Efficient uranium removal by amidoxime functionalized graphitic carbon nitride and its potential mechanism.
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| Title: | Efficient uranium removal by amidoxime functionalized graphitic carbon nitride and its potential mechanism. |
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| Authors: | Li, Qi1 (AUTHOR), Wang, Jiaqi1 (AUTHOR), Hou, Hairui2 (AUTHOR), Wang, Min1 (AUTHOR), Yu, Shujun2 (AUTHOR) sjyu@ncepu.edu.cn, Xu, Huan3 (AUTHOR) huan.xu@aust.edu.cn, Fu, Dong1 (AUTHOR), Wang, Xiangxue1 (AUTHOR) xxwang@ncepu.edu.cn |
| Source: | Journal of Radioanalytical & Nuclear Chemistry. Jan2025, Vol. 334 Issue 1, p419-431. 13p. |
| Subjects: | Zeta potential, Complex ions, Nitrides, Sorption, Atmospheric temperature, Uranium |
| Abstract: | In this work, an amidoxime functionalized graphitic carbon nitride (g–C3N4–AO) was prepared by grafting amidoxime groups onto graphitic carbon nitride (g–C3N4). The results of the kinetic and isotherm studies conducted on g–C3N4–AO indicate it exhibits rapid sorption kinetics by achieving equilibrium in 30 min with a homogeneous surface which performed a maximum sorption capacity of 67.1 mg g−1. The zeta potential values of the g–C3N4–AO are between 35 to − 44.3 mV in the pH range of 2.0–11.0. It was further observed that it complexes with uranium ions, which act as bidentate ligands, utilizing the lone pairs on O and N atoms. The empirical evidence strongly suggests that the utilization of g–C3N4–AO in uranium water remediation can be a promising solution. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | In this work, an amidoxime functionalized graphitic carbon nitride (g–C3N4–AO) was prepared by grafting amidoxime groups onto graphitic carbon nitride (g–C3N4). The results of the kinetic and isotherm studies conducted on g–C3N4–AO indicate it exhibits rapid sorption kinetics by achieving equilibrium in 30 min with a homogeneous surface which performed a maximum sorption capacity of 67.1 mg g−1. The zeta potential values of the g–C3N4–AO are between 35 to − 44.3 mV in the pH range of 2.0–11.0. It was further observed that it complexes with uranium ions, which act as bidentate ligands, utilizing the lone pairs on O and N atoms. The empirical evidence strongly suggests that the utilization of g–C3N4–AO in uranium water remediation can be a promising solution. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 02365731 |
| DOI: | 10.1007/s10967-024-09848-1 |
