Recently, separation and recycling of heterogeneous catalysts is employed in the various area. However, immobilization of homogeneous catalysts usually decreases the catalytic activity or selectivity1. This drawback can be overcome using nanomaterials as heterogeneous supports. When the size of the support is decreased to the nanometer scale, the surface area is substantially increased, which is combined with excellent accessibility of the surface-bound catalytic sites2. Among the various nano materials, the spinel ferrites (AB2O4, B= Co, Fe, Ni, Mn, Mg, Al, Zr, Zn...) alloy (Fe-Co, Fe-Pt, Fe-Ru.), and multifunctional nanoparticles have higher performance than the monometallic catalysts. The notable advantages of spinel ferrite MNPs are simple synthesis, readily available, low cost, high surface area, low toxicity and superparamagnetism properties. Owing to the inherent advantages of recovery, in the context of green chemistry and reuse of catalyst, and also rarely used in the isolation and recycling of expensive homogeneous catalysts 3,4.
