The amount of reactive nitrogen in terrestrial and aquatic ecosystems has been increasing due to the intensive use of synthetic nitrogen-containing fertilizers and animal farming. This excess level of nitrogen causes significant environmental and health issues. Here, we present a practical approach to synthesize ion-exchange materials using emulsion polymerization and synthesize polymer networks with enhanced selectivity for nitrate adsorption from water resources. We designed and synthesized new para-vinyl crosslinkers, forming a nitrogen cage, and performed emulsion polymerization to create crosslinked polystyrene networks. We demonstrate enhanced nitrate entrapment and removal efficiency in a batch operation. Additionally, we illustrate the effect of packing, operating parameters, and regenerating of the adsorbents when used as packed materials in an ion-exchange column.

Fabrication of novel azo-linkage ion-exchange adsorbent based on green polymers for nitrate removal

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.