Zeolite-containing photocatalysts immobilized on aluminum support by plasma electrolytic oxidation

• Published in: Surfaces and interfaces Vol. 26; p. 101307
• Main Authors: Mojsilović, Kristina, Božović, Nikola, Stojanović, Srna, Damjanović-Vasilić, Ljiljana, Serdechnova, Maria, Blawert, Carsten, Zheludkevich, Mikhail L., Stojadinović, Stevan, Vasilić, Rastko
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2021
• Subjects: Multifunctional coatings; Oxide coatings; Photocatalysis; Plasma electrolytic oxidation; Zeolites; Multifunctional coatings; Plasma electrolytic oxidation; Zeolites; Photocatalysis; Oxide coatings
• ISSN: 2468-0230; 2468-0230
• DOI: 10.1016/j.surfin.2021.101307

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 a pulsed DC regime for 30 min 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.