Phosphate-based fertilizers are in widespread use around the world to increase agricultural yields and sustain food production. Plants utilize only a fraction of the phosphate added to the soil, the excess is lost from agricultural fields through erosion and surface water runoffs and accumulates in waterways. The excess phosphate causes a rapid growth of algal blooms and low oxygen (hypoxic) zones affecting the entire aquatic ecosystem (eutrophication). To mitigate the effects of eutrophication, there is a need to develop technology that can remove phosphate from water bodies. This presentation will report a cerium-based metal-organic framework sorbent that has exceptional stability, high surface area, microporous structure, and the ability to bind strongly with phosphate through cerium nodes supported experimental results and DFT calculations. The work demonstrates for the first time the ability of this material to remove phosphates from water with a removal capacity of 168 mg/g in less than 4 minutes. The remarkable adsorption capacity and fast kinetics provide a significant improvement over the current state-of-the-art crystalline porous materials, and the conventionally used activated carbon. The study suggests that cerium-based metal-organic framework are highly effective and durable sorbents and can be used to develop next generation technologies to address challenges related to water eutrophication.

Rational design of cerium-based metal-organic framework for the efficient uptake of phosphate from water

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.