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

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 coat...

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Bibliographic Details
Published in:Surfaces and interfaces 2021-10, Vol.26, p.101307, Article 101307
Main Authors: Mojsilović, Kristina, Božović, Nikola, Stojanović, Srna, Damjanović-Vasilić, Ljiljana, Serdechnova, Maria, Blawert, Carsten, Zheludkevich, Mikhail L., Stojadinović, Stevan, Vasilić, Rastko
Format: Article
Language:English
Subjects:
Multifunctional coatings
Oxide coatings
Photocatalysis
Plasma electrolytic oxidation
Zeolites
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Summary: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.
ISSN:2468-0230
2468-0230
DOI:10.1016/j.surfin.2021.101307