Preparation and Antivirial Application of Highly Efficient Near-infrared Responsive Phloxine B/g-C3N4
The synthesis of graphitic carbon nitride(g-C3N4)with remarkable photocatalytic and photothermal characterisitics was achieved through one step calcination process involving the utilization of Phloxine B and melamine as precursors.The morphology of the composites were unveiled through scanning electron microscopy and characterized by Fourier transform infrared spectroscopy.Subsequently,the capability of g-C3N4 for single oxygen generation,photothermal performance,and the inactivation of virus was conducted.This investigation involved comparative analyses before and after incorporation of Phloxine B,employing electron paramagnetic resonance(EPR)spectroscopy,assessments of photothermal performance,and photocatalytic antivirival experiments.The results indicate that the incorporation of Phloxine B into g-C3N4 leads to a notable capability to generate elevated levels of single oxygen under 808 nm light irradiation.Moreover,there exists a discernible rise in temperature observed over prolonged exposure to 808 light.Photocatalytic experiments targeting viral eradication have showcased remarkable efficacy against MS2 bacteriophage.A mere 5-minute exposure to light accomplishes a 99.99%deactivation rate of the MS2 bacteriophage.
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