Abstract
In this (scenario) research work, the CQDs@g-C3N4 two-step-scheme nanocomposite was fabricated by a simple two-step hydrothermal/calcination process. The crystalline phase and morphological features of the materials were investigated by P-XRD, SEM, EDAX, and TEM. The designed CQDs@g-C3N4 nanocomposite was fruitfully formed, and the improved light absorption capability was tested with the photocatalytic activity of (Rhodamine B) RhB and (Ofloxacin) OFL. The CQDs@g-C3N4 nanocomposite shows enhanced activity in the degradation of RhB, and OFL and corresponds to a low recombination rate of charge carriers. Under optimized experimental conditions, the photocatalytic activities of pollutants (RhB & OFL) over CQDs@g-C3N4 can accomplish 94.3 and 99.5% within 30 and 60 min irradiation with visible light. The trapping experiments exhibited that \({\text{O}}_{2}^{ \cdot - }\), \(\cdot {\text{OH}}\), and intermediate mineralized compounds were involved in the catalysis process. Furthermore, the CQDs@g-C3N4 photocatalyst has remarkable storage stability after several consecutive runs. This research work presents a new platform for an effective route of heterostructures for environmental water contaminant treatments.
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PK: Collection of background information, formulate research plans, performing experiments, Manuscript draft Original draft, Editing, and Review, GL: Characterization, preparation Conceptual, SM: Validation, Writing—review, MA: Formal review and Methodology, Data curation, SGB: Characterization, Editing, and Review.
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Prakash, K., Lakshmi, G., Muralidharan, S. et al. Rational construction of metal‑free carbon quantum dots/graphitic carbon nitride composite photocatalyst for mitigation of organic containments. Res Chem Intermed 49, 3787–3805 (2023). https://doi.org/10.1007/s11164-023-05046-y
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DOI: https://doi.org/10.1007/s11164-023-05046-y