The study of Lee et al. (2016) examined the adsorption of arsenate on various Fe-hydroxides with a combination of classical techniques (optical microscopy, scanning electron microscopy), high-resolution transmission electron microscopy (HRTEM), and chemical modeling. The results of their study may have an impact on future environmental studies as their applied techniques allow the characterization of selective adsorption of contaminants on mineral surfaces composed of multiple phases.

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Iron-(hydr)oxide minerals are among the most prominent groups of minerals in soils, sediments, and anthropogenic environments such as tailings and slag piles (Cornell and Schwertmann 1996). Their large surface area and reactivity...

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