Development and physicochemical characterization of a new magnetic nanocomposite as an economic antibiotic remover |
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| Institution: | 1. Department of Chemistry, Faculty of Education, Dicle University, 21280 Diyarbak?r, Turkey;2. Department of Chemistry, Faculty of Science & Arts, Batman University, 72060 Batman, Turkey;1. University of Newcastle, UK;2. University of Warwick, UK;1. Key Laboratory of Microwave Remote Sensing, Chinese Academy of Sciences, Beijing 100190, PR China;2. Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, PR China;1. Faculty of Environment and Natural Resources, University of Technology, Viet Nam National University – Ho Chi Minh, Viet Nam;2. Viet Nam National University – Ho Chi Minh, Viet Nam;3. School of Civil and Environmental Engineering, University of Technology Sydney, Australia;1. NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 70000, Viet Nam;2. Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City 700000, Viet Nam;3. Viet Nam National University, Ho Chi Minh City 70000, Viet Nam;4. Institute for Environment and Resources, Ho Chi Minh City 700000, Viet Nam;5. Falcuty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 70000, Viet Nam;6. Department of Science and Technology of Ben Tre Province, 86000, Viet Nam;7. Key Laboratory of Advanced Waste Treatment Technology, Vietnam National University Ho Chi Minh (VNU-HCM), Linh Trung ward, Thu Duc District, Ho Chi Minh City 700000, Viet Nam |
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| Abstract: | Maghemite (?-Fe2O3) nanoparticles were impregnated to nanoporous carbon obtained from tomato waste (TWNC). The prepared magnetic composite (MTWNC) was characterized and used to remove tetracycline (TC) from water and then easily be separated from the medium by a magnetic technique. The morphologies and surface chemistries of both magnetic and non-magnetic nanoporous carbons were studied by FTIR, XRD, SEM, SEM-EDX, VSM, BET surface area, proximate and elemental analysis determinations. Batch adsorption studies were carried out and the effects of pH, initial TC concentration, adsorbent dose, ionic strength and temperature were investigated. The adsorption kinetics of TC on MTWNC could be expressed well by the pseudo-second order model, and sorption isotherms were described by Langmuir equation with maximum adsorption capacity of 60.60 mg/g at pH 4 and 50 °C. Thermodynamic parameters showed that the adsorption of TC onto MTWNC was feasible, spontaneous and endothermic. Furthermore, the recyclability of the adsorbent was tested with 0.01 M NaOH solution, and the results show that the synthesized composite adsorbent could be employed repeatedly in wastewater treatment. |
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| Keywords: | Nanoporous carbon Magnetic nanocomposite Tetracycline adsorption Tomato waste Regeneration Wastewater treatment |
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