Magnetic adsorbents are widely used in environmental remediation for the efficient removal of contaminants such as heavy metals, dyes, and organic pollutants from water. Their magnetic properties allow for easy separation and recovery from the treated water using an external magnetic field, making the process cost-effective and sustainable. In the field of biotechnology, they are employed for the separation and purification of biomolecules like proteins, DNA, and cells, enabling precise and rapid isolation. Additionally, magnetic adsorbents play a crucial role in catalysis, where they facilitate chemical reactions and can be easily recycled, reducing waste. They are also utilized in drug delivery systems, where they help target specific tissues or organs, enhancing therapeutic efficacy while minimizing side effects.