研究目的
To explore the catalytic performance of β-FeOOH@GO as a Fenton-like catalyst for the degradation of methylene blue (MB), a representative dyestuff, and to identify the degradation intermediates and possible catalytic degradation mechanism.
研究成果
The β-FeOOH@GO+H2O2+UV Fenton-like system is highly efficient in treating high concentration organic pollutants at a broad pH range. The degradation intermediates of MB were fully identified, and the technology does not produce more toxic intermediates. β-FeOOH@GO could be a promising bifunctional composite for environmental applications.
研究不足
The study focuses on the degradation of MB and may not be directly applicable to other organic pollutants. The scalability and practical application of the β-FeOOH@GO catalyst in real wastewater treatment need further investigation.
1：Experimental Design and Method Selection:
The study involved the synthesis of β-FeOOH@GO nanocomposite through facile hydrolysis and its application in the photo-Fenton-like degradation of MB. The methodology included UV-Vis spectrophotometry, TOF-SIMS, LC-MS, and XPS for analysis.
2：Sample Selection and Data Sources:
MB was chosen as a model refractory organic pollutant. The samples were analyzed using various spectroscopic and chromatographic techniques.
3：List of Experimental Equipment and Materials:
High-pressure mercury UV lamp (Phillips GGY125Z), UV-Vis spectrophotometer, TOF-SIMS V system (IONTOF GmbH Inc.), Waters Acquity UPLC/MS, EPR spectrometer (JES-FA200, Bruker).
4：Experimental Procedures and Operational Workflow:
The degradation experiment was performed by adding β-FeOOH@GO and H2O2 into MB solution under UV irradiation. Samples were withdrawn at predetermined intervals for analysis.
5：Data Analysis Methods:
The data were analyzed using UV-Vis spectrophotometry, TOF-SIMS, LC-MS, and XPS to identify degradation intermediates and elucidate the degradation mechanism.
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