Nanocarbon aerogel composites

Abstract Aerogels are a special kind of gel material in which the liquid part is replaced with gas without collapsing the overall structure. These materials are of special interest due to their low density, high porosity, and surface area. This chapter presents a brief historic overview of aerogels, then switches to the nanocarbon aerogels consisting of CNT, GN, nanodiamonds, etc. The various techniques for preparing nanocarbon aerogels and their composites have also been discussed. The characterizations of these fascinating materials have been briefly described to get an overview of the porous network and different fabrication possibilities. Finally, the applications of nanocarbon aerogel composites have been discussed in the field of environmental remediation such as gas sensing, adsorptive removal of pollutants, photocatalytic degradation, and the energy sector.