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  • Title: Construction of SnO2/g-C3N4 an effective nanocomposite for photocatalytic degradation of amoxicillin and pharmaceutical effluent.
    Author: Nivetha MRS, Kumar JV, Ajarem JS, Allam AA, Manikandan V, Arulmozhi R, Abirami N.
    Journal: Environ Res; 2022 Jun; 209():112809. PubMed ID: 35104479.
    Abstract:
    The current study mainly focused on the fabrication of 2D graphitic carbon nitride-supported tin oxide nanoparticles (SnO2/g-C3N4) for the effective degradation of Amoxicillin (AMX). Tin oxide (SnO2) NPs were prepared by green and easy modification technique, and then it is decorated over g-C3N4 nanosheets. The structural morphology and surface composition of the synthesized SnO2/g-C3N4 nanocomposite were fully analysed by UV-Vis, XRD, XPS, and HR-SEM with EDAX, FT-IR, and BET analysis. The (HR-TEM) microscopy, the size of SnO2 NPs which as a diameter is about 6.2 nm. The Raman analysis revealed that the SnO2/g-C3N4 composite had a moderate graphitic structure, with a measured ID/Ig value of 0.79. The degradation efficiency of antibiotic pollutant AMX and pharma effluent treatment was monitored by UV spectroscopy. The optical band gap of SnO2 (2.9 eV) and g-C3N4 (2.8 eV) photocatalyst was measured by Tauc plots. To investigate the mechanism through the photodegradation efficiency of the catalyst was analysed by using different Scavenger EDTA-2Na holes (h+) has a greater contribution towards the degradation process. Under visible irradiation, SnO2/g-C3N4 nanocomposite has exhibited an excellent degradation performance of 92.1% against AMX and 90.8% for pharmaceutical effluent in 80 min.
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