| Synthesis of a new Cu (II) Schiff base complex coated on Co nanoparticles and application in oxidation of sulfides to sulfoxides |
| کد مقاله : 1354-ICOC |
| نویسندگان |
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شکوفه قهری صارمی *1، محمد نوروزی2، اعظم انتظاری هرسینی3 1عضو هیات علمی دانشگاه پیام نور کرمانشاه 2پژوهشگاه صنعت نفت 3عضو هیات علمی دانشگاه پیام نور |
| چکیده مقاله |
| In this study, the catalysts Co@SiO2[(EtO)3Si–L3]/Cu(II) was successfully prepared via immobilizing the Schiff base ligand [(EtO)3Si–L3H] on the Co nanoparticles coated with SiO2 and then reacting them with metal salt Cu(II). The Schiff base ligand Co@SiO2[(EtO)3Si–L3] according to the procedure previously reported in literature [1], was synthesized by reacting Co@SiO2–NH2 amine nanoparticles with 2-hydroxy 1-naphthaldehyde. The catalyst was characterized before reaction by various techniques such as FT-IR, TEM, XRD, TGA and VSM. The catalytic activities of the prepared catalyst were investigated by employing in oxidation of sulfides to the sulfoxides under different conditions and showed high catalytic activity and selectivity [2]. This catalyst was found to be easily reusable several times after reaction with an external magnet and drying without significant catalytic deactivation, which typically occurs due to the leaching of the active species or degradation of the structure. It appears that the Schiff base complex has played an important role in the stabilization of metal catalyst particles (scheme 1). . |
| کلیدواژه ها |
| Schiff base complex, Magnetic cobalt nanoparticles, Sulfides oxidation |
| وضعیت: پذیرفته شده |