研究目的
Improving the separation degree of photogenerated carriers of BiVO4 by optimizing the cooling rate during its synthesis to enhance its photocatalytic performance.
研究成果
Optimizing the cooling rate during BiVO4 synthesis significantly improves its photocatalytic performance by enhancing (040) facets exposure, morphology, and carrier separation, leading to efficient degradation of doxycycline.
研究不足
The study focuses on the effect of cooling rate on BiVO4 properties and does not explore other synthesis parameters or composite materials for further enhancement.
1：Experimental Design and Method Selection:
BiVO4 was synthesized by hydrothermal methods with varying cooling rates to study the effect on (040) facets exposure and photocatalytic performance.
2：Sample Selection and Data Sources:
BiVO4 samples were prepared at cooling rates of 100℃/h, 50℃/h, and 20℃/h.
3：List of Experimental Equipment and Materials:
Hydrothermal synthesis setup, Bi(NO3)3·5H2O, NH4VO3, NaOH, HNO3, and Teflon-lined autoclaves.
4：Experimental Procedures and Operational Workflow:
Dissolution of precursors, pH adjustment, hydrothermal treatment at 180℃ for 12 h, cooling at specified rates, and characterization.
5：Data Analysis Methods:
XRD for crystalline phases, SEM for morphology, photoluminescence spectra for carrier separation, and UV-vis DRS for optical properties.
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