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Allam EM, Lashen TA, Abou El-Enein SA, Hassanin MA, Sakr AK, Hanfi MY, Sayyed MI, Al-Otaibi JS, Cheira MF. Cetylpyridinium Bromide/Polyvinyl Chloride for Substantially Efficient Capture of Rare Earth Elements from Chloride Solution. Polymers (Basel) 2022; 14:polym14050954. [PMID: 35267777 PMCID: PMC8912479 DOI: 10.3390/polym14050954] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/17/2022] [Accepted: 02/24/2022] [Indexed: 12/04/2022] Open
Abstract
A new sorbent cetylpyridinium bromide/polyvinylchloride (CPB/PVC) was prepared and tested to extract rare earth elements (REEs) from their chloride solutions. It was identified by FTIR, TGA, SEM, EDX, and XRD. The impact of various factors such as pH, RE ion initial concentration, contacting time, and dose amount via sorption process was inspected. The optimum pH was 6.0, and the equilibrium contact time was reached at 60 min at 25 °C. The prepared adsorbent (CPB/PVC) uptake capacity was 182.6 mg/g. The adsorption of RE ions onto the CPB/PVC sorbent was found to fit the Langmuir isotherm as well as pseudo-second-order models well. In addition, the thermodynamic parameters of RE ion sorption were found to be exothermic and spontaneous. The desorption of RE ions from the loaded CPB/PVC sorbent was investigated. It was observed that the optimum desorption was achieved at 1.0 M HCl for 60 min contact time at ambient room temperature and a 1:60 solid: liquid phase ratio (S:L). As a result, the prepared CPB/PVC sorbent was recognized as a competitor sorbent for REEs.
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Affiliation(s)
- Eman M. Allam
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
- Correspondence: (E.M.A.); (M.F.C.)
| | - Taysser A. Lashen
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
| | - Saeyda A. Abou El-Enein
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Kom 32511, Egypt;
| | - Mohamed A. Hassanin
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
| | - Ahmed K. Sakr
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
| | - Mohamed Y. Hanfi
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
- Institute of Physics and Technology, Ural Federal University, St. Mira, 19, 620002 Yekaterinburg, Russia
| | - M. I. Sayyed
- Department of Nuclear Medicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University (IAU), P.O. Box 1982, Dammam 31441, Saudi Arabia;
- Department of Physics, Faculty of Science, Isra University, Amman 11622, Jordan
| | - Jamelah S. Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Mohamed F. Cheira
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
- Correspondence: (E.M.A.); (M.F.C.)
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