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Title: | Chemically Robust Cationic Porous Organic Polymer (POP) for Selective Detection and Removal of ReO4- as a Surrogate of Radioactive 99TcO4- |
Authors: | BISWAS, KISHALAY DAM, GOURAB K. MAHANTA, SUPRITI ROY, ANIRBAN Parmar, Saurabh Vinod Avasare, Vidya GHOSH, SUJIT K Dept. of Chemistry |
Keywords: | Chemically robust Cationic porous organic polymer Sequestration Sensing Isothermal titration calorimetry 2025-JAN-WEEK1|TOC-JAN-2025 2024 |
Issue Date: | Dec-2024 |
Publisher: | Wiley |
Citation: | Chemistry—A European Journal |
Abstract: | The efficient removal of 99TcO4− from alkaline nuclear waste is vital for optimizing nuclear waste management and safeguarding the environment. However, current state-of-the-art sorbent materials are constrained by their inability to simultaneously achieve high alkali resistance, rapid adsorption kinetics, large adsorption capacity, and selectivity. In this study, we synthesized a urea-rich cationic porous organic polymer, IPM-403, which demonstrates exceptional chemical stability, ultrafast kinetics (~92 % removal within 30 seconds), high adsorption capacity (664 mg/g), excellent selectivity, along with multiple-cycle recyclability (up to 7 cycles), making it highly promising for the removal of ReO4− (surrogate of 99TcO4−) from nuclear wastewater. Notably, after exposure to 1 M NaOH solution for 24 hours, IPM-403 maintained a high adsorption capacity of 421.3 mg/g for ReO4−. Furthermore, IPM-403 acts as an efficient sensor for ReO4−, exhibiting a turn-on response and a detection limit as low as 78.8 ppb. |
URI: | https://doi.org/10.1002/chem.202403931 http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/9278 |
ISSN: | 1521-3765 0947-6539 |
Appears in Collections: | JOURNAL ARTICLES |
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