| Sonocatalytic performance of CuO-PET for efficient degradation of RB-5 dye in water matrix: Kinetics and Mechanisms |
| کد مقاله : 1306-IWWA |
| نویسندگان |
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کبری ایاغ1، مهسا طاهرگورابی2، مهدی شیرزاد سیبنی *3 1Department of Environmental Health Engineering, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
Department of Environmental Health Engineering, School of Health, Guilan University of Medical Sciences, Rasht, Iran 2Department of Environmental Health Engineering, Sirjan School of Medical Sciences, Sirjan, Iran 3Research Center of Health and Environment, Guilan University of Medical Sciences, Rasht, Iran; mshirzadsiboni@yahoo.com, mshirzadsiboni@gums.ac.ir. Department of Environmental Health Engineering, School of Health, Guilan University of Medical Sciences, Rasht, Iran |
| چکیده مقاله |
| During the last few decades, the establishment of new industries to improve life standard has also introduced to human beings’ huge number of different toxic and hazardous materials including dyes, antibiotics, heavy metals, etc. The presence of these substances in the environment has threatened human health. Therefore, the purpose of this research, was to investigation the synthesis of CuO-PET nanocomposite and its efficiency in the sonocatalytic removal of reactive black 5 (RB5) from aquatic solutions. A convenient co-precipitation method was utilized for stabilization of CuO nanoparticles on PET. The prepared CuO-PET was characterized by XRD, FT-IR, SEM, EDX-map and pHPZC techniques. The effect of parameters such as catalyst dosage, initial pH, initial RB5 concentration, hydrogen peroxide, oxygen and nitrogen gases, organic compounds, anions and radical scavengers were investigated on the removal efficiency of mentioned pollutant by US/CuO-PET system. The residual concentration of RB5 was measured by using a spectrophotometer (UV/Vis, DR 5000) at a wavelength of 597 nm. Under optimum conditions, i.e., initial RB5 concentration= 20 mg L-1, initial pH= 3 and catalyst amount= 0.6 g L-1, about 90.71 RB5 removal was achieved by US/CuO-PET process after 60 min. The experiments data in this study, was well described with first-order kinetic model. The low amount of electrical energy per order consumption (EEO) and operational cost (OC) in US/CuO-PET system was revealed this process is highly feasible and economic comparing with other processes (US/CuO, US/PET and US). Six cycle experiments confirmed that the CuO-PET propounded a satisfied stability. |
| کلیدواژه ها |
| Sonocatalytic, CuO-PET, Reactive Black 5, Kinetic. |
| وضعیت: پذیرفته شده برای ارائه شفاهی |
