研究目的
Developing low cost, stable, robust photocatalysts to convert solar energy into hydrogen energy.
研究成果
The Ni2P/TiO2(B) catalyst displayed excellent stability during cycling tests and the H2 evolution rate reached 20.129 mmol g?1 h?1 at 90 °C. The Ni2P quantum dots promote charge transfer, hinder charge recombination and accelerate the reaction rate.
研究不足
The efficiency of pure TiO2(B) nanosheets is still far from ideal due to fast carrier recombination and sluggish reaction kinetics.
1：Experimental Design and Method Selection:
A simple solvothermal method was used to fabricate a hybrid 0D/2D Ni2P quantum dot/TiO2(B) nanosheet architecture.
2：Sample Selection and Data Sources:
2D ultra-thin TiO2(B) nanosheets were synthesized and used as the base material. Ni2P quantum dots were anchored on the nanosheets.
3：List of Experimental Equipment and Materials:
Field emission scanning electron microscopy (FESEM), field emission transmission electron microscopy (FETEM), X-ray photoelectron spectra (XPS), UV–vis diffuse reflectance spectra (UV–vis DRS), photoluminescence (PL) measurements.
4：Experimental Procedures and Operational Workflow:
The Ni2P/TiO2(B) composites were prepared through a solvothermal reaction. The photocatalytic H2 evolution was tested under visible light irradiation.
5：Data Analysis Methods:
The performance of the photocatalysts was evaluated by measuring the H2 evolution rate under visible light irradiation.
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Field emission scanning electron microscopy
ZEISS SIGMA 500
ZEISS
Examine the sample morphologies
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Field emission transmission electron microscopy
FEI TECNAI G2 20 S-TWIN
FEI
Examine the sample morphologies
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High-resolution transmission electron microscopy
FEI Titan G2 60-300
FEI
Examine the sample morphologies
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X-ray photoelectron spectrometer
ESCALAB 250Xi
Thermo Scientific
Collect X-ray photoelectron spectra
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UV–vis spectrophotometer
SHIMADZU UV-3600
SHIMADZU
Obtain UV–vis diffuse reflectance spectra
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