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Recent advances in the application of magnetic Fe3O4 nanomaterials for the removal of emerging contaminants

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Abstract

Emerging contaminants (ECs) are widely distributed and potentially hazardous to human health and the ecological system. However, traditional wastewater treatment techniques are not sufficient to remove ECs. Magnetic nanomaterials are made of ferromagnetic or superparamagnetic magnetic elements such as iron and nickel, which can be easily separated from the aqueous solution, making them ideal adsorbents for contaminants in water. This review focused on the synthesis approaches of magnetic Fe3O4 nanoparticles (MFNs), as well as surface modification in order to improve their stability and functional diversity. Also, a detailed summary on the state-of-art application of magnetic nanomaterials on the removal of ECs was addressed. Additionally, challenges and future prospective of applying magnetic nanomaterials into real-world cases were discussed, in which the green and simple synthesis and evaluation of the toxic effects of MFNs are still of great challenge. This work summarizes the recent progress of using magnetic nanomaterials as promising and powerful tools in the treatment of ECs-contaminated water, benefiting researchers interested in nanomaterials and environmental studies.

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Funding

This study was financially supported by the Natural Science Foundation of China (41807119), the Open Fund of National Engineering Laboratory for Site Remediation Technologies (NEL-SRT201907), special fund of State Key Joint Laboratory of Environment Simulation and Pollution Control (19K04ESPCT), and Beijing Municipal Science and Technology Project (Z181100002418016).

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BJ designed the content and logic of this review paper. YS finished the first-hand manuscript, and BJ and YX revised this manuscript. All authors read and approved the final manuscript.

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Correspondence to Bo Jiang.

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Responsible Editor: Philippe Garrigues

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Shen, Y., Jiang, B. & Xing, Y. Recent advances in the application of magnetic Fe3O4 nanomaterials for the removal of emerging contaminants. Environ Sci Pollut Res 28, 7599–7620 (2021). https://doi.org/10.1007/s11356-020-11877-8

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  • DOI: https://doi.org/10.1007/s11356-020-11877-8

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