Heterogenized Fe(III) phthalocyanine: Synthesis, characterization and application in liquid-phase oxidation of phenol

Tetra-tert-butyl substituted FePc(acac) complexes were supported upon mesoporous molecular sieves MCM-41 and SBA-15 via adsorption and coordination bondings as well as by covalent grafting. Prepared materials were characterized by UV–vis, MALDI, N2-BET, SEM, TEM, FTIR, 13C, 29Si NMR and DSC–TG techniques. Supported FePcs exhibited high activity in liquid-phase oxidation of phenol with H2O2. The most resistant towards oxidative degradation were shown to be the covalently grafted FePc species.

The grafting of phthalocyanine Fe(III)(acac) complex onto surface of SBA-15 via covalent bonding: phthalocyanine prepared contains functional methoxysilyl substituent to condensate with surface OH groups of the support.Figure optionsDownload high-quality image (87 K)Download as PowerPoint slide