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Multifunctional performance of gC3N4-BiFeO3-Cu2O hybrid nanocomposites for magnetic separable photocatalytic and antibacterial activity

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A Correction to this article was published on 22 July 2020

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Abstract

Highly active gC3N4-BiFeO3-Cu2O nanocomposites were successfully prepared via a facile, cost effective and eco-friendly method of hydrothermally wet precipitation combined with ultrasonic dispersion process. The prepared samples were characterized by XRD, FTIR, HRSEM, EDS, TEM, UV–Vis DRS, PL, VSM, BET and electrochemical properties. By means of these analysis for examine the crystal phase, nanostructure, band gap and light-harvesting properties were carried out. UV-DRS spectra indicate that the bandgap of g-C3N4 (2.7 eV) reduced to 2.59 and 2.21 eV by mixed with corresponds to BiFeO3 and BiFeO3/Cu2O nanomaterials. The ideal photocatalytic activity of the gC3N4-BiFeO3-Cu2O nanocomposites, where RhB dye under visible light irradiation which was up to 4.36 and 2.52 times as the higher photodegradation ability to compare pristine g-C3N4 and gC3N4-BiFeO3 catalyst. The magnetization was confirmed by VSM studies, and hence, after the photocatalytic reaction, the magnetically separable catalyst can be quickly separated from the water by an external magnetic field. The superior photocatalytic performance is due to the synergistic effect on the interface of BiFeO3/Cu2O in the gC3N4-BiFeO3-Cu2O nanocomposites has reduced the bandgap which enables high separation efficiency of the charge carrier, suppressed recombination rate and their high surface area. Moreover, the chief gC3N4-BiFeO3-Cu2O catalyst can exhibited the lesser charge transfer resistance (impedance), enhances of photocurrent responses, whereas exposed to the development of photocatalytic appearance and more charge carrier ability. Also, the antibacterial activity of the gC3N4-BiFeO3-Cu2O nanocomposite has showing a well deactivation in both G+ (S. aureus) and G− (E. coli) bacteria’s whereas compare to other prepared samples.

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  • 22 July 2020

    In the original version of this article, Figs. 4, 12, and 17 were inadvertantly published with errors. The original versions of Figures 4, 12 and 17 have now been corrected by publishing this correction article. Also, the title has now been updated to ���Multifunctional performance of gC3N4-BiFeO3-Cu2O hybrid nanocomposites for magnetic separable photocatalytic performance and antibacterial activity���. This has been corrected with this erratum.

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  1. Materials Science Laboratory, Department of Physics, Periyar University, Salem, Tamil Nadu, 636 011, India

    Shanmugam Vignesh & Jeyaperumal Kalyana Sundar

  2. Department of Physics, ERK Arts and Science College, Dharmapuri, Tamil Nadu, 636 905, India

    Anna Lakshmi Muppudathi

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Vignesh, S., Muppudathi, A.L. & Sundar, J.K. Multifunctional performance of gC3N4-BiFeO3-Cu2O hybrid nanocomposites for magnetic separable photocatalytic and antibacterial activity. J Mater Sci: Mater Electron 29, 10784–10801 (2018). https://doi.org/10.1007/s10854-018-9144-7

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