Removal of U(VI) by Micrococcus aloeverae: condition, kinetic and mechanism studies
The ecological and environmental implications arising from the release of uranium during nuclear industry and mining activities are subject to considerable apprehension. Employing microbial agents for uranium remediation offers a promising and efficient alternative to tackle soil or wastewater conta...
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Elsevier
2025-01-01
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| Series: | Results in Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715625000025 |
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| author | Xingming Gao Mengmei Ye Wenxin Li Yong Lu Lingzhi Bao |
| author_facet | Xingming Gao Mengmei Ye Wenxin Li Yong Lu Lingzhi Bao |
| author_sort | Xingming Gao |
| collection | DOAJ |
| description | The ecological and environmental implications arising from the release of uranium during nuclear industry and mining activities are subject to considerable apprehension. Employing microbial agents for uranium remediation offers a promising and efficient alternative to tackle soil or wastewater contamination caused by uranium. In this work, we successfully isolated and identified a highly uranium-tolerant strain GX01, identified as Micrococcus aloeverae, from soil samples collected at a uranium mining site. The state, kinetics and mechanism of U(VI) removal by Micrococcus aloeverae were then investigated. The strain demonstrated both biotransformation and biosorption ability to U(VI), with an excellent removal capacity of 123 mg/g for U(VI) at pH 6.0. The involvement of carboxyl, amide, and amine groups in the biosorption processes was determined by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis. Kinetic and isothermal studies demonstrated that the biosorption of U(VI) by Micrococcus aloeverae followed a pseudo-second order mode and Langmuir model. These results initially established Micrococcus aloeverae as an idea candidate for radionuclide removal. |
| format | Article |
| id | doaj-art-140f167dd70f4a42a8db31b25f34a4f3 |
| institution | Kabale University |
| issn | 2211-7156 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj-art-140f167dd70f4a42a8db31b25f34a4f32025-01-29T05:00:58ZengElsevierResults in Chemistry2211-71562025-01-0113102019Removal of U(VI) by Micrococcus aloeverae: condition, kinetic and mechanism studiesXingming Gao0Mengmei Ye1Wenxin Li2Yong Lu3Lingzhi Bao4School of Public Health, Wannan Medical College, Wuhu 241002, China; School of Public Health, Qingdao University, Qingdao 266003, ChinaSchool of Public Health, Wannan Medical College, Wuhu 241002, China; School of Inspection, Wannan Medical College, Wuhu 241002, ChinaSchool of Public Health, Wannan Medical College, Wuhu 241002, ChinaSchool of Inspection, Wannan Medical College, Wuhu 241002, China; Corresponding authors.School of Public Health, Wannan Medical College, Wuhu 241002, China; Corresponding authors.The ecological and environmental implications arising from the release of uranium during nuclear industry and mining activities are subject to considerable apprehension. Employing microbial agents for uranium remediation offers a promising and efficient alternative to tackle soil or wastewater contamination caused by uranium. In this work, we successfully isolated and identified a highly uranium-tolerant strain GX01, identified as Micrococcus aloeverae, from soil samples collected at a uranium mining site. The state, kinetics and mechanism of U(VI) removal by Micrococcus aloeverae were then investigated. The strain demonstrated both biotransformation and biosorption ability to U(VI), with an excellent removal capacity of 123 mg/g for U(VI) at pH 6.0. The involvement of carboxyl, amide, and amine groups in the biosorption processes was determined by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis. Kinetic and isothermal studies demonstrated that the biosorption of U(VI) by Micrococcus aloeverae followed a pseudo-second order mode and Langmuir model. These results initially established Micrococcus aloeverae as an idea candidate for radionuclide removal.http://www.sciencedirect.com/science/article/pii/S2211715625000025Micrococcus aloeveraeU(VI)BiosorptionBiotransformation |
| spellingShingle | Xingming Gao Mengmei Ye Wenxin Li Yong Lu Lingzhi Bao Removal of U(VI) by Micrococcus aloeverae: condition, kinetic and mechanism studies Results in Chemistry Micrococcus aloeverae U(VI) Biosorption Biotransformation |
| title | Removal of U(VI) by Micrococcus aloeverae: condition, kinetic and mechanism studies |
| title_full | Removal of U(VI) by Micrococcus aloeverae: condition, kinetic and mechanism studies |
| title_fullStr | Removal of U(VI) by Micrococcus aloeverae: condition, kinetic and mechanism studies |
| title_full_unstemmed | Removal of U(VI) by Micrococcus aloeverae: condition, kinetic and mechanism studies |
| title_short | Removal of U(VI) by Micrococcus aloeverae: condition, kinetic and mechanism studies |
| title_sort | removal of u vi by micrococcus aloeverae condition kinetic and mechanism studies |
| topic | Micrococcus aloeverae U(VI) Biosorption Biotransformation |
| url | http://www.sciencedirect.com/science/article/pii/S2211715625000025 |
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