研究目的
Investigating the construction and photocatalytic performance of ternary rGO/Ag2CO3/AgBr heterostructured photocatalyst under visible light irradiation.
研究成果
The ternary rGO/Ag2CO3/AgBr heterostructured photocatalyst exhibits enhanced photocatalytic activity and stability due to effective charge separation and enhanced visible-light absorption. This work provides insights for designing other Ag-based composites with improved photocatalytic activity for environmental applications.
研究不足
The study focuses on the photocatalytic degradation of RhB under visible light, and the stability of the photocatalyst was tested for only 5 cycles. The potential for scaling up and practical application in environmental pollution control needs further investigation.
1：Experimental Design and Method Selection:
The ternary rGO/Ag2CO3/AgBr photocatalyst was synthesized through an in-situ anion exchange route. The morphology, crystal structure, component, and optical property were characterized by SEM, XRD, XPS, and UV-vis DRS.
2：Sample Selection and Data Sources:
rGO/Ag2CO3 composites were synthesized by precipitation between AgNO3 and Na2CO3 aqueous solutions in the presence of graphene nanosheets. rGO/Ag2CO3/AgBr composites were synthesized using an in-situ anion exchange route.
3：List of Experimental Equipment and Materials:
SEM (JEOL JXA-840A), XRD (D8 advance, Bruker-AXS), XPS (ESCA-5000C X-ray photoelectron spectrometer), UV-visible spectrophotometer (UV2550, Shimadzu), Lambda 25UV/Vis spectrophotometer.
4：Experimental Procedures and Operational Workflow:
The photocatalytic capabilities were evaluated by photodegradation of RhB under visible light.
5：Data Analysis Methods:
The degradation rates were analyzed using a UV/Vis spectrophotometer.
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