Zeolite-encapsulated Cr(III), Fe(III), Ni(II), Zn(II) and Bi(III) salpn complexes as catalysts for the decomposition of H 2O 2 and oxidation of phenol

Abstract

Cr(III), Fe(III), Bi(III), Ni(II) and Zn(II) complexes of N, N′-bis(salicylidene)propane-1,3-diamine (H 2salpn) encapsulated in Y-zeolite were prepared by flexible ligand method. These complexes were characterized by chemical and thermal analyses, FT-IR and electronic spectral studies and their XRD pattern. The encapsulated materials are active catalysts for the decomposition of hydrogen peroxide and for the oxidation of phenol using H 2O 2 as oxidant with good selectivity.