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<p>A variety of compounds have been treated with lit semiconductors for water pollution treatment. UV irradiation with oxidants or catalysts (TiO<sub>2</sub>) can remediate industrial effluent. The goal of this study is to prepare and characterize TiO<sub>2</sub>–SnO<sub>2</sub> nanocomposites with different ratios to degradation dyes in wastewater treatment. These nanocomposites will be used to photocatalysis degradation of acid red 37 dye in aqueous solution using UV irradiation as a model pollutant. The characterization of TiO<sub>2</sub>–SnO<sub>2</sub> nanocomposites was conducted using XRD, TEM, EDAX, FTIR, and XPS. The photocatalytic degradation was tested with several advanced oxidation processes (AOPs) by adding varying concentrations of SnO<sub>2</sub> (0–20 wt.%), and then by employing an inorganic antioxidant (H<sub>2</sub>O<sub>2</sub>, Na<sub>2</sub>S<sub>2</sub>O<sub>8</sub>, NaIO<sub>4</sub>) with a ratio of UV/TiO<sub>2</sub>–SnO<sub>2</sub> (90:10) to high efficiency of degradation of acid red 37 dye using a batch photoreactor. Consequently, the effects of pH, dye concentrations, and different loading (g/L) of nanocomposite on the photocatalytic activity of the SnO<sub>2</sub>–TiO<sub>2</sub> nanocrystals were examined. The UV/TiO<sub>2</sub>–SnO<sub>2</sub> (90:10) wt.% has higher photocatalytic efficiency for degradation acid red 37 dye from either TiO<sub>2</sub>, SnO<sub>2</sub> or the other ratios in this study.</p>

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Enhanced rates photocatalytic degradation of acid red 37 dye by TiO2–SnO2 in solid state under UV-irradiation light

  • 期刊论文

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  • 发表日期：

    2025年12月18日

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  • Wagih Sadik,
  • Abdelghaffar Eldemerdash,
  • Adel William Nashed,
  • Amr Ahmed Mostafa,
  • Elsayed Lamie

摘要

A variety of compounds have been treated with lit semiconductors for water pollution treatment. UV irradiation with oxidants or catalysts (TiO2) can remediate industrial effluent. The goal of this study is to prepare and characterize TiO2–SnO2 nanocomposites with different ratios to degradation dyes in wastewater treatment. These nanocomposites will be used to photocatalysis degradation of acid red 37 dye in aqueous solution using UV irradiation as a model pollutant. The characterization of TiO2–SnO2 nanocomposites was conducted using XRD, TEM, EDAX, FTIR, and XPS. The photocatalytic degradation was tested with several advanced oxidation processes (AOPs) by adding varying concentrations of SnO2 (0–20 wt.%), and then by employing an inorganic antioxidant (H2O2, Na2S2O8, NaIO4) with a ratio of UV/TiO2–SnO2 (90:10) to high efficiency of degradation of acid red 37 dye using a batch photoreactor. Consequently, the effects of pH, dye concentrations, and different loading (g/L) of nanocomposite on the photocatalytic activity of the SnO2–TiO2 nanocrystals were examined. The UV/TiO2–SnO2 (90:10) wt.% has higher photocatalytic efficiency for degradation acid red 37 dye from either TiO2, SnO2 or the other ratios in this study.