研究目的
To investigate the efficiency of Fe2P/g-C3N4 hybrid as a noble-metal-free cocatalyst for photocatalytic hydrogen generation under visible light irradiation.
研究成果
Fe2P acts as an effective and stable noble-metal-free cocatalyst for enhancing the photocatalytic activities of g-C3N4 for H2 generation. The efficient charge separation and electron transfer from g-C3N4 to Fe2P lead to improved photocatalytic H2 generation under visible light irradiation.
研究不足
The study focuses on the photocatalytic activity under visible light irradiation and does not explore the performance under other light conditions or the long-term stability of the photocatalyst beyond three cycles.
1：Experimental Design and Method Selection:
The study involved the synthesis of Fe2P and its hybridization with g-C3N4 to form a composite photocatalyst. The photocatalytic activity was evaluated under visible light irradiation.
2：Sample Selection and Data Sources:
Fe2P was synthesized from FeCl3·H2O and NaH2PO2, and g-C3N4 was prepared by calcination of melamine. The composite was characterized by XRD, XPS, TEM, SEM, UV-vis DRS, and PL spectra.
3：List of Experimental Equipment and Materials:
Instruments used include XRD (Rigaku, SmartLab), XPS (Shimadzu AXIS-165x), TEM (JEOL, JEM3000F), UV–vis-NIR spectrophotometers (Jasco, V-770), and fluorescence spectrometer (Hitachi F-7000).
4：0). Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The photocatalytic H2 generation was conducted in a quartz tube under visible light irradiation, with the volume of H2 quantified using a gas chromatograph (Shimadzu GC-8A).
5：Data Analysis Methods:
The photocatalytic activity was analyzed based on the H2 generation rate, and the charge separation efficiency was evaluated through PL spectra and photoelectrochemical measurements.
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UV–vis-NIR spectrophotometers
V-770
Jasco
Measurement of UV–vis absorption and diffuse reflectance spectra
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Fluorescence spectrometer
F-7000
Hitachi
Measurement of photoluminescence spectra
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Gas chromatograph
GC-8A
Shimadzu
Quantification of H2 volume
GC-8A Series Gas Chromatograph
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X-ray diffraction
SmartLab
Rigaku
Characterization of crystalline structures
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X-ray photoelectron spectroscopy
AXIS-165x
Shimadzu
Examination of chemical compositions
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Transmission electron microscopy
JEM3000F
JEOL
Morphology characterization
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