Lead and Cadmium Toxic Metals Removal by Carbon Nanocomposites

Water pollution because of the discharge of heavy metal ions in water is a severe environmental issue in the current situation. So, drinking water sanitization before human consumption is necessary for good human health. Out of diverse technologies used for heavy metal removal, adsorption on nanomaterial substrates and membrane filtration are potential techniques owing to their competence, easy functioning, cost-effectiveness, and constraint equipped area. To date, several materials have been employed in engineering these nanoadsorbents and filtration membranes. In the morphology of these developed nanoadsorbents and membranes, it can be outcome that these have good site density, charge, and surface areas and to adsorb the metal ions on their surface efficiently. In this chapter, we mainly emphasis on the submission of carbon nanocomposites to remove lead and cadmium engineered at the nanoscale, testing both advantages and limitations of these adsorbents. Finally, scopes and future scenarios of these adsorbents have been discussed.