واختبار نشاط التحفيز الضوئي Sno2 واكسيد القصدير النقي Zno تحضير وتوصيف اغشية اكسيد الزنك النقي
Résumé: Zinc oxide (ZnO) and tin oxide (SnO2) are pure transparent oxides of n-type conductivity with important physical, structural, and optical properties. This makes them widely used in various fields such as electronics and photovoltaic cells, among others. In this work, we prepared thin films of zinc oxide and tin oxide on glass substrates. We deposited the films using the thermal decomposition spray technique, which we chose for its simplicity and ease of preparation. Visible and ultraviolet measurements, through recording the transmittance spectrum in the wavelength range of 300-800 nm, showed that ZnO and SnO2 exhibit high transparency in the visible spectrum. FTIR results indicated the presence of energy absorption bands attributed to Zn-O and Sn-O bonds. Scanning electron microscopy (SEM) images provided clear insights into the morphological structure of the films, and XRF results confirmed the atomic structure. Photocatalytic tests using methylene blue as a dye or pollutant demonstrated the effective use of the films for purification purposes.
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