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Facile synthesis of SnO2 2D nanoflakes for ultrasound-assisted photodegradation of tetracycline hydrochloride

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A Correction to this article was published on 19 February 2020

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Abstract

The present study demonstrates the facile synthesis of SnO2 (tin oxide) 2D nanoflakes (2-dimensional) for sonophotocatalytic tetracycline hydrochloride (TcH) degradation. TcH is known to be widely used antibiotic, but even minute concentrations of it make the aqueous environment unsafe for living beings. As-synthesized SnO2 was thoroughly characterized to reveal its morphology, crystal structure and other intrinsic properties. SnO2 2D nanoflakes possessed excellent photocatalytic TcH degradation under visible light. Preliminary investigation inferred that sonophotocatalytic mode of TcH degradation was efficient over other modes with respect to degradation efficiencies for 20 mg L−1 TcH and 20 mg of SnO2. The optimum degradation of TcH was observed to be 88.82% in 135 min under LED (9 W, 220 V) irradiation with 30 mg of SnO2 dosage and 40 kHz ultrasound. The degradation dynamics complied with pseudo-first-order kinetics where the kinetic rate constant (k) was 0.02 min−1. Hence, SnO2 2D nanoflakes were promising in mineralization of the biotoxin (TcH) in aqueous environments that accent its application to treat real-time water and wastewater.

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  • 19 February 2020

    The original version of this article unfortunately contained a mistake.

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Acknowledgements

The authors would like to thank the support of Mr. Anil Kumar KM and Mr. Midhun G, Ms. Pallavi S, and Dr. Pallavi N, research scholars in wet laboratory experiments and characterization, and it is highly appreciated. All the authors profusely thank the JSS Academy of Higher Education and Research, Mysuru, India, to have supported the study by providing the necessary facilities.

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Correspondence to H. P. Shivaraju.

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None of the authors have any competing interests in the manuscript.

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Editorial responsibility: Fatih ŞEN.

The original version of this article was revised due to correct the spelling of the fifth author's name.

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Yashas, S.R., Shivaraju, H.P., Thinley, T. et al. Facile synthesis of SnO2 2D nanoflakes for ultrasound-assisted photodegradation of tetracycline hydrochloride. Int. J. Environ. Sci. Technol. 17, 2593–2604 (2020). https://doi.org/10.1007/s13762-020-02636-w

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  • DOI: https://doi.org/10.1007/s13762-020-02636-w

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