| Autor: |
Peter Osei Boamah, Jacqueline Onumah, Tayari Salifu, John Hendrick Essel, Benjamin Apam |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Carbohydrate Polymer Technologies and Applications, Vol 8, Iss , Pp 100611- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2666-8939 |
| DOI: |
10.1016/j.carpta.2024.100611 |
| Popis: |
This study aimed to remove lithium from a water-based mixture using a low molecular weight chitosan derivative (LMWCHT-LA-GLA). Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), and Nuclear Magnetic Resonance (NMR) spectroscopy were used to assess the sorbent. Lithium sorption capabilities were enhanced by LMWCHT-LA-GLA's functional groups OH, NH2, and COOH. The initial concentration, sorbent dosage and pH had the biggest effects on sorption efficiency. At the ideal initial lithium content of 1 mg/L, sorbent quantity of 0.10 g and solution pH of 6, the percentage of removal was 62.75 %. The analysis of variance (ANOVA) revealed that the initial lithium concentration contributed the largest percentage (94.10 %) to the removal efficiency. Utilizing the Freundlich, Temkin and Langmuir sorption models, the experimental data were examined. The experimental data and the Langmuir isotherm agreed fairly well with a maximum sorption capacity of 7.00 mg/g. Pseudo-first- and pseudo-second-order kinetic models were used to analyze the kinetic data obtained at the optimal initial concentration. The pseudo-second-order model provided a good fit to the experimental data. Thermodynamic studies were used to determine the kind of lithium sorption. Overall results suggested that LMWCHT-LA-GLA is a promising sorbent for the removal of lithium from aqueous solution. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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