Graphene-based materials for effective adsorption of organic and inorganic pollutants: A critical and comprehensive review
Rout D.R. Jena H.M. Baigenzhenov O. Hosseini-Bandegharaei A.
10 March 2023Elsevier B.V.
Science of the Total Environment
2023#863
Water scarcity has been felt in many countries and will become a critical issue in the coming years. The release of toxic organic and inorganic contaminants from different anthropogenic activities, like mining, agriculture, industries, and domestic households, enters the natural waterbody and pollutes them. Keeping this in view in combating the environmental crises, removing pollutants from wastewater is one of the ongoing environmental challenges. Adsorption technology is an economical, fast, and efficient physicochemical method for removing both organic and inorganic pollutants, even at low concentrations. In the last decade, graphene and its composite materials have become the center of attraction for numerous applications, including wastewater treatment, due to the large surface area, highly active surface, and exclusive physicochemical properties, which make them potential adsorbents with unique physicochemical properties, like low density, chemical strength, structural variability, and the possibility of large-scale fabrications. This review article provides a thorough summary/critical appraisal of the published literature on graphene-, GO-, and rGO-based adsorbents for the removal of organic and inorganic pollutants from wastewater. The synthesis methods, experimental parameters, adsorption behaviors, isotherms, kinetics, thermodynamics, mechanisms, and the performance of the regeneration–desorption processes of these substances are scrutinized. Finally, the research challenges, limitations, and future research studies are also discussed. Certainly, this review article will benefit the research community by getting substantial information on suitable techniques for synthesizing such adsorbents and utilizing them in water treatment and designing water treatment systems.
Adsorption , Anthropogenic , Graphene , Physicochemical , Toxic , Water scarcity
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Department of Chemical Engineering, National Institute of Technology, Orissa, Rourkela, 769008, India
Department of Metallurgical Sciences, Satbayev University, Almaty, Kazakhstan
Faculty of Chemistry, Semnan University, Semnan, Iran
Department of Chemical Engineering
Department of Metallurgical Sciences
Faculty of Chemistry
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