Magnetic Nanomaterials for Separations

Magnetic Nanomaterials for Separations

Sunil Kumar and Rashmi Madhuri

Magnetic nanomaterials have low cost, high removal capacity, reusability, high surface-volume ratio, and high reactivity towards eluent compounds, therefore, are highly suitable for separation purposes. Their only drawback associated with magnetic nanoparticles (MNPs) is their poor stability in harsh conditions. Therefore, in general, for their wider applications modified MNPs are used. Magnetic nanomaterials were modified or coated with various kinds of materials to protect their outer surface from strong pH, high temperature, etc. Here, in this chapter, we focused on the modification of MNPs and their role in separation science. For example, modifications with inorganic materials (like silica, metal, and carbon) improve the reactivity of MNPs and reduce their agglomeration. Similarly, modification with organic materials (like surfactants and polymer) may improve stability of MNPs and avoid their agglomeration. Here, we have included the role of modified MNPs for successful separation of protein, nucleic acid, heavy metal ions, dyes, etc.
Keywords

Keywords
Separation, Magnetic Nanoparticles, Metal Ions, Carbonaceous Nanomaterials, Surfactants, Polymers

Published online 1/30/2020, 43 pages

Citation: Sunil Kumar and Rashmi Madhuri, Magnetic Nanomaterials for Separations, Materials Research Proceedings, Vol. 66, pp 87-129, 2020

DOI: https://doi.org/10.21741/9781644900611-3

Part of the book on Magnetochemistry

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