Recent developments in the utilization of modified graphene oxide to adsorb dyes from water: A review

Recently, there is an increasing concern on dye contamination in the aquatic environment. Elimination of dye contaminants has gained significant attention among researchers due to their potential deleterious risk to human health and the ecosystem. Among the treatment technologies for dye removal from the water system, the utilization of modified graphene oxide as an adsorbent has garnered increasing research interest due to its superior dye adsorption capacity. Hence, this review aims to comprehensively present the classifications and hazards of dyes, types of preparation methods for modified graphene oxide and recent developments in the employment of modified graphene oxide to adsorb dyes from water. Additionally, the primary objective of this review is to emphasize on adsorption performances of modified graphene oxide for dye removal in an aqueous medium, specifically focusing on the adsorption kinetics, adsorption isotherms and the effect of experimental parameters. Furthermore, the pertinent challenges, tremendous opportunities and the future outlook of modified graphene oxide to be employed as a potential aqueous dye adsorbent were also discussed.