 This research introduces a new hybrid magnetic nanocomposite consisting of curcumin, Kerr, iron oxide magnetic nanoparticles, Fe3O4-MNPs, melamine-linka, mel, and silver nanoparticles, AGNPs. The nanocomposite was created using a simple in situ method which allowed for the efficient production of the Fe3O4 at Kerr-MelaG magnetic catalyst. This catalyst showed excellent catalytic activity when used to reduce nitrobenzene derivatives with a high reaction yield of 98%. Furthermore, the Fe3O4 at Kerr-MelaG magnetic nanocomposite can be easily recovered from solution after use, allowing for multiple cycles of reuse without significant loss of catalytic activity. As such, this magnetic nanocomposite is a promising material for the efficient reduction of nitrobenzene derivatives. This article was offered by Nima Kalehi, Mahadasseh Farooz and Ehmalati, Fajr Macanjavi, and others.