Abstract

The potential of nanoadsorbents and their many advances was discussed in this review paper in detail—nanomaterials are known to possess a series of unique physical and chemical properties. Emphasis was given in the present, among other, to iron oxyhydroxides. The synthesis method (in the laboratory) led to the production of a material—that is, akaganéite—consisting of nanocrystals with high surface area and defined pore size distribution. Certainly, adsorption is one of the promising separation techniques applied for the decontamination of wastewaters, and activated carbon constitutes a typical adsorbent material, often modified (mentioning grapheme oxide, too). Applications presented here were mainly to heavy metals, oxyanions, and cations, removal and also dyes, which were coming from our experience, but taking into account meanwhile the current literature.

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