研究目的
To synthesize and characterize morphology-controllable BiFeO3 particles with efficient photocatalytic activity.
研究成果
High crystalline quality of BFO particles were synthesized by varying NaOH concentrations. The morphology changes from alveolate BFO to cubic BFO with increasing NaOH concentration. The alveolate BFO particles showed higher photocatalytic efficiency compared to cubic BFO particles.
研究不足
The study focuses on the synthesis and characterization of BFO particles with different morphologies and their photocatalytic activity, but does not explore the long-term stability or recyclability of the photocatalysts.
1：Experimental Design and Method Selection:
High purity BFO particles were prepared by a simple and surfactant-free hydrothermal method by varying the sodium hydroxide (NaOH) concentration.
2：Sample Selection and Data Sources:
The raw chemicals bismuth nitrate (Bi(NO3)3·5H2O), iron nitrate (Fe(NO3)3·9H2O) and NaOH were used without further purification.
3：List of Experimental Equipment and Materials:
X-ray diffractometer, field emission scanning electron microscope (FE-SEM), energy-dispersive spectrometer (EDS), Fourier transform infrared spectroscopy (FTIR), UV–vis spectrophotometer.
4：Experimental Procedures and Operational Workflow:
The hydrothermal method was used to synthesize BFO particles at 190 °C for 10 h with varying NaOH concentrations.
5：Data Analysis Methods:
The photocatalytic performances were investigated by the degradation of MB aqueous solution under visible light irradiation.
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