibbs free energy (ΔG°) were also evaluated. The negative value of ΔGo and Ea shows the spontaneous reaction natural conditions and exothermic nature.http://www.sciencedirect.com/science/article/pii/S1319610313000732KineticsThermodynamicsDegradationReactive Yellow 84Potassium peroxydisulfate |
| spellingShingle | Mojtaba Ahmadi Jamshid Behin A. Reza Mahnam Kinetics and Journal of Saudi Chemical Society Kinetics Thermodynamics Degradation Reactive Yellow 84 Potassium peroxydisulfate |
| title | Kinetics and |
| title_full | Kinetics and |
| title_fullStr | Kinetics and |
| title_full_unstemmed | Kinetics and |
| title_short | Kinetics and |
| title_sort | kinetics and |
| topic | Kinetics Thermodynamics Degradation Reactive Yellow 84 Potassium peroxydisulfate |
| url | http://www.sciencedirect.com/science/article/pii/S1319610313000732 |
| work_keys_str_mv | AT mojtabaahmadi kineticsand AT jamshidbehin kineticsand AT arezamahnam kineticsand |