研究目的
Investigating the photoelectrocatalytic degradation of organometallic triphenyltin chloride (TPTCl) using a novel FTO-TiO2 transparent photoanode and coupling with photoelectro-Fenton (PEC-PEF) for enhanced efficiency.
研究成果
The FTO-TiO2 photoanode demonstrated excellent stability and efficiency for the degradation and mineralization of organic pollutants, including TPTCl, through dark PEC and PEC-PEF processes. The study provides insights into the mechanisms of photoelectrocatalysis and the potential for application in wastewater treatment.
研究不足
The study focuses on the degradation of specific pollutants (phenol and TPTCl) under controlled conditions. The scalability and economic feasibility of the process for industrial applications were not addressed.
1：Experimental Design and Method Selection:
The study involved the synthesis of a TiO2-FTO photoanode using spin-coating and annealing, followed by characterization and testing in a photoelectrolytic cell.
2：Sample Selection and Data Sources:
Phenol and TPTCl were used as model pollutants.
3：List of Experimental Equipment and Materials:
Included FTO coated glass slides, titanium(IV) butoxide, 1-butanol, poly (ethylene glycol), and other chemicals. Equipment included a potentiostat, FESEM, XPS, Raman spectrometer, and HPLC.
4：Experimental Procedures and Operational Workflow:
The photoanode was tested in a three-electrode setup under various potentials and UV irradiation.
5：Data Analysis Methods:
Included cyclic voltammetry, electrochemical impedance spectroscopy, and analysis of degradation by-products.
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Field emission scanning electron microscopy
JEOL-JSM-6701F-FESEM
JEOL
Characterization of the TiO2-FTO photoanode.
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X-ray photoelectron spectroscopy
Kratos AXIS UltraDLD
Kratos
Surface elemental composition analysis.
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High-Performance Liquid Chromatography
Agilent 1200
Agilent
Monitoring the decay of pollutants.
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Total organic carbon analyzer
Shimadzu VCSH
Shimadzu
Analysis of mineralization degree.
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LC-MS/MS
1200 Infinity Series LC Agilent instrument equipped with a 6490 Triple Quad MS Spectrometer
Agilent
Measurement of TPTCl and identification of degradation by-products.
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Fluorine doped tin oxide coated glass slides
50mm×50mm, less than 7 Ω/sq
Sigma-Aldrich
Used as the substrate for the TiO2 photoanode.
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Titanium(IV) butoxide
97%
Sigma-Aldrich
Precursor for the TiO2 layer deposition.
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Potentiostat
Autolab PGSTAT204
Used for electrochemical measurements.
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Raman spectrometer
Horiba Jobin Yvon Modular Raman Spectrometer
Horiba
Structural characterization of the TiO2 layer.
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