Application of Nanoadsorbents for Lead Decontamination in Water

Clean waterWater availabilityNanoadsorbent is a primary requisite of all living organisms. The rapid rise in population has led to significant development and industrial growth all over the globe to fulfil the increasing demands. This has resulted in the contamination of water bodies due to the release of heavy metals and metalloids caused by sudden mine tailings, gasoline, leaded paints, usage of fertilizers inland, animal manures, pesticides, sewage sludge, wastewater irrigation, coal, etc. The contaminationContamination of waterWater bodies has caused severe environmental concerns. As a limited natural resource, the water preservation and its quality maintenance are of fundamental importance to ensure its availability for future generations. Therefore, eliminating heavy metalsHeavy metal and other pollutants from contaminated streams is a primary concern due to their ability to cause toxic chaos that can affect the metabolism of flora and fauna. However, the existing decontaminationDecontamination techniques, such as ion exchange and reverse osmosis, suffer many disadvantages; hence, the focus has been shifted to developing novel, efficient techniques to remove heavy metals such as lead from the water. Out of these, the adsorption based on nanoadsorbentsNanoadsorbent has gained popularity due to its ease of operation and cost-effectiveness. This chapter highlights the recent advances in waterWater decontaminationDecontamination methods using nanoadsorbentsNanoadsorbent involving carbon nanotubes, graphene, polymer-based, metal oxide nanoparticles, zeolites, and nano-clays.