Abstract
Bio-mediated Ag-doped cuprous oxide nanoparticles (Ag@Cu2O NPs) were synthesised using Tabernaemontana divaricate leaves extract, as a reducing agent for the reduction Ag+ to Ag0. Synthesised Ag@Cu2O NPs were characterised by several techniques such as UV–Vis spectroscopy, FT-IR and XRD. Doping Ag onto Cu2O nanoparticles reduced the bandgap of Cu2O to 1.8 eV from 2.1 eV and enhanced photocurrent. The crystallite size of prepared Ag@Cu2O NPs was estimated to be 48 nm using Scherrer’s equation. The photocatalytic activity of Ag@Cu2O NPs was tested against 4-aminopyridine under visible light. The synthesised photocatalysis showed 95% degradation efficiency and 98% chemical oxygen demand removal for 4-aminopyridine at optimized conditions (4-aminopyridine: 5 ppm, catalyst dosage: 0.8 g/L and temperature 30 °C) after 235 min of reaction time at pH 3.
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Acknowledgements
I acknowledge my gratitude to the head, faculty and staff members of chemical engineering department, Dr. BR Ambedkar National Institute of Technology, Jalandhar, Punjab, India-144011, for providing me with requisite research facility, for their guidance and encouragement in carrying out this research work.
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Attri, P., Garg, S. & Ratan, J.K. Degradation of 4-aminopyridine using bio-mediated Ag-doped Cu2O nanoparticles under visible light. Nanotechnol. Environ. Eng. 7, 415–423 (2022). https://doi.org/10.1007/s41204-021-00182-5
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DOI: https://doi.org/10.1007/s41204-021-00182-5