Nanomaterials are extremely small particles with nanoscale dimensions ranging from 1 to 100 nanometers. Biological approaches are used to create green nanomaterials or nanoparticles. Natural materials such as plants, microbes, and organic polymers such as carbohydrates, proteins, and lipids are actively involved in the synthesis of green nanoparticles. Green nanoparticles offer an alternate method for removing toxins from water bodies. The use of green nanoparticles in wastewater treatment is a cost-effective, convenient, and environment friendly option.
Nanotechnology is a cutting-edge science that has the ability to solve the present water treatment crisis' problems. It has the potential to add new dimensions to current water treatment procedures by enabling the most efficient use of eccentric water resources. Nanotechnology is used in three primary applications in water treatment: remediation and purification (through complete or partial removal of contaminants), pollution monitoring (through pollutant specific nanosensors and detectors), and pollution prevention.