Effect of potassium monopersulfate (oxone) and operating parameters on sonochemical degradation of cationic dye in an aqueous solution |
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| Institution: | 1. Department of Chemistry, Faculty of Sciences, University of Constantine, Algeria;2. Laboratoire de Rhéologie et Procédés, 1301 rue de la Piscine, Domaine Universitaire, BP 53, 38041 Grenoble cedex 9, France;1. State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China;2. State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University, Beijing 100084, PR China;1. Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi’an University of Architecture and Technology, Xi’an, 710055, PR China;2. Shaanxi Key Laboratory of Environmental Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, PR China;3. Institute of Innovational Education Research, School of Transportation and Environment, Shenzhen Institute of Information Technology, Shenzhen, 518172, PR China;1. Nanyang Environment and Water Research Institute (NEWRI), Interdisciplinary Graduate School (IGS), Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore 637141, Singapore;2. Division of Environmental and Water Resources Engineering, School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;3. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;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. Laboratoire Rhéologie et Procédés, Université Joseph Fourier, 38041 Grenoble cedex 9, France |
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| Abstract: | In this study, removal of Cresol Red (CR), a cationic triphenylmethane dye, by 300 kHz ultrasound was investigated. The effect of additive such as potassium monopersulfate (oxone) was studied. Additionally, sonolytic degradation of CR was investigated at varying power and initial pH. RC can be readily eliminated by the ultrasound process. The obtained results showed that. Sonochemical degradation of CR was strongly affected by ultrasonic power and pH. The degradation rate of the dye increased substantially with increasing ultrasonic power in the range of 20–80 W. This improvement could be explained by the increase in the number of active cavitation bubbles. The significant degradation was achieved in acidic conditions (pH = 2) where the color removal was 99% higher than those observed in higher pH aqueous solutions. The ultrasonic degradation of dye was enhanced by potassium monopersulfate (oxone) addition. It was found that the degradation of the dye was accelerated with increased concentrations of oxone for a reaction time of 75 min. |
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| Keywords: | Cresol Red Sonochemistry degradation Operational parameters Additive Water |
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