The use of graphene-related two-dimensional (2D) materials in water treatment have gained
tremendous attention in diminishing the worldwide water scarcity owing to their unique water transport
properties, high surface area, excellent mechanical strength, non-corrosive features and tunable surface
chemistry as discussed in patents. Graphene oxide (GO) has also received extensive coverage in water
treatment processes as a promising adsorbent candidate because of its higher adsorption capacity for the
removal of several hazardous contaminants. Compared to the conventional adsorbents, GO may offer
several advantages; such as two basal planes available for toxin adsorption, scalable production, oxygen-
containing functional groups and catalyst free conditions. The current review is focused on the
synthesis methods, chemical, and adsorption properties of GO, and their applications for the removal of
heavy metal species.
Keywords: Graphene, heavy atoms, graphene oxide, adsorption, two-dimensional, remediation.
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