Magnetic adsorbents are widely used in environmental remediation for the efficient removal of pollutants such as heavy metals, dyes, and organic contaminants from wastewater. Their magnetic properties allow for easy separation and recovery from the treated water using an external magnetic field, eliminating the need for filtration or centrifugation. In the field of biotechnology, they are employed for the purification and separation of biomolecules like proteins, DNA, and cells, offering high selectivity and efficiency. Additionally, magnetic adsorbents are utilized in catalysis, where they serve as supports for catalysts, enabling easy recovery and reuse. Their applications also extend to drug delivery systems, where they are used for targeted therapy by guiding therapeutic agents to specific sites in the body using magnetic fields.