研究目的
This work proposes the elimination and transformation of a beta-lactam antibiotic, oxacillin, from environmental waste to graphene quantum dots (GQDs).
研究成果
This work offers an advantageous manner to remove contaminants from the environment with the benefit of synthesizing nanomaterials with exceptional optical features and sensing applications. This idea brings both social and economic gains since it proposes the transformation into new graphitic nanoparticles with potential applications from a pollutant that was recycled by an easy recovery process, being in-line to green chemistry.
研究不足
The study focuses on the transformation of oxacillin residues into GQDs and their optical properties, but does not extensively explore the potential environmental impacts or scalability of the synthesis process.
1：Experimental Design and Method Selection:
The study involved the synthesis of graphene quantum dots (GQDs) from oxacillin residues using thermal and acidic conditions, with and without ethylenediamine (EDA).
2：Sample Selection and Data Sources:
Oxacillin residues were extracted from enriched river waters using a solid phase extraction (SPE) method.
3：List of Experimental Equipment and Materials:
Equipment included a Photon Technology International QuantaMaster? spectro?uorometer, a time correlated single photon counting spectrometer, an AFM/Confocal/Raman spectrometer, a Bruker Tensor37 attenuated total re?ection Fourier transform infrared (ATR-FT-IR) spectrophotometer, a Zetasizer Nano ZSP, and a transmission electron microscope (TEM) model JEOL JEM 2010. Materials included oxacillin sodium salt monohydrate, ethylenediamine (EDA), and sulfuric acid.
4：Materials included oxacillin sodium salt monohydrate, ethylenediamine (EDA), and sulfuric acid.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: GQDs were synthesized by heating oxacillin in sulfuric acid with and without EDA in a thermoreactor. The resulting GQDs were characterized using various spectroscopic and microscopic techniques.
5：Data Analysis Methods:
The optical properties of the GQDs were analyzed using fluorescence emission and absorption spectra, Raman and IR spectra, and zeta potential measurements.
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