Selective removal of Cd(II), As(III), Pb(II) and Cr(III) ions from water resources using novel 2-anthracene ammonium-based magnetic ionic liquids
| Autor: | Ahmed Abdi Hassan, Abdulkadir Tanimu, Saheed A. Ganiyu, Ibrahim Y. Yaagoob, Khalid Alhooshani |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Arabian Journal of Chemistry, Vol 15, Iss 10, Pp 104136- (2022) |
| Druh dokumentu: | article |
| ISSN: | 1878-5352 20908989 |
| DOI: | 10.1016/j.arabjc.2022.104136 |
| Popis: | Facile synthesis of two 2-anthracene ammonium-based magnetic ionic liquids (MILs), 2-anthracene ammonium tetrachloroferrate (III) ([2A-A]FeCl4) and 2-anthracene ammonium trichlorocobaltate (II) ([2A-A]CoCl3) was performed by protonation of 2-aminoanthracene, followed complexation with FeCl3/CoCl2. The MILs were tested in the adsorptive removal of Cd2+, As3+, Pb2+ and Cr3+ from water sources. Upon treatment with 10 mg dosage of MILs in 10 mL aqueous solution of 50 ppm each of Cd2+, As3+, Pb2+ and Cr3+, adsorption capacity (mg/g) in the range of 5.73–55.5 and 23.6–56.8 for [2A-A]FeCl4 and [2A-A]CoCl3 respectively were recorded. Thus, the optimization, kinetic and isotherms studies were conducted using the [2A-A]CoCl3 adsorbent. The [2A-A]CoCl3 was more effective in pH 7–9, and equilibrium adsorption was achieved after 60 min contact time. The adsorption process proceeded via the Pseudo-second order pathway and the Langmuir isotherm model is the best fit for the adsorption process (with qmax = 227 – 357 mg/g) of all the targeted metal ions. The [2A-A]CoCl3 adsorbent demonstrated practicality with large distribution and selectivity coefficients of the targeted ions, and up to six times regeneration. |
| Databáze: | Directory of Open Access Journals |
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