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Photocatalytic degradation of ketorolac tromethamine (KTC) using Ag-doped ZnO microplates

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Abstract

In this study, Ag-doped ZnO microplates were prepared via precipitation technique and further characterized by FESEM, EDS, XRD, FTIR, TGA, XPS, UV-DRS and RT-PL techniques. The outcomes indicated that Ag+ ions were well incorporated into ZnO lattice leading to the absorption of ZnO in visible region as well as effective charge separation. The photocatalytic experiments exhibited that Ag-doped ZnO microplates show higher catalytic activity (91%) than bare ZnO (71%) for the degradation of KTC drug under solar illumination. The photocatalytic degradation of KTC drug over Ag-doped ZnO microplates obeyed pseudo first-order kinetics model. Also, the role of active species was examined by the addition of several scavengers in the photocatalytic degradation system. The results indicated that h+, ·OHs, 1O2 and ·OH were considered as prime reactive species in photocatalytic degradation process.

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Acknowledgement

The authors greatly acknowledge the TEQIP-II Grant of Dr. S. S. Bhatnagar UICET, Panjab University, Chandigarh, for funding.

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Authors and Affiliations

  1. Dr. S.S. B. University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh, India

    Amandeep Kaur & Sushil Kumar Kansal

  2. Department of Chemical Engineering, School of Engineering, University of Hull, Cottingham Road, Hull, HU6 7RX, UK

    Alex O. Ibhadon

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  1. Amandeep Kaur
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  2. Alex O. Ibhadon
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Correspondence to Sushil Kumar Kansal.

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Kaur, A., Ibhadon, A.O. & Kansal, S.K. Photocatalytic degradation of ketorolac tromethamine (KTC) using Ag-doped ZnO microplates. J Mater Sci 52, 5256–5267 (2017). https://doi.org/10.1007/s10853-017-0766-6

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  • DOI: https://doi.org/10.1007/s10853-017-0766-6

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