ABSTRACT
Water pollution caused by various chemical pollutants (inorganic and organic) is a key concern of society as polluted water creates a risk to human health and the environment. It also affects welfare, economy, eco-systems and sustainable development. Monitoring and removal of pollutants from water is a major task to maintain a supply of clean water to the community and control the impact on the environment. Many traditional techniques have been developed for wastewater remediation which offers good effectiveness but suffer from the operational method, high cost and more energy requirements that have limited their on-site utilization. On other hand, the use of nanomaterials is rapidly increased as an alternative for the removal of pollutants from water due to their high efficiency, low cost and eco-friendly nature. Also, high surface area and surface reactivity at nanoscale make them more target-specific approach which used water remediation. This chapter provided a detailed description of various nanomaterials-based techniques used for the removal/degradation of water pollutants (heavy metals, pesticides and other toxic chemicals). This chapter also discusses the overview of the recent progress, limitation and challenges in the area of nanomaterials-based technology for water remediation.
