Spotlighting graphene-based nanomaterials for the mitigation of hazardous water pollutants: A review

During past decades, concerns about water contamination and its adverse consequences on the ecosystem have increased with population growth and industrial development. Recently, carbon- based nanomaterials, especially Graphene and its derivatives, have shown their excellent potential in eradicating water pollutants via photocatalysis. This review article summarizes the cleaner production of graphene-based engineered nanomaterials (GBNMs) to lessen environmental pollutants such as polycyclic aromatic hydrocarbons, dyes, pesticides, heavy metals, phenols, and pharmaceutical waste from water. GBNMs-based solar radiation-assisted catalysts are a promising tool for environmental remediation and may provide facile alternatives to achieve a clean environment and pure water. This paper also comprehensively discusses various methodologies (conventional and green) for synthesizing GBNMs and their advantages over conventional methods. Moreover, GBNMs also offer a mechanism for adsorption and photocatalytic degradation to eliminate environmental contaminants. The last five years of study in this enormous field have been evaluated scientifically and analyzed. This review paper further addressed potential fixes, difficulties, and impending development prospects for GBNMs catalysts in sustainable applications in the future.