دورية أكاديمية
A comprehensive study for the potential removal of 152+154 Eu radionuclides using a promising modified strontium-based MOF.
| العنوان: | A comprehensive study for the potential removal of 152+154 Eu radionuclides using a promising modified strontium-based MOF. |
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| المؤلفون: | Sheha RR; Nuclear Chem. Dept., Hot Lab Center, Egyptian Atomic Energy Authority, P. O. 13759, Cairo, Egypt. Electronic address: rsheha68@yahoo.com., Sheta SM; Inorganic Chemistry Department, National Research Centre, 33 El-Behouth St., Dokki, Giza, 12622, Egypt. Electronic address: dr.sheta.nrc@gmail.com., Hamouda MA; Chemistry Department, Faculty of Science, Helwan University, Ain Helwan, Cairo, 11795, Egypt., El-Sheikh SM; Nanomaterials and Nanotechnology Department, Central Metallurgical R & D Institute, Cairo, 11421, Egypt., Kandil AT; Chemistry Department, Faculty of Science, Helwan University, Ain Helwan, Cairo, 11795, Egypt., Ali OI; Chemistry Department, Faculty of Science, Helwan University, Ain Helwan, Cairo, 11795, Egypt. |
| المصدر: | Journal of environmental radioactivity [J Environ Radioact] 2023 Dec; Vol. 270, pp. 107287. Date of Electronic Publication: 2023 Sep 05. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Applied Science Publishers Country of Publication: England NLM ID: 8508119 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1700 (Electronic) Linking ISSN: 0265931X NLM ISO Abbreviation: J Environ Radioact Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Barking, Essex : Elsevier Applied Science Publishers, |
| مواضيع طبية MeSH: | Radiation Monitoring* , Water Pollutants, Chemical*/chemistry, Strontium/analysis ; Adsorption ; Radioisotopes ; Thermodynamics ; Kinetics ; Hydrogen-Ion Concentration |
| مستخلص: | A facile modification of a strontium-based MOF using oxalic acid was carried out to prepare MTSr-OX MOF, which was used as a potential substance for eliminating 152+154 Eu radioisotopes. Various analytical techniques were used to characterize MTSr-OX-MOF. The prepared MOF had a rod-like structure with a BET surface area of 101.55 m 2 g -1 . Batch sorption experiments were used to investigate the sorption performance of MTSr-OX-MOF towards 152+154 Eu radionuclides where different parameters like pH, contact time, initial 152+154 Eu concentration, ionic strength, and temperature were scrutinized to determine the optimum conditions for 152+154 Eu removal. MTSr-OX-MOF showed superior effectiveness in the elimination of 152+154 Eu with a maximum sorption capacity of 234.72 mg g -1 at pH 3.5. Kinetics fitted with the pseudo-second-order model and the Langmuir model correctly described the sorption mechanism. The thermodynamic variables were carefully examined, demonstrating that the 152+154 Eu sorption was endothermic as well as spontaneous. The MTSr-OX-MOF has been found to be a significantly more effective sorbent towards 152+154 Eu than that of many other adsorbents. When applied to real active waste, MTSr-OX-MOF demonstrated excellent removal performance for a wide range of radionuclides. As a result, the MTSr-OX-MOF can be recognized as an attractive solution for the 152+154 Eu purification from active waste. Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2023 Elsevier Ltd. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Claimed changes; Europium; Functionalization; Radionuclides; Removal; Strontium-based MOF |
| المشرفين على المادة: | YZS2RPE8LE (Strontium) 0 (Radioisotopes) 0 (Water Pollutants, Chemical) |
| تواريخ الأحداث: | Date Created: 20230907 Date Completed: 20231127 Latest Revision: 20231127 |
| رمز التحديث: | 20231127 |
| DOI: | 10.1016/j.jenvrad.2023.107287 |
| PMID: | 37677908 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-1700 |
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| DOI: | 10.1016/j.jenvrad.2023.107287 |