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

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

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.

Citation

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

• Acceptance Date: Jan 6, 2017
• Online Publication Date: Jan 16, 2017
• Publication Date: May 1, 2017
• Deposit Date: Feb 24, 2017
• Publicly Available Date: Jan 17, 2018
• Journal: Journal of materials science
• Print ISSN: 0022-2461
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 52
• Issue: 9
• Pages: 5256-5267
• DOI: https://doi.org/10.1007/s10853-017-0766-6
• Keywords: Ag-doped ZnO; Strong adsorption; Ketorolac thromethamine; Solar light; Photocatalysis
• Public URL: https://hull-repository.worktribe.com/output/448873
• Publisher URL: http://link.springer.com/article/10.1007/s10853-017-0766-6
• 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
• Contract Date: Jan 17, 2018