Ecofriendly Composite as a Promising Material for Highly-Performance Uranium Recovery from Different Solutions
The development of new materials based on biopolymers (as renewable resources) is substantial for environmental challenges in the heavy metal and radionuclide ions removal contaminations. Functionalization of chitosan with sulfonic groups was achieved for improving the uranium sorption, not only fro...
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MDPI AG
2022-08-01
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| Series: | Toxics |
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| Online Access: | https://www.mdpi.com/2305-6304/10/9/490 |
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| author | Mohammed F. Hamza Hanaa A. Abu Khoziem Mahmoud S. Khalafalla Walid M. Abdellah Doaa I. Zaki Khalid Althumayri Yuezhou Wei |
| author_facet | Mohammed F. Hamza Hanaa A. Abu Khoziem Mahmoud S. Khalafalla Walid M. Abdellah Doaa I. Zaki Khalid Althumayri Yuezhou Wei |
| author_sort | Mohammed F. Hamza |
| collection | DOAJ |
| description | The development of new materials based on biopolymers (as renewable resources) is substantial for environmental challenges in the heavy metal and radionuclide ions removal contaminations. Functionalization of chitosan with sulfonic groups was achieved for improving the uranium sorption, not only from slightly acidic leachate, but also for the underground water. The prepared hydrogel based on chitosan was characterized by series of analysis tools for structure elucidation as FTIR spectroscopy, textural properties using nitrogen adsorption method, pH<sub>PZC</sub> (by pH-drift method), thermogravimetric analysis (TGA), SEM, and SEM-EDX analyses. The sorption was performed toward uranium (VI) ions for adjustment of sorption performances. The optimum sorption was performed at pH 4 (prior to the precipitation pH). The total sorption was achieved within 25 min (relatively fast kinetics) and was fitted by pseudo-first order rate equation (PFORE) and resistance to intraparticle diffusion equation (RIDE). The maximum sorption capacity was around 1.5 mmol U g<sup>−1</sup>. The sorption isotherms were fitted by Langmuir and Sips equations. Desorption was achieved using 0.3 M HCl solution and the complete desorption was performed in around 15 min of contact. The sorption desorption cycles are relatively stable during 5 cycles with limit decreasing in sorption and desorption properties (around 3 ± 0.2% and 99.8 ± 0.1%, respectively). The sorbent was used for removal of U from acid leachate solution in mining area. The sorbent showed a highly performance for U(VI) removal, which was considered as a tool material for radionuclides removing from aquatic medium. |
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| language | English |
| last_indexed | 2024-03-09T22:20:09Z |
| publishDate | 2022-08-01 |
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| series | Toxics |
| spelling | doaj.art-61556f7445ae4f0b88ffa912655ebecf2023-11-23T19:15:00ZengMDPI AGToxics2305-63042022-08-0110949010.3390/toxics10090490Ecofriendly Composite as a Promising Material for Highly-Performance Uranium Recovery from Different SolutionsMohammed F. Hamza0Hanaa A. Abu Khoziem1Mahmoud S. Khalafalla2Walid M. Abdellah3Doaa I. Zaki4Khalid Althumayri5Yuezhou Wei6School of Nuclear Science and Technology, University of South China, Hengyang 421001, ChinaNuclear Materials Authority, POB 530, El-Maadi, Cairo 11728, EgyptNuclear Materials Authority, POB 530, El-Maadi, Cairo 11728, EgyptNuclear Materials Authority, POB 530, El-Maadi, Cairo 11728, EgyptNuclear Materials Authority, POB 530, El-Maadi, Cairo 11728, EgyptDepartment of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi ArabiaSchool of Nuclear Science and Technology, University of South China, Hengyang 421001, ChinaThe development of new materials based on biopolymers (as renewable resources) is substantial for environmental challenges in the heavy metal and radionuclide ions removal contaminations. Functionalization of chitosan with sulfonic groups was achieved for improving the uranium sorption, not only from slightly acidic leachate, but also for the underground water. The prepared hydrogel based on chitosan was characterized by series of analysis tools for structure elucidation as FTIR spectroscopy, textural properties using nitrogen adsorption method, pH<sub>PZC</sub> (by pH-drift method), thermogravimetric analysis (TGA), SEM, and SEM-EDX analyses. The sorption was performed toward uranium (VI) ions for adjustment of sorption performances. The optimum sorption was performed at pH 4 (prior to the precipitation pH). The total sorption was achieved within 25 min (relatively fast kinetics) and was fitted by pseudo-first order rate equation (PFORE) and resistance to intraparticle diffusion equation (RIDE). The maximum sorption capacity was around 1.5 mmol U g<sup>−1</sup>. The sorption isotherms were fitted by Langmuir and Sips equations. Desorption was achieved using 0.3 M HCl solution and the complete desorption was performed in around 15 min of contact. The sorption desorption cycles are relatively stable during 5 cycles with limit decreasing in sorption and desorption properties (around 3 ± 0.2% and 99.8 ± 0.1%, respectively). The sorbent was used for removal of U from acid leachate solution in mining area. The sorbent showed a highly performance for U(VI) removal, which was considered as a tool material for radionuclides removing from aquatic medium.https://www.mdpi.com/2305-6304/10/9/490uraniummetal decontaminationhydrogeluptake kineticssorption isothermsrecovery of heavy metal |
| spellingShingle | Mohammed F. Hamza Hanaa A. Abu Khoziem Mahmoud S. Khalafalla Walid M. Abdellah Doaa I. Zaki Khalid Althumayri Yuezhou Wei Ecofriendly Composite as a Promising Material for Highly-Performance Uranium Recovery from Different Solutions Toxics uranium metal decontamination hydrogel uptake kinetics sorption isotherms recovery of heavy metal |
| title | Ecofriendly Composite as a Promising Material for Highly-Performance Uranium Recovery from Different Solutions |
| title_full | Ecofriendly Composite as a Promising Material for Highly-Performance Uranium Recovery from Different Solutions |
| title_fullStr | Ecofriendly Composite as a Promising Material for Highly-Performance Uranium Recovery from Different Solutions |
| title_full_unstemmed | Ecofriendly Composite as a Promising Material for Highly-Performance Uranium Recovery from Different Solutions |
| title_short | Ecofriendly Composite as a Promising Material for Highly-Performance Uranium Recovery from Different Solutions |
| title_sort | ecofriendly composite as a promising material for highly performance uranium recovery from different solutions |
| topic | uranium metal decontamination hydrogel uptake kinetics sorption isotherms recovery of heavy metal |
| url | https://www.mdpi.com/2305-6304/10/9/490 |
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