An investigation into the removal of microplastics from water using ferrofluids

Fionn Ferreira, Ireland 16-18

This project investigates a new method for the extraction of microplastics from water using ferrofluid, a nontoxic magnetic liquid that consists of oil and magnetite (iron oxide powder). In the presence of water, the ferrofluid attracts the microplastics because of the nonpolar properties of both. I investigated this extraction method on 10 different types of microplastics. The concentration of plastics before and after was measured using a homebuilt spectrometer and a microscope. The results supported my hypothesis of 85% extraction.

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