From Radioactive Effluent to Drinking Water: Efficient Removal of Trace 99TcO4−/ReO4− by Cationic Porous Aromatic Framework
Abstract Efficient removal of 99TcO4− from radioactive effluents while recovering drinking water remains a challenge. Herein, an excellent ReO4− (a nonradioactive surrogate of 99TcO4−) scavenger is presented through covalently bonding imidazolium poly(ionic liquids) polymers with an ionic porous aro...
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2025-03-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202414604 |
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| author | Long‐Sheng Pang Xiangjun Liao Chao‐Yue Zhao Cheng‐Peng Li Zhong Liu Shengqian Ma |
| author_facet | Long‐Sheng Pang Xiangjun Liao Chao‐Yue Zhao Cheng‐Peng Li Zhong Liu Shengqian Ma |
| author_sort | Long‐Sheng Pang |
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| description | Abstract Efficient removal of 99TcO4− from radioactive effluents while recovering drinking water remains a challenge. Herein, an excellent ReO4− (a nonradioactive surrogate of 99TcO4−) scavenger is presented through covalently bonding imidazolium poly(ionic liquids) polymers with an ionic porous aromatic framework (iPAF), namely iPAF‐P67, following an adsorption‐site density‐addition strategy. It shows rapid sorption kinetics, high uptake capacity, and exceptional selectivity toward ReO4−. Notably, the residual concentration of TcO4−/ReO4− in the radioactive wastewater after iPAF‐P67 treatment is as low as 0.046 ppb, fully meeting the drinking water standards of World Health Organization (WHO, 0.159 ppb) and United States Environmental Protection Agency (U.S. EPA, 0.053 ppb). Density functional theory (DFT) calculations show that the imidazolium groups in iPAF‐P67 provide stronger electrostatic interactions and higher binding energies between iPAF‐P67 and TcO4− anions, leading to its superior adsorption performance. Furthermore, the scale‐up synthesized iPAF‐P67 materials are shaped with polyethersulfone (PES) to fabricate PAF‐P67/PES beads and nanofibers via phase inversion method and electrospinning technique, respectively. Both composites demonstrate outstanding ultra‐purification abilities toward ReO4− to meet the WHO criteria even after multiple dynamic adsorption/desorption cycles. This work develops a design strategy for adsorbents applicable in the sequestration of low‐concentration radioactive pollutants. |
| format | Article |
| id | doaj-art-be420e9a5bf6476487f133be5b073567 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-be420e9a5bf6476487f133be5b0735672025-08-20T03:24:44ZengWileyAdvanced Science2198-38442025-03-01129n/an/a10.1002/advs.202414604From Radioactive Effluent to Drinking Water: Efficient Removal of Trace 99TcO4−/ReO4− by Cationic Porous Aromatic FrameworkLong‐Sheng Pang0Xiangjun Liao1Chao‐Yue Zhao2Cheng‐Peng Li3Zhong Liu4Shengqian Ma5College of Chemistry Tianjin Key Laboratory of Structure and Performance for Functional Molecules Tianjin Normal University Tianjin 300387 ChinaCollege of Chemistry Tianjin Key Laboratory of Structure and Performance for Functional Molecules Tianjin Normal University Tianjin 300387 ChinaNingbo Key Laboratory of Agricultural Germplasm Resources Mining and Environmental Regulation College of Science and Technology Ningbo University Ningbo Zhejiang 315300 ChinaCollege of Chemistry Tianjin Key Laboratory of Structure and Performance for Functional Molecules Tianjin Normal University Tianjin 300387 ChinaKey Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources Qinghai Provincial Key Laboratory of Resources and Chemistry of Salt Lakes Qinghai Institute of Salt Lakes Chinese Academy of Sciences Xining Qinghai 810008 ChinaDepartment of Chemistry University of North Texas1508 W Mulberry St Denton TX 76201 USAAbstract Efficient removal of 99TcO4− from radioactive effluents while recovering drinking water remains a challenge. Herein, an excellent ReO4− (a nonradioactive surrogate of 99TcO4−) scavenger is presented through covalently bonding imidazolium poly(ionic liquids) polymers with an ionic porous aromatic framework (iPAF), namely iPAF‐P67, following an adsorption‐site density‐addition strategy. It shows rapid sorption kinetics, high uptake capacity, and exceptional selectivity toward ReO4−. Notably, the residual concentration of TcO4−/ReO4− in the radioactive wastewater after iPAF‐P67 treatment is as low as 0.046 ppb, fully meeting the drinking water standards of World Health Organization (WHO, 0.159 ppb) and United States Environmental Protection Agency (U.S. EPA, 0.053 ppb). Density functional theory (DFT) calculations show that the imidazolium groups in iPAF‐P67 provide stronger electrostatic interactions and higher binding energies between iPAF‐P67 and TcO4− anions, leading to its superior adsorption performance. Furthermore, the scale‐up synthesized iPAF‐P67 materials are shaped with polyethersulfone (PES) to fabricate PAF‐P67/PES beads and nanofibers via phase inversion method and electrospinning technique, respectively. Both composites demonstrate outstanding ultra‐purification abilities toward ReO4− to meet the WHO criteria even after multiple dynamic adsorption/desorption cycles. This work develops a design strategy for adsorbents applicable in the sequestration of low‐concentration radioactive pollutants.https://doi.org/10.1002/advs.202414604deep purificationionic liquidsperrhenatepertechnetateporous aromatic framework |
| spellingShingle | Long‐Sheng Pang Xiangjun Liao Chao‐Yue Zhao Cheng‐Peng Li Zhong Liu Shengqian Ma From Radioactive Effluent to Drinking Water: Efficient Removal of Trace 99TcO4−/ReO4− by Cationic Porous Aromatic Framework Advanced Science deep purification ionic liquids perrhenate pertechnetate porous aromatic framework |
| title | From Radioactive Effluent to Drinking Water: Efficient Removal of Trace 99TcO4−/ReO4− by Cationic Porous Aromatic Framework |
| title_full | From Radioactive Effluent to Drinking Water: Efficient Removal of Trace 99TcO4−/ReO4− by Cationic Porous Aromatic Framework |
| title_fullStr | From Radioactive Effluent to Drinking Water: Efficient Removal of Trace 99TcO4−/ReO4− by Cationic Porous Aromatic Framework |
| title_full_unstemmed | From Radioactive Effluent to Drinking Water: Efficient Removal of Trace 99TcO4−/ReO4− by Cationic Porous Aromatic Framework |
| title_short | From Radioactive Effluent to Drinking Water: Efficient Removal of Trace 99TcO4−/ReO4− by Cationic Porous Aromatic Framework |
| title_sort | from radioactive effluent to drinking water efficient removal of trace 99tco4 reo4 by cationic porous aromatic framework |
| topic | deep purification ionic liquids perrhenate pertechnetate porous aromatic framework |
| url | https://doi.org/10.1002/advs.202414604 |
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