Citation:

Nasrollahzadeh, M., M. Sajjadi, S. Iravani, AND R. Varma. Carbon-based Sustainable Nanomaterials for Water Treatment: State-of-art and Future Perspectives. CHEMOSPHERE. Elsevier Science Ltd, New York, NY, 263:128005, (2021). https://doi.org/10.1016/j.chemosphere.2020.128005

Impact/Purpose:

Advanced nanomaterials for water treatment comprising carbon nanotubes, carbon- and graphene quantum dots and graphene-based nanomaterials, are highlighted. They will be useful for attending issues pertaining to emerging contaminants in water bodies and may be exploited by the water treatment plants.

Description:

The supply of safe drinking and clean water is becoming increasingly challenging proposition throughout the world. The deployment of environmentally sustainable nanomaterials with unique advantages namely high efficiency and selectivity, earth-abundance, recyclability, low-cost of production processes, and the stability, has been a priority although several important challenges and constraints still remained unresolved. Carbon nanomaterials such as activated carbon, multi-walled- and single-walled carbon nanotubes, have been developed and applied as adsorbents for wastewater treatment and purification; graphene and graphene oxide-based (nano)materials as well as carbon and graphene quantum dots-derived nanomaterials have shown significant promise for water and wastewater treatment and purification, especially, for industrial- and pharmaceutical-laden wastes. This review encompasses advanced carbonaceous nanomaterials and methodologies deploying them for the elimination of contaminants and ionic metals in aqueous media, and as novel nanosorbents for wastewater, drinking and ground water treatment. Additionally, recent trends and challenges pertaining to the sustainable carbon and graphene quantum dots-derived nanomaterials and their appliances for treating and purifying wastewater are highlighted.

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