Oxidation of o-phenylenediamine to 2,3-diaminophenazine in the presence of cubic ferrites MFe2O4 (M = Mn, Co, Ni, Zn) and the application in colorimetric detection of H2O2


Vetr F., Moradi-Shoeili Z., ÖZKAR S.

APPLIED ORGANOMETALLIC CHEMISTRY, vol.32, no.9, 2018 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 9
  • Publication Date: 2018
  • Doi Number: 10.1002/aoc.4465
  • Journal Name: APPLIED ORGANOMETALLIC CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Keywords: hydrogen peroxide detection, kinetic analysis, o-phenylenediamine, oxidation reaction, PEROXIDASE-LIKE ACTIVITY, HETEROGENEOUS FENTON REACTION, MAGNETIC-PROPERTIES, HORSERADISH-PEROXIDASE, CATALYTIC-ACTIVITY, HYDROGEN-PEROXIDE, NICKEL FERRITE, NANO-FERRITES, NANOPARTICLES, COBALT

Abstract

Metal ferrites nanocrystallites, MFe2O4 (M = Mn, Co, Ni, Zn) were prepared by coprecipitation method and characterized by a combination of physico-chemical and spectroscopic techniques. MFe2O4 nanoparticles having particle size in the range 10-35 nm were tested as catalysts in the oxidation of o-phenylenediamine (OPD) to 2,3-diaminophenazine (DAP) using hydrogen peroxide as oxidant at room temperature. Kinetic data was collected for the catalytic oxidation of OPD to DAP by monitoring the UV-vis absorbance at 415 nm and fit well to the Michaelis-Menten model yielding kinetic parameters K-m (Michaelis-Menten constant) and V-max (maximum rate of reaction). MnFe2O4 nanoparticles provide the highest catalytic activity in the oxidation of OPD to DAP at room temperature. A colorimetric method was developed based on the MnFe2O4/OPD system for the detection of H2O2 in reaction solution. The method has a detection limit of 30 mu M for H2O2 and wide linear range.