Fast and high amount of U(VI) uptake by functional magnetic carbon nanotubes with phosphate group
In the present study, PZS-TPP/CNT/Fe3O4 was fabricated by carbon nantubes (CNTs) with polyphosphazene and magnetic particles for application in U(VI) removal. The structure of the synthesized composite was characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/140057 |
| _version_ | 1826124565923758080 |
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| author | Liu, Yan Zhao, Zhengping Yuan, Dingzhong Wang, Yun Dai, Ying Chew, Jia Wei |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Liu, Yan Zhao, Zhengping Yuan, Dingzhong Wang, Yun Dai, Ying Chew, Jia Wei |
| author_sort | Liu, Yan |
| collection | NTU |
| description | In the present study, PZS-TPP/CNT/Fe3O4 was fabricated by carbon nantubes (CNTs) with polyphosphazene and magnetic particles for application in U(VI) removal. The structure of the synthesized composite was characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), a vibrating sample magnetometer (VSM), and X-ray photoelectron spectroscopy (XPS). Studies of the effects of pH values, U(VI) concentration, contact time, and adsorption temperature including competing ions and reusability to the uranium adsorption were conducted. The calculated qmax from the Langmuir model was 606.06 mg/g. The possible mechanism was investigated by XPS about the uranium-adsorbed PZS-TPP/CNT/Fe3O4, which revealed that the adsorption capacity was mainly due to the coordination ability of phosphoryl groups and nitrogen atoms in the polyphosphazene skeleton. This new material is promising for separation and safe disposal of radionuclides in water. |
| first_indexed | 2024-10-01T06:22:24Z |
| format | Journal Article |
| id | ntu-10356/140057 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:22:24Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1400572020-05-26T05:55:30Z Fast and high amount of U(VI) uptake by functional magnetic carbon nanotubes with phosphate group Liu, Yan Zhao, Zhengping Yuan, Dingzhong Wang, Yun Dai, Ying Chew, Jia Wei School of Chemical and Biomedical Engineering Singapore Membrane Technology Centre Engineering::Chemical engineering Uranium Adsorption In the present study, PZS-TPP/CNT/Fe3O4 was fabricated by carbon nantubes (CNTs) with polyphosphazene and magnetic particles for application in U(VI) removal. The structure of the synthesized composite was characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), a vibrating sample magnetometer (VSM), and X-ray photoelectron spectroscopy (XPS). Studies of the effects of pH values, U(VI) concentration, contact time, and adsorption temperature including competing ions and reusability to the uranium adsorption were conducted. The calculated qmax from the Langmuir model was 606.06 mg/g. The possible mechanism was investigated by XPS about the uranium-adsorbed PZS-TPP/CNT/Fe3O4, which revealed that the adsorption capacity was mainly due to the coordination ability of phosphoryl groups and nitrogen atoms in the polyphosphazene skeleton. This new material is promising for separation and safe disposal of radionuclides in water. 2020-05-26T05:55:30Z 2020-05-26T05:55:30Z 2018 Journal Article Liu, Y., Zhao, Z., Yuan, D., Wang, Y., Dai, Y., & Chew, J. W. (2018). Fast and high amount of U(VI) uptake by functional magnetic carbon nanotubes with phosphate group. Industrial and Engineering Chemistry Research, 57(43), 14551-14560. doi:10.1021/acs.iecr.8b03864 0888-5885 https://hdl.handle.net/10356/140057 10.1021/acs.iecr.8b03864 2-s2.0-85055523637 43 57 14551 14560 en Industrial and Engineering Chemistry Research © 2018 American Chemical Society. All rights reserved. |
| spellingShingle | Engineering::Chemical engineering Uranium Adsorption Liu, Yan Zhao, Zhengping Yuan, Dingzhong Wang, Yun Dai, Ying Chew, Jia Wei Fast and high amount of U(VI) uptake by functional magnetic carbon nanotubes with phosphate group |
| title | Fast and high amount of U(VI) uptake by functional magnetic carbon nanotubes with phosphate group |
| title_full | Fast and high amount of U(VI) uptake by functional magnetic carbon nanotubes with phosphate group |
| title_fullStr | Fast and high amount of U(VI) uptake by functional magnetic carbon nanotubes with phosphate group |
| title_full_unstemmed | Fast and high amount of U(VI) uptake by functional magnetic carbon nanotubes with phosphate group |
| title_short | Fast and high amount of U(VI) uptake by functional magnetic carbon nanotubes with phosphate group |
| title_sort | fast and high amount of u vi uptake by functional magnetic carbon nanotubes with phosphate group |
| topic | Engineering::Chemical engineering Uranium Adsorption |
| url | https://hdl.handle.net/10356/140057 |
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