Role of Magnetic Nanomaterials in Environmental Remediation

“Nanomaterials,” or substances having a diameter of less than 100 nm, have piqued the interest of scientists. The number of studies on magnetic nanomaterials has increased extraordinarily over the previous two decades. Recently, ecologists have developed a keen interest in the development of nanomaterials that are both economical to produce as well as benign to both the environment and the biosphere. There is a lot of interest in ferrite nanomaterials for use in environmental remediation due to the materials’ unique magnetic properties, which can be tuned to a wide variety of functionalization. This chapter summarizes magnetic nanomaterials and their potential uses in environmental remediation. Environmental remediation benefits from the use of magnetic nanomaterials since they can remove pollutants and biological contaminants rapidly. New applications are being developed for magnetic nanomaterials with unusual optical, magnetic, thermal, and mechanical properties of magnetic nanomaterials. Magnetic nanoparticles can transform magnetic energy into thermal energy, opening the door to a wide range of analytical methods. The easy separation of magnetic nanoparticles by a magnet and their reusability makes them highly efficient. In addition, the difficulties of employing adsorbent materials, the time required, and the volume of the samples can be overcome by using them. In this chapter, the use of magnetic nanomaterials in various environmental remediation applications and their mechanism of action has been outlined.