研究目的
To develop an efficient sunlight-driven heterogeneous Fenton catalyst for the degradation of phenol, specifically by doping Sn4+ into FeOCl to enhance catalytic activity and production of hydroxyl radicals.
研究成果
Sn4+ doped FeOCl significantly enhances the photo-Fenton catalytic activity for phenol degradation under sunlight, attributed to increased optical adsorption, surface area, and production of hydroxyl radicals due to exposed active sites and synergistic effects between Fe and Sn ions. The catalyst shows good stability and potential for environmental applications.
研究不足
The study is limited to laboratory-scale experiments under controlled conditions; scalability and real-world application in diverse environmental conditions are not addressed. The catalyst's performance may vary with different pollutants or water matrices.
1：Experimental Design and Method Selection:
The study involved synthesizing Sn4+ doped FeOCl via a facile calcination method, followed by characterization using DFT calculations, XRD, SEM, TEM, FTIR, UV-vis spectroscopy, XPS, and N2 adsorption-desorption isotherms. Catalytic degradation experiments were conducted under simulated sunlight in a neutral solution.
2：Sample Selection and Data Sources:
Samples included FeOCl and Sn4+/FeOCl with 1.08% Sn4+ doping. Data were obtained from experimental measurements and computational simulations.
3：08% Sn4+ doping. Data were obtained from experimental measurements and computational simulations.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Equipment included instruments for XRD, SEM, TEM, FTIR, UV-vis, XPS, and N2 adsorption-desorption. Materials included FeOCl, Sn4+ precursors, H2O2, phenol, benzoquinone (BQ), and iso-propyl alcohol (IPA).
4：Experimental Procedures and Operational Workflow:
Synthesis of Sn4+/FeOCl, characterization of structural and optical properties, catalytic degradation tests with phenol, active species trapping using BQ and IPA, H2O2 decomposition measurements, and adsorption experiments.
5：Data Analysis Methods:
Data were analyzed using DFT calculations for structural and adsorption energy analysis, Arrhenius equation for kinetics, and various spectroscopic techniques for material characterization.
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