A comprehensive study of the heterojunction effect of Sn on TiO2 for UV-visible light via organic compounds and the effect of optical properties, pH, and catalyst loading on photodegradation efficiency.
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Illuminated semiconductors have been used to remediate a variety of pollutants found in water. industrial wastewater treatment using UV irradiation in combination with oxidants or catalysts (TiO 2 ). In this study, TiO 2 -SnO 2 nanocomposites of different ratios will be prepared and characterized, and their use in the photocatalytic degradation of acid red 37 dye in aqueous solution under UV irradiation as a model pollutant will be examined. The TiO 2 -SnO 2 nanocomposites were characterized using XRD, TEM, EDAX, FTIR, and XPs. Utilizing a batch photoreactor, the photocatalytic degradation was investigated utilizing several advanced oxidation processes with varying SnO 2 contents (0–15 weight percent) and inorganic antioxidants (H 2 O 2 , Na 2 S 2 O 8 , and NaIO 4 ) with a UV/TiO 2 -to-SnO 2 ratio (90:10). Then the effects of PH, dye concentrations, and different loadings (g/L) of nanocomposite on the photocatalytic activity of the SnO 2 /TiO 2 nanocrystals were studied.
