Abstract
Metal oxoanions adversely affect the food chain through bioaccumulation and biomagnification. Therefore, they are among the major freshwater contaminants that require immediate remediation. Although several adsorbents have been developed over the years for sequestering these micropollutants, the selective removal of oxoanions remains still a formidable challenge. Herein, pyridinium and triazine-based ionic porous organic polymer, iPOP-Cl, developed through a Brønsted acid-catalyzed aminal formation reaction, has been reported as a suitable anion exchange material for the selective removal of metal oxoanions from wastewater. The positively charged nitrogen centers, along with exchangeable chloride counter-ions in the porous polymer, allow facile oxoanion uptake. iPOP-Cl is found to be a selective scavenger of permanganate (MnO4 - ) and dichromate (Cr2 O7 2- ) from water in the presence of a high concentration of competing anions generally found in brackish water. The material exhibits fast sorption kinetics, a high uptake capacity (333mg g-1 for MnO4 - and 358mg g-1 for Cr2 O7 2- ), and excellent recyclability. This article is protected by copyright. All rights reserved.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
