Lead recovery from aqueous environment by using porous carbon of citrus fruits waste: equilibrium,kinetics and thermodynamic studies |
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| Authors: | Gülbahar Akkaya Say??l? Hasan Say??l? Cumali Y?lmaz Fuat Güzel |
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| Affiliation: | 1. Department of Chemistry, Faculty of Education, Dicle University , Diyarbak?r, Turkey gb.akkaya@gmail.com;3. Department of Petroleum and Natural Gas Engineering, Faculty of Engineering and Architecture, Batman University , Batman, Turkey  https://orcid.org/0000-0003-4900-8268;4. Department of Chemistry, Institute of Science and Technology, Dicle University , Diyarbakir, Turkey;5. Department of Chemistry, Faculty of Education, Dicle University , Diyarbak?r, Turkey |
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| Abstract: | ABSTRACT The mixture of citrus fruits (orange, grapefruit, mandarin, and lemon) wastes was utilized to obtain high surface area activated carbon (AC) by H3PO4 activation. The production conditions were optimized and the optimum conditions were determined. The optimal-activated carbon (CFWAC) was characterized by various physicochemical techniques. CFWAC was also used as a sorbent for Pb (II) ions from water. Batch experiments were performed to explore the adsorption capacity and mechanism. The Langmuir isotherm and pseudo-second-order kinetic model showed good fitness to the experimental data. The maximum Pb (II) adsorption capacity of CFWAC was found to be 163.93 mg/g. |
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| Keywords: | Activated carbon citrus fruits waste lead adsorption characterization wastewater treatment |
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![ORCID Icon]({"type":"image","src":"/templates/jsp/images/orcid.png"} "ORCID Icon")
https://orcid.org/0000-0003-4900-8268;4. Department of Chemistry, Institute of Science and Technology, Dicle University , Diyarbakir, Turkey;5. Department of Chemistry, Faculty of Education, Dicle University , Diyarbak?r, Turkey