研究目的
To prepare graphene based CdSe and examine its self-decomposition effect for decomposition of methylene blue solution in dark without light irradiation.
研究成果
Graphene-CdSe composite exhibits self-decomposition effect for MB solution in dark due to the storage and transfer electrons effect of graphene nanosheet.
研究不足
The study focuses on the self-decomposition effect of graphene-CdSe composite in dark conditions, but the mechanism of electron storage and transfer by graphene nanosheets needs further investigation.
1：Experimental Design and Method Selection:
A facile hydrothermal method was used to prepare CdSe-TiO2 composite, graphene-CdSe composite, and graphene-TiO2 composite.
2：Sample Selection and Data Sources:
Sodium sulfite, selenium metal powder, cadmium acetate dihydrate, ammonium hydroxide, and graphene oxide were used as precursors.
3：List of Experimental Equipment and Materials:
BEL Sorp Analyzer for BET surface area measurement, X-ray diffraction (XRD, Shimadz XD-D1), scanning electron microscopy (SEM, JSM-5600), transmission electron microscopy (TEM, Jeol, JEM- 2010, Japan), UV-vis spectrophotometer (Neosys-2000).
4：0). Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The composites were prepared by hydrothermal reaction at 80 ℃ for 5 h.
5：Data Analysis Methods:
The decomposition of MB solution was analyzed by UV-vis spectrophotometer at wavelength of 665 nm.
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