研究目的
To synthesize highly luminescent carbon dots (GCDs) from Citrus limetta waste pulp via a facile one-step pyrolysis method and explore their multifunctional applications in photo-electrochemical water splitting, photocatalytic dye degradation, metal ion sensing, bactericidal activity, and bioimaging.
研究成果
The study successfully synthesized highly luminescent GCDs from Citrus limetta waste pulp with a quantum yield of 63.3%. These GCDs demonstrated excellent performance in photo-electrochemical water splitting, photocatalytic dye degradation, Fe(III) ions sensing, bactericidal activity, and bioimaging, showcasing their potential in various application domains.
研究不足
The study focuses on the synthesis and application of GCDs from a specific waste source (Citrus limetta pulp). The scalability of the synthesis method and the long-term stability of GCDs in various applications need further investigation.
1：Experimental Design and Method Selection:
GCDs were synthesized via a one-step pyrolysis method using Citrus limetta waste pulp as a carbon precursor. The synthesis conditions were optimized at 190°C for 20 minutes.
2：Sample Selection and Data Sources:
Citrus limetta waste pulp was used as the sole carbon source.
3：List of Experimental Equipment and Materials:
A hot air oven for pyrolysis, UV-Vis spectrophotometer (Hitachi, U-3900-H), fluorescence spectrophotometer (PL, Carry-Varian), HR-TEM (H-7500, Hitachi Ltd., Japan), FT-IR (Varian 670 IR), and Raman spectrometer (inVia instrument, Renishaw, λex= 785 nm).
4：Experimental Procedures and Operational Workflow:
The pyrolysis product was dissolved in deionized water and purified using a dialysis membrane. The GCDs were characterized for their optical, structural, and morphological properties.
5：Data Analysis Methods:
The quantum yield was calculated against quinine sulphate as a reference dye. The photocatalytic and PEC performances were evaluated using standard protocols.
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