Montmorillonite-supported NiFe2O4 as magnetically separable and reusable oxidation catalyst

By supporting NiFe2O4 onto montmorillonite, the highly active and reusable catalyst for methyl violet oxidation was obtained. By using XRD, TEM, XPS, and VSM analyses, it is obtained that the concentration of precursor was a controlling factor to determine the specific surface area, NiFe2O4 particle size, and magnetism. It is found that adsorption influences the catalytic activity enhancement and the stability of catalysts.

Automated summary

By supporting NiFe2O4 onto montmorillonite, a highly active and reusable catalyst for methyl violet oxidation was obtained. Through XRD, TEM, XPS, and VSM analyses, it was found that the concentration of precursor played a crucial role in determining the specific surface area, NiFe2O4 particle size, and magnetism. The study also revealed that adsorption had an impact on both the enhancement of catalytic activity and the stability of the catalysts.