An eco-friendly process: Predictive modelling of copper adsorption from aqueous solution on Spirulina platensis |
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| Authors: | Abuzer Çelekli Mehmet Yavuzatmaca Hüseyin Bozkurt |
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| Affiliation: | 1. Department of Biology, Faculty of Art and Science, University of Gaziantep, 27310, Gaziantep, Turkey;2. Department of Biology, Faculty of Art and Science, University of Abant ?zzet Baysal, 14280, Bolu, Turkey;3. Department of Food Engineering, Faculty of Engineering, University of Gaziantep, 27310, Gaziantep, Turkey;1. State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China;2. Department of Chemical and Materials Engineering, College of Engineering, Tunghai University, Taichung, Taiwan;3. School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, PR China;4. Department of Chemical Engineering, National Cheng Kung University, Tainan, 701, Taiwan;1. Department of Natural Resources Management and Agricultural Engineering, Agricultural University of Athens, Iera Odos 75, Athens 11855, Greece;2. Department of Biology, Faculty of Art and Science, University of Gaziantep, Gaziantep 27310, Turkey;3. Department of Food Engineering, Faculty of Engineering, University of Gaziantep, Gaziantep 27310, Turkey;1. Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam;2. Burdur Mehmet Akif Ersoy University, Faculty of Arts and Science, Chemistry Department, 15100 Burdur, Turkey;3. VNU University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi, Vietnam;4. Institute of Environmental Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam;5. Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil;6. Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam;7. Department of Environmental Engineering, National Ilan University, No. 1, Sec. 1, Shen-Lung Road, Yilan 26047, Taiwan;8. Department of Environmental Sciences, School of Agriculture and Environmental Sciences, University of South Africa (UNISA), P. O. Box 392, Florida, 1710, South Africa;9. Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseodaero, Yuseong-Gu, Daejeon 305-719, Republic of Korea;1. Department of Chemical Engineering & Materials Science, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, India;2. Department of Sciences, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, India |
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| Abstract: | The adsorption of copper ions on Spirulina platensis was studied as a function of contact time, initial metal ion concentration, and initial pH regimes. Characterization of this adsorbent was confirmed by FTIR spectrum. Modified Gompertz and Logistic models have not been previously applied for the adsorption of copper. Logistic was the best model to describe experimental kinetic data. This adsorption could be explained by the intra-particle diffusion, which was composed of more than one sorption processes. Langmuir, Freundlich, and Redlich–Peterson were fitted to equilibrium data models. According to values of error functions and correlation coefficient, the Langmuir and Redlich–Peterson models were more appropriate to describe the adsorption of copper ions on S. platensis. The monolayer maximum adsorption capacity of copper ions was determined as 67.93 mg g?1. Results indicated that this adsorbent had a great potential for removing of copper as an eco-friendly process. |
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