In the modern day, globs are heated by both natural and human activities. Global warning: The heat of the atmosphere has been increasing day by day and is having an impact on natural resources like water and soil, among others. Water in particular is crucial for the preservation of natural resources because life cannot exist without it. Therefore, it is imperative to prevent water wastage using any available technique. Highlights of this article is utilization of nanomaterials for wastewater treatment. Nanomaterials are employed in a variety of transdisciplinary projects. In bio nanoscience, the manufacturing process doesn't require harmful chemicals or a lot of energy, and bio-reducing agents cause the nanoparticles to have unique features. Wastewater treatment, biomedicine, agriculture, and environmental applications are just a few of the areas in which green-fabricated nanoparticles may find use. The treatment of waste water with nanomaterials is the main topic of this articles. The difficulties now facing large-scale nanoparticle production for environmental applications have received attention. For sustainable development nanomaterials are used as a wastewater treatment