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<p>The light-induced reduction of a harmful organic dye, such as Rose Bengal, by the nanocomposite rGO/Cu-TiO<sub>2</sub> is studied using various characterizations, including UV spectrum analysis, X-ray diffractometer-based diffraction studies, and SEM and TEM studies for morphological analysis. The most suitable experimental conditions for enhanced photocatalytic reduction behavior are identified. Cu-TiO<sub>2</sub> and rGO/Cu-TiO<sub>2</sub> nanocomposite were synthesized by a co-precipitation technique. Synthesis of rGO/Cu-TiO<sub>2</sub> nanocomposite includes Standard Hummer’s method of preparation of Graphene Oxide and hydrothermal processing and precipitation of rGO/CuTiO<sub>2</sub> nanocomposite. Light-induced reduction of Rose Bengal Dye by compounds, such as graphene oxide and CuTiO<sub>2</sub>, was also studied, in addition to the nanocomposite rGO/CuTiO<sub>2</sub>. It is found that a calcination temperature of 450°C exhibits superior degradation behavior. Additionally, 30 mg of nanocomposite can efficiently degrade a 10<sup>–4</sup> M concentration of Rose Bengal at a pH of 9.0.</p>

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Influence of rGO/Cu-TiO2 Nanocomposite on Photo-Degradation Rose Bengal Dye Pollutant

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • V. Manikandan,
  • U. Krishnamoorthy,
  • P. Thangamani

摘要

The light-induced reduction of a harmful organic dye, such as Rose Bengal, by the nanocomposite rGO/Cu-TiO2 is studied using various characterizations, including UV spectrum analysis, X-ray diffractometer-based diffraction studies, and SEM and TEM studies for morphological analysis. The most suitable experimental conditions for enhanced photocatalytic reduction behavior are identified. Cu-TiO2 and rGO/Cu-TiO2 nanocomposite were synthesized by a co-precipitation technique. Synthesis of rGO/Cu-TiO2 nanocomposite includes Standard Hummer’s method of preparation of Graphene Oxide and hydrothermal processing and precipitation of rGO/CuTiO2 nanocomposite. Light-induced reduction of Rose Bengal Dye by compounds, such as graphene oxide and CuTiO2, was also studied, in addition to the nanocomposite rGO/CuTiO2. It is found that a calcination temperature of 450°C exhibits superior degradation behavior. Additionally, 30 mg of nanocomposite can efficiently degrade a 10–4 M concentration of Rose Bengal at a pH of 9.0.