Ag nanoparticle immobilized on functionalized magnetic hydrotalcite (Fe3O4/HT-SH-Ag) for clean oxidation of alcohols with TBHP

[Display omitted] •Oxidation of alcohols with TBHP were carried out under mild conditions.•The reused several times without significant loss of reactivity.•Fe3O4/HT-SH-Ag presented excellent efficiency for alcohol oxidation.•Concise reaction time and excellent yields of products. Hydrotalcite (HT) modified with magnetic nanoparticle and thiol groups for the immobilization of silver to the preparation of Fe3O4/HT-SH-Ag was used. The catalyst was completely characterized using XRD, ICP, SEM, EDS, VSM, FT-IR, and TEM analyzes. The Fe3O4/HT-SH-Ag catalyst is useful in oxidizing of primary and secondary aliphatic and benzyl alcohols to the relevant carbonyl products (aldehyde/ketone). To demonstrate the effect of Ag over the reaction, Fe3O4/HT-SH catalyst performance, and also some other control tests were studied. For this purpose, the model reaction was carried out in the presence of AgNO3, HT (I), and Fe3O4/HT (II), and low yield was obtained (20–50%). High to good efficiency were obtained for all entries, whether benzaldehyde derivatives, in short times. The catalyst can be reused for several continuous runs with a simple external magnet without losing significant reactivity.