Synthesis, characterization, and catalytic activity of supported molybdenum Schiff base complex as a magnetically recoverable nanocatalyst in epoxidation reaction

Moradi-Shoeili Z., Zare M., Bagherzadeh M., ÖZKAR S., Akbayrak S.

JOURNAL OF COORDINATION CHEMISTRY, vol.69, no.4, pp.668-677, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 69 Issue: 4
  • Publication Date: 2016
  • Doi Number: 10.1080/00958972.2015.1137290
  • Journal Name: JOURNAL OF COORDINATION CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.668-677
  • Keywords: Molybdenum complex, magnetic nanoparticles, heterogeneous catalyst, schiff base, epoxidation reaction, PHASE OLEFIN EPOXIDATION, ASYMMETRIC EPOXIDATION, NANOPARTICLES, IRON, FUNCTIONALIZATION, MICROSPHERES, OXIDATION, EFFICIENT, MCM-41, SILICA
  • Middle East Technical University Affiliated: Yes

Abstract

A heterogeneous nanocatalyst was prepared via covalent anchoring of dioxomolybdenum(VI) Schiff base complex on core-shell structured Fe3O4@SiO2. The properties and the nature of the surface-fixed complex have been identified by a series of characterization techniques such as SEM, EDX, XRD, TGA, FT-IR, and VSM. The synthesized hybrid material was an efficient nanocatalyst for selective oxidation of olefins to corresponding epoxides with t-BuOOH in high yields and selectivity. The catalyst could be conveniently recovered by applying an external magnetic field and reused several times without significant loss of efficiency.