研究目的
Investigating the photocatalytic degradation of orange II using H2O2 sensitized Cu2O under visible light irradiation.
研究成果
The study demonstrates that orange II can be successfully degraded under visible light using Cu2O as a photocatalyst, with the rate of degradation enhanced by the addition of H2O2. The formation of ?OH free radicals, confirmed through photoluminescence studies, plays a crucial role in the degradation process.
研究不足
The study is limited to the use of Cu2O and H2O2 under visible light irradiation for the degradation of orange II. The applicability to other azo-dyes or under different conditions is not explored.
1：Experimental Design and Method Selection:
The study involves the use of Cu2O as a photocatalyst sensitized with H2O2 under visible light irradiation for the degradation of orange II.
2：Sample Selection and Data Sources:
AR grade Cu2O obtained from Sigma Aldrich and Orange-II from Merck India Ltd. were used.
3：List of Experimental Equipment and Materials:
X-ray diffractometer (PANalytical-X’ Pert PRO, Japan), 400 W metal halide lamp,
4：45 μ Millipore filters, fluorescence spectroflourometer (Flouromax 4). Experimental Procedures and Operational Workflow:
The photocatalytic activity was assessed by irradiating a mixture of Cu2O, orange II, and H2O2 under visible light and monitoring the degradation through absorption spectra.
5：Data Analysis Methods:
The extent of degradation was calculated using the formula provided, and the formation of ?OH free radicals was confirmed through photoluminescence studies.
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