Green Nanomaterials for Wastewater Treatment

Nanomaterials are very small-sized particles that have nanoscale dimension approximately from 1 to 100 nm. The green nanomaterials or nanoparticles are synthesized by biological methods. During the synthesis of green nanoparticles, natural materials such as plants, microorganisms and organic polymers like carbohydrates, proteins and fats are actively involved. Due to the very small size, nanomaterials are playing a significant role in wastewater treatment system and give up possibilities for targeting very specific points. Different types of biosynthesized nanomaterials are used in the controlling of water pollution, such as zinc oxide nanoparticles, phytogenic magnetic nanoparticles, biopolymer-coated metal nanoparticles, silver-impregnated cyclodextrin nanocomposites, silver nanoparticles in Aloe vera plant extract and Photocatalytic titania nanoparticles. Green nanoparticles are providing an alternative way for elimination of pollutants from the water bodies. The application of green nanoparticles provides an economical, convenient and eco-friendly way of wastewater treatment.