Résumé

Different percentages of CuO and ZnO were added into a local kaolin ceramic-based powder
(DD3) with and without ZrO2. The modified powders were first characterized, then, a test for
the photocatalytic degradation of dyes with orange II (OII) was carried out. The DD3 powders that
were obtained with the addition of ZrO2, ZnO, and CuO, were prepared by two different methods
and have shown a large and very fast photocatalytic activity. Discoloration ratios of about 93.6%
and 100% were reached after 15 min and 45 min, for CuO and ZnO respectively. Finally, an alternative
photocatalysis mechanism, based purely on chemical reaction processes, is proposed. The photocatalysis
results with modified powders are compared with the results obtained with thin films,
made with the same materials.

Information

Item Type:	Journal
Divisions:
ePrint ID:	4412
Date Deposited:	2023-09-13
Further Information:	Google Scholar
URI:	https://www.univ-soukahras.dz/fr/publication/article/4412

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