研究目的
Investigating the photocatalytic properties of PtSe2/graphene nanocomposites for the degradation of methyl orange under visible light irradiation.
研究成果
The PtSe2/graphene nanocomposites synthesized via ultrasonic assisted method exhibited enhanced photocatalytic activity for the degradation of methyl orange under visible light irradiation, attributed to the uniform dispersion of PtSe2 nanoparticles on graphene sheets and their synergistic effects.
研究不足
The study focuses on the degradation of methyl orange as a model pollutant; the applicability to other pollutants or under different conditions was not explored. The scalability and cost-effectiveness of the synthesis method for industrial applications were not addressed.
1：Experimental Design and Method Selection:
The study utilized an ultrasonic assisted method for the synthesis of PtSe2/graphene nanocomposites. The photocatalytic activities were evaluated by the degradation of methyl orange under visible light.
2：Sample Selection and Data Sources:
Graphene oxide was prepared using the Hummer’s-Offeman method. Hydrogen hexachloroplatinate(IV) hydrate and selenium powder were used as precursors for PtSe
3：List of Experimental Equipment and Materials:
Equipment included X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-visible spectrophotometer, and diffuse reflectance spectra (DRS) analysis tools.
4：Experimental Procedures and Operational Workflow:
The synthesis involved ultrasonication of graphene oxide with PtSe2 precursors, followed by characterization and photocatalytic activity testing.
5：Data Analysis Methods:
The degradation efficiency was analyzed using UV-visible absorption spectra, and the kinetics were evaluated using the Langmuir-Hinshelwood model.
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