Fig. 1.11 The possible mechanism for adsorption of metal ions by (a) carboxyl-, (b) amine- and (c)
thiol-functionalized Fe 3 O 4 magnetic nanoparticles. (Reprinted from Singh et al. (2011), with
permission from Elsevier)
1 Metal Oxides as Decontaminants of Water and Wastewater
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