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Removal and Degradation of Microplastics Using the Magnetic and Nanozyme Activities of Bare Iron Oxide Nanoaggregates

Description: Removal and degradation of microplastics are often carried out separately. In this work, hydrophilic bare Fe3O4 nanoaggregates allowed efficient removal of the most common microplastics including high-density polyethylene, polypropylene, polyvinyl chloride, polystyrene, and polyethylene terephthalate. Full extraction was achieved using Fe3O4 at 1% of the mass of microplastics. Hydrogen bonding is the main force for the adsorption of Fe3O4. Unlike the more commonly used hydrophobically modified Fe3O4 nanoparticles, the bare Fe3O4 benefitted from the peroxidase-like activity of its exposed surface, enabling further catalytic degradation of microplastics with nearly 100% efficiency and easy recovery of the Fe3O4.
Notes: Associated publication: Removal and Degradation of Microplastics Using the Magnetic and Nanozyme Activities of Bare Iron Oxide Nanoaggregates
Item exited embargo and became publicly available on 2022-12-31
Authors: Zandieh, Mohamad; University of Waterloo; ORCID iD 0000-0001-9560-6184
Liu, Juewen; University of Waterloo; ORCID iD 0000-0001-5918-9336
Keywords: microplastics
iron oxide nanoparticles
nanozymes
water treatment
plastic degradation
Field of Research: 
Chemical sciences
>
Analytical chemistry
>
Separation science
Publication Date: 2022-12-31
Publisher: Federated Research Data Repository / dépôt fédéré de données de recherche
Funder: Natural Sciences and Engineering Research Council of Canada; Alliance Grants - Plastics Science for a Cleaner Future program; ALLRP 558435–20
URI: https://doi.org/10.20383/103.0645
Related Identifiers: 
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Appears in Collections:Water Institute

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Creative Commons Public Domain Dedication (CC0 1.0) https://creativecommons.org/publicdomain/zero/1.0/
Citation
Zandieh, M., Liu, J. (2022). Removal and Degradation of Microplastics Using the Magnetic and Nanozyme Activities of Bare Iron Oxide Nanoaggregates. Federated Research Data Repository. https://doi.org/10.20383/103.0645