| Autor: |
Lucía Blanco, Oscar Martínez-Rico, Ángeles Domínguez, Begoña González |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Water Resources and Industry, Vol 29, Iss , Pp 100195- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2212-3717 |
| DOI: |
10.1016/j.wri.2022.100195 |
| Popis: |
An alternative chitosan-based adsorbent modified by impregnation with deep eutectic solvent (DES) choline-chloride:urea at a molar ratio 1:2 proved efficient removal of the anthraquinone dye Acid Blue 80 (AB80) from aqueous solutions, and offered enhanced adsorption capacity compared to the starting materials. The adsorption was mainly affected by initial AB80 concentration, adsorbent dosage, contact time, and slightly influenced by temperature (25–45 °C), and pH (3.5–10). The pseudo-second-order kinetic model fitted the experimental data, and pseudo-first order model fitted as well at the highest AB80 concentration, 250 mg/L. The experimental data agreed with the Langmuir isotherm model, with a maximum adsorption capacity of 61.64 mg/g at 35 °C. The process was exothermic above 100 mg/L of dye and spontaneous up to 200 mg/L (T |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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