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Dinh, Van-Phuc; Xuan, Tran Dong; Hung, Nguyen Quang; Luu, Thi-Thuy; Do, Thi-Thanh-Thao; Nguyen, Trinh Duy; Nguyen, Van-Dong; Anh, Tran Thi Kieu; Tran, Ngoc Quyen
Environmental science and pollution research international, 12/2021, Letnik: 28, Številka: 45Journal Article
The present work investigates the primary adsorption mechanisms of lead (II) and cadmium (II) cations onto pomelo fruit peel (PFP) from aqueous solution. pH, adsorption time, ion strength, and initial metal cation concentrations, which are factors affecting the uptake of these cations, are investigated. Results show that pH and ion strengths strongly affect the removal of these cations from aqueous solution. Different isotherm adsorption models, such as Langmuir, Freundlich, and Sips, are utilized to fit the experimental data in order to determine the adsorption in nature. The Langmuir monolayer adsorption capacities are found to be 47.18 mg/g for lead (II) and 13.35 mg/g for cadmium (II). Kinetic and thermodynamic studies based on a combination of FT-IR and TG-DSC spectroscopies demonstrate that electrostatic attraction plays a primary adsorption mechanism of lead (II) and cadmium (II) cations onto pomelo fruit peel.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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