Abstract
Coal-fueled global electricity production is estimated to be 44% by 2030 producing 750 million tons of fly ash, a waste product in combustion, and disposed of in huge amounts on landfills. The improper disposal of such anthropogenic waste-coal fly ash has resulted in environmental issues and needs the sustainable waste management. There are various components of fly ash, cenosphere being one of the most researched ones as to develop recycling methods for fly ash cenospheres. The smart properties of the cenosphere such as lightweight, high thermal resistance, chemical inertness, high compressive strength, less water absorption capacity, etc., make fly ash cenosphere ideal for many industrial and target-specific applications. Cenosphere has found major applications in the construction industry, as fillers to various polymeric composites, shielding to electromagnetic radiation, microwave absorption, oil well drilling material, heat, fire, and sound insulation. The present review focuses on the global generation of coal fly ash, formation, separation of fly ash cenosphere, and summarizing the various modification techniques to develop the functionalized properties on fly ash cenosphere. It also covers the basic concepts related to fly ash cenosphere and its mode of utilization in high-end applications for energy and environmental issues.
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Shende, D.Z., Wasewar, K.L., Wadatkar, S.S. (2021). Target-Specific Applications of Fly Ash Cenosphere as Smart Material. In: Kharissova, O.V., Martínez, L.M.T., Kharisov, B.I. (eds) Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications. Springer, Cham. https://doi.org/10.1007/978-3-030-11155-7_207-1
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