A brief study on zinc oxide based nanosorbents and adsorptive removal of heavy metal ions

Abstract

The liquid waste streams releases from industrial sectors contain numerous inorganic and organic pollutants. These pollutants may be heavy metals and synthetic dyes. Metal oxide based nanomaterials have been used in the removal of such pollutants from waste water by using adsorption techniques. The adsorption based removal of heavy metals is found good alternative over other conventional methods. ZnO nanoparticle based adsorbents have been utilised in the removal different heavy metal ions from waste water. These adsorbents are generally prepared by the incorporation of organic or inorganic materials with ZnO nanoparticles. In this brief review, we will be discussed about different ZnO based nanomaterials which potentially utilised in treatment of waste water containing heavy metals.