Abstract
This review is focused on the environmental applications of 3D graphene–carbon nanotube hybrid materials including sensing and monitoring of contaminants and also their remediation.
Highlights
Graphene, a two-dimensional (2D) single layer of sp2-hybridized carbon atoms, has attracted remarkable attention due to its unique combination of high surface area, mechanical properties and electrical conductivity.[1,2,3,4] to minimize the surface free energy, aggregation of the graphene sheets and restacking occur due to their strong van der Waals interactions, thereby greatly hindering the practical applications of graphene.[1]
This review presents the promising environmental applications of 3D graphene/carbon nanotubes (CNTs) hybrid materials with special focus on the synergistic effects arising from the combination of graphene and CNT
Considering that studies on the environmental applications of 3D graphene/CNT hybrids are crucial for our survival, the present review aims to present promising environmental applications related to the removal of oils and organic solvents, adsorption of dyes, removal of heavy metal ions, gas sensing and the catalytic conversion of pollutants to shed light on the current challenges and upcoming opportunities
Summary
A two-dimensional (2D) single layer of sp2-hybridized carbon atoms, has attracted remarkable attention due to its unique combination of high surface area, mechanical properties and electrical conductivity.[1,2,3,4] to minimize the surface free energy, aggregation of the graphene sheets and restacking occur due to their strong van der Waals interactions, thereby greatly hindering the practical applications of graphene.[1] to overcome this drawback, the surface of the graphene layers must be altered through covalent functionalization, non-covalent stabilization or dispersal in specific solvents.[5]. The outstanding electrical conductivity of these materials coupled with surface functionalization by various nanoparticles makes them suitable for catalytic applications They possess remarkable mechanical stability, flexibility and strength, which are desirable for various environmental applications. Considering that studies on the environmental applications of 3D graphene/CNT hybrids are crucial for our survival, the present review aims to present promising environmental applications related to the removal of oils and organic solvents, adsorption of dyes, removal of heavy metal ions, gas sensing and the catalytic conversion of pollutants to shed light on the current challenges and upcoming opportunities
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