研究目的
Investigating the construction of Ti3+ self-doped TiO2/BCN heterojunction with enhanced photoelectrochemical performance for water splitting.
研究成果
The Ti3+-TiO2/BCN heterojunction constructed via a hydrothermal method using NaBH4 as reducing agent exhibited enhanced photoelectrochemical performance for water splitting under visible-light irradiation compared with BCN and Ti3+-TiO2. The enhanced performance is attributed to the introduction of Ti3+ and oxygen vacancies, and the formation of heterojunction structure which decreases the recombination of photogenerated electron–hole pairs.
研究不足
The study focuses on the photoelectrochemical performance of Ti3+-TiO2/BCN heterojunction under visible light irradiation. The scalability and long-term stability of the heterojunction for practical applications are not discussed.
1：Experimental Design and Method Selection:
The Ti3+-TiO2/BCN heterojunction was constructed via a hydrothermal method using NaBH4 as reducing agent.
2：Sample Selection and Data Sources:
BCN nanosheets were prepared by pyrolyzation of thiourea and boric acid.
3：List of Experimental Equipment and Materials:
X-ray diffraction (XRD, D/max-2200), transmission electron microscope (TEM, JEM-3010), X-ray photoelectron spectroscopy (XPS, Kratos Axis Supra), Raman spectrometer (Nicolet Almega XR Dispersive Raman Spectrometer), UV–Vis spectrophotometer (The USA Lambda-950, Perkin Elmer).
4：Experimental Procedures and Operational Workflow:
The samples were characterized by XRD, TEM, HRTEM, XPS, Raman spectra, and UV–Vis diffuse reflectance spectra. Photoelectrochemical measurements were conducted on a CHI 760E electrochemical work station.
5：Data Analysis Methods:
The data were analyzed to confirm the enhanced photoelectrochemical performance of the Ti3+-TiO2/BCN heterojunction.
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