We present a novel strategy based on the immobilization of L-aspargine Coated Co and Cr on CoFe2O4 for development of a catalytic system with high efficiency and recyclability. The modified nanoparticles were systematically studied via FT-IR, VSM, XRD, TGA, EDX, SEM and ICP-OES. These provides a highly efficient heterogeneous catalysts for the oximation of different aldehydes in water. After use, the catalysts were magnetically separated and reused for 7 consecutive rounds of reaction, without any significant loss in catalytic activity. This approach of using NP-loaded green linker as reusable catalysts is expected to open doors for new types of catalytic support for practical applications
