Overview

The deterioration of water quality and unavailability of drinkable water are pressing challenges worldwide. The removal of toxic organic and inorganic pollutants from water is vital for a clean environment, as a response to water scarcity. Adsorption-based water technologies are among the most widely used because of their high efficiency and low cost, without relying on a complex infrastructure. In recent years, carbon nanomaterials (CNMs), such as graphene and derivatives, carbon nanotubes, carbon nanofibers, nanoporous carbon, fullerenes, graphitic carbon nitride, and nanodiamonds have been extensively exploited as adsorbents due to their extraordinary surface properties, ease of modification, large surface area, controlled structural varieties, high chemical stability, porosity, low density, ease of regeneration, and reusability. This book provides a thorough overview of the state of the art in carbon nanomaterials as they are used for adsorption applications in water purifications, as well as addressing their toxicological challenges. This volume primarily explores the fundamentals of adsorption, its mechanical aspects, synthesis and properties of CNMs, and adsorption performances of CNMs and their nanocomposites with organic and inorganic materials. Structural engineering and activation processes produce materials with enhanced adsorptive properties and separation efficiencies. Furthermore, the formation of CNMs with 2D and 3D macro-and microstructures and high porosities is a potential approach to improve adsorption performances and extend CNM use at the industrial level. The book also addresses important issues regarding these adsorbents that potentially affect future research and industrial applications of carbon-based nanoadsorbents in water security.

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9780128219591

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Professor Suprakas Sinha Ray is Chief Research Scientist and Director of the DST/CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria, South Africa. He received his PhD degree in Physical Chemistry at the University of Calcutta, India in 2001 and was a recipient of the ''Sir P.C. Ray Research Award'' for the best PhD work. Prof. Ray's current research focuses on the applications of advanced nanostructured and polymeric materials. He is one of the most active and highly cited authors in the field of polymer nanocomposite materials, and he has recently been rated by Thomson Reuters as being one of the Top 1% most impactful and influential scientists and Top50 high impact chemists. Prof. Ray is the author of 5 books, co-editor of 3 books, and has published 32 book chapters and 330 journal articles. Prof. Ray has received numerous awards, including South Africa's National Science and Technology Award (NSTF) in 2016, the CSIR-wide Leadership Award in 2014, the CSIR Human Capital Development Award in 2014, and the International Polymer Processing Society's Morand Lambla Award in 2013. He has also been appointed Extraordinary Professor by the University of Pretoria, and Distinguished Professor of Chemistry by the University of Johannesburg. Currently, he is serving as an Associate Editor of RSC Advances, and is an editorial board member of Macromolecular Materials and Engineering and the Journal of Films and Sheeting. Rashi Gusain is a Research Fellow at University of Johannesburg and also a visiting researcher at CSIR-Pretoria, South Africa. Her research interests focus on development of inorganic materials for photo-degradation of organic water contaminants and CO2 capture and conversion. Neeraj Kumar is a senior researcher at the DST-CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research (CSIR), Pretoria, South Africa. His research interests focus on controllable synthesis of nano-structural layered materials especially carbon nanomaterials and metal chalcogenides and their modifications for environmental applications including water treatments, adsorption, photocatalysis, and CO2 capture and conversion

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