| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 66369 | Journal of Molecular Catalysis A: Chemical | 2011 | 10 Pages |
Iron(III)-Salen intercalated α-zirconium phosphate, abbreviated as {α-ZrP·Fe(Salen)} was synthesized in situ by the flexible ligand method. The resulting compound was characterized by BET surface area, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, Fourier transform infrared, Mössbauer and atomic absorption spectroscopy. The catalytic activity of α-ZrP·Fe(Salen) with dry tert-butylhydroperoxide (TBHP) as an oxidant was studied for oxidation of cyclohexene. In the oxidation reaction, cyclohexene was oxidized to cyclohexene oxide, cyclohexenol and cyclohexenone. A maximum conversion of 18.04% for the oxidation of cyclohexene was observed after 5 h of reaction when concentrations of the catalyst, the substrate and the oxidant were 0.20, 20 and 4 mmol respectively. The catalyst, α-ZrP·Fe(Salen) was recycled for eight cycles.
Graphical abstractA catalytic system, α-ZrP·Fe(Salen)/dry TBHP, gave a maximum conversion of 18.04% in the oxidation of cyclohexene. The catalyst was stable and recycled for eight runs.Figure optionsDownload full-size imageDownload high-quality image (98 K)Download as PowerPoint slideHighlights► Synthesis of a heterogeneous catalyst, α-ZrP·Fe(Salen) by flexible ligand method. ► Catalyst characterized by BET, XRD, SEM, EDX, FTIR, AAS and Mössbauer spectroscopy. ► Catalytic activation of α-ZrP·Fe(Salen) with dry TBHP for oxidation of cyclohexene. ► Study of recycling of the catalyst up to eight cycles.
