  The preparation and properties of zeolite-containing oxide coatings obtained
by plasma electrolytic oxidation are investigated and discussed. Pure and
Ce-exchanged natural (clinoptilolite) and synthetic (13X) zeolites are
immobilized on aluminum support from silicate-based electrolyte. Obtained
coatings are characterized with respect to their morphology, phase and chemical
composition, photocatalytic activity and anti-corrosion properties. It is
observed that all mentioned properties of obtained coatings are dependent on
processing time and type of immobilized zeolite. Coatings with Ce-exchanged
zeolite show higher photocatalytic activity and more effective corrosion
protection than those with pure zeolite. The highest photocatalytic activity is
observed for coatings processed in pulsed a DC regime for 30 minutes containing
Ce-exchanged 13X zeolite, followed by those containing Ce-exchanged
clinoptilolite. Pronounced anti-corrosion properties feature almost all samples
containing Ce-exchanged 13X zeolite.
