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Eissa ME, Sakr AK, Hanfi MY, Sayyed MI, Al-Otaibi JS, Abdel-Lateef AM, Cheira MF, Abdelmonem HA. Physicochemical investigation of mercury sorption on mesoporous thioacetamide/chitosan from wastewater. Chemosphere 2023; 341:140062. [PMID: 37689155 DOI: 10.1016/j.chemosphere.2023.140062] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/24/2023] [Accepted: 09/02/2023] [Indexed: 09/11/2023]
Abstract
Mercury is a toxic environmental element, so it was necessary to prepare a new, highly efficient, cheap sorbent to remove it. A mesoporous thioacetamide/chitosan (MTA/CS) was manufactured via a simplistic strategy; the chitin deacetylation to gain chitosan (CS) and the addition of thioacetamide. The as-prepared MTA/CS was characterized using X-ray diffraction, EDX, SEM, FTIR, and BET surface analysis. According to the findings, the MTA/CS was effectively synthesized. The removal behaviors of Hg2+ onto MTA/CS composite were inspected, which suggested that the MTA/CS composite exhibited great sorption properties for Hg2+ in liquid solutions. The maximal Hg2+ sorption capacity was 195 mg/g. The effects of temperature, Hg2+ concentration, contacting time, and MTA/CS concentration on sorption were analyzed. The 2nd-order model and Langmuir isotherm were suitable for the physicochemical adsorption processes. Thermodynamic analysis showed that the Hg2+ adsorption process onto the MTA/CS composite is exothermic and occurred spontaneously. The desorption condition of Hg2+ from its loaded MTA/CS was also gained. Likewise, the MTA/CS sorbent was undoubtedly regenerated by 0.8 M NaNO3 80 min contacting and 1:50 S:L ratio. The versatility and durability of MTA/CS sorbent were investigated via nine sorption-extraction cycles. The optimum parameters were applied to wastewater. Based on the result, the as-prepared MTA/CS might be a potential sorbent for removing Hg2+ from liquid solutions.
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Affiliation(s)
- Mohamed E Eissa
- College of Science, Chemistry Department, Al Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Kingdom of Saudi Arabia
| | - Ahmed K Sakr
- Department of Civil and Environmental Engineering, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI, 48202, USA.
| | - Mohamed Y Hanfi
- Ural Federal University, St. Mira, 19, 620002, Yekaterinburg, Russia; Nuclear Materials Authority, P.O. Box 530, El Maadi, Cairo, Egypt
| | - M I Sayyed
- Department of Physics, Faculty of Science, Isra University, Amman, 11622, Jordan; 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
| | - Jamelah S Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Ashraf M Abdel-Lateef
- Accelerations and Ion Sources Department, Central Laboratory for Elemental and Isotopic Analysis, NRC, Egyptian Atomic Energy Authority, Cairo, 13759, Egypt
| | - Mohamed F Cheira
- Nuclear Materials Authority, P.O. Box 530, El Maadi, Cairo, Egypt.
| | - Haeam A Abdelmonem
- Chemistry Department, Faculty of Women for Art, Science, And Education, Ain Shams University, Heliopolis, Cairo, 11757, Egypt
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