MAG is the latest biomaterial developed using nanotechnological advancement. It is novel, simple, fast and effective in dye-removal. Magnetic assisted separation is a promising technique for adsorption of difficult-to-handle samples. The application of magnetic particles is of special interest in relation to environmental as it improves separation of used adsorbents. MAG has been developed from rice husk, which have an ability to become effective adsorbents. The development of nano-ferum liquid modified rice husk into MAG has been achieved successfully.