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Photocatalytic degradation of ketorolac tromethamine (KTC) drug in aqueous phase using prepared Ag-doped ZnO microplates

Ibhadon, Alex O.; Kaur, Amandeep; Ibhadon, Alex; Kansal, Sushil Kumar

Authors

Alex O. Ibhadon

Amandeep Kaur

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Dr Alex Ibhadon A.O.Ibhadon@hull.ac.uk
Reader in Catalysis and Reactor Engineering

Sushil Kumar Kansal



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 showed 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.

Publication Date May 1, 2017
Journal Journal of materials science
Print ISSN 0022-2461
Electronic ISSN 1573-4803
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 52
Issue 9
Pages 5256-5267
Institution Citation Ibhadon, A. O., Kaur, A., Ibhadon, A., & Kansal, S. K. (2017). Photocatalytic degradation of ketorolac tromethamine (KTC) drug in aqueous phase using prepared Ag-doped ZnO microplates. Journal of materials science, 52(9), 5256-5267. https://doi.org/10.1007/s10853-017-0766-6
DOI https://doi.org/10.1007/s10853-017-0766-6
Keywords Ag-doped ZnO; Strong adsorption; Ketorolac thromethamine; Solar light; Photocatalysis
Publisher URL http://link.springer.com/article/10.1007/s10853-017-0766-6
Copyright Statement ©2018 University of Hull
Additional Information Authors' accepted manuscript of article published in: Journal of materials science, 2017, v.52 issue 9. The final publication is available at Springer via http://dx.doi.org/10.1007/s10853-017-0766-6

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