This book focuses on creating and utilizing eco-friendly nanocomposites for efficient wastewater treatment. This book explores these cutting-edge materials' synthesis, characterization, and performance assessment, highlighting their contribution to the advancement of environmentally friendly water purification methods. It outlines comprehensive methods for creating environmentally friendly nanocomposites, incorporating green chemistry strategies, as well as sophisticated characterization procedures to assess their functional, chemical, and structural attributes. Detailed examination of how well the nanocomposites remove organic pollutants, heavy metals, and pathogens from wastewater is also explored. Lastly, it looks at how this field of study will develop going forward, taking into account new developments in technology, possible obstacles, and the wider effects of these materials on international water management plans. The book caters primarily to researchers and academics who are interested in the most recent developments in sustainable water treatment technologies. These scholars include those in the fields of environmental science, materials science, nanotechnology, and chemical engineering. They will get a thorough grasp of the synthesis, characterization, and uses of environmentally friendly nanocomposites from the book.