Photocatalytic degradation of tetracycline by Fe-doped mechanically activated SrTiO3 powders in aqueous solution
Mechanically activated strontium titanate (SrTiO3) powders with various iron (III)oxide (Fe2O3) doping levels (1.5, 3, and 6 wt%) were prepared by solid state method. Due to the possibility of iron ion incorporation in SrTiO3 onto Sr2+ and/or Ti4+ sites a detailed analysis of the influence of dopant...
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International Institute for the Science of Sintering, Beograd
2024-01-01
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| Series: | Science of Sintering |
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| Online Access: | https://doiserbia.nb.rs/img/doi/0350-820X/2024/0350-820X2400047Z.pdf |
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| author | Živojinović Jelena Peleš-Tadić Adriana Kosanović Darko Dinić Ivana Vuković Marina Obradović Nina |
| author_facet | Živojinović Jelena Peleš-Tadić Adriana Kosanović Darko Dinić Ivana Vuković Marina Obradović Nina |
| author_sort | Živojinović Jelena |
| collection | DOAJ |
| description | Mechanically activated strontium titanate (SrTiO3) powders with various iron (III)oxide (Fe2O3) doping levels (1.5, 3, and 6 wt%) were prepared by solid state method. Due to the possibility of iron ion incorporation in SrTiO3 onto Sr2+ and/or Ti4+ sites a detailed analysis of the influence of dopants on the microstructure, morphology, optical properties and photocatalytic activity was conducted. The XRD analysis showed that iron was incorporated into the lattice of SrTiO3 particles. In the case of a lower concentration of dopant (1.5 wt%), there was a significant relative contribution of the substitution of Sr2+ ions by Fe3+ ions. In contrast, substituting Ti4+ ions with Fe3+ ions dominated samples with an increased concentration. Optical measurements indicated a shift of the absorption edge to higher values of wavelengths where the lowest value of the band gap (Eg=1.85 eV) was for the longest activation time (120 min) and the highest weight percentages of dopant (6 wt%). All samples have degraded tetracycline (TC) where degradation increases with longer irradiation time and dopant concentration. The highest degradation at 43 % was for 120 min activated sample with 6 wt% of Fe2O3. |
| format | Article |
| id | doaj-art-82b27941c7954255af807205d9a18de3 |
| institution | Kabale University |
| issn | 0350-820X 1820-7413 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | International Institute for the Science of Sintering, Beograd |
| record_format | Article |
| series | Science of Sintering |
| spelling | doaj-art-82b27941c7954255af807205d9a18de32025-01-30T06:46:27ZengInternational Institute for the Science of Sintering, BeogradScience of Sintering0350-820X1820-74132024-01-0156453554910.2298/SOS241011047Z0350-820X2400047ZPhotocatalytic degradation of tetracycline by Fe-doped mechanically activated SrTiO3 powders in aqueous solutionŽivojinović Jelena0https://orcid.org/0000-0002-2977-7134Peleš-Tadić Adriana1https://orcid.org/0000-0002-4970-5306Kosanović Darko2https://orcid.org/0000-0002-0819-8539Dinić Ivana3https://orcid.org/0000-0002-0909-8230Vuković Marina4https://orcid.org/0000-0001-5824-3484Obradović Nina5https://orcid.org/0000-0002-7993-293XInstitute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, SerbiaInstitute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, SerbiaInstitute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, SerbiaInstitute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, SerbiaInstitute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, SerbiaInstitute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, SerbiaMechanically activated strontium titanate (SrTiO3) powders with various iron (III)oxide (Fe2O3) doping levels (1.5, 3, and 6 wt%) were prepared by solid state method. Due to the possibility of iron ion incorporation in SrTiO3 onto Sr2+ and/or Ti4+ sites a detailed analysis of the influence of dopants on the microstructure, morphology, optical properties and photocatalytic activity was conducted. The XRD analysis showed that iron was incorporated into the lattice of SrTiO3 particles. In the case of a lower concentration of dopant (1.5 wt%), there was a significant relative contribution of the substitution of Sr2+ ions by Fe3+ ions. In contrast, substituting Ti4+ ions with Fe3+ ions dominated samples with an increased concentration. Optical measurements indicated a shift of the absorption edge to higher values of wavelengths where the lowest value of the band gap (Eg=1.85 eV) was for the longest activation time (120 min) and the highest weight percentages of dopant (6 wt%). All samples have degraded tetracycline (TC) where degradation increases with longer irradiation time and dopant concentration. The highest degradation at 43 % was for 120 min activated sample with 6 wt% of Fe2O3.https://doiserbia.nb.rs/img/doi/0350-820X/2024/0350-820X2400047Z.pdfmechanical activationfe-srtio3 systemceramicsantibiotic removalvisible light photocatalysis |
| spellingShingle | Živojinović Jelena Peleš-Tadić Adriana Kosanović Darko Dinić Ivana Vuković Marina Obradović Nina Photocatalytic degradation of tetracycline by Fe-doped mechanically activated SrTiO3 powders in aqueous solution Science of Sintering mechanical activation fe-srtio3 system ceramics antibiotic removal visible light photocatalysis |
| title | Photocatalytic degradation of tetracycline by Fe-doped mechanically activated SrTiO3 powders in aqueous solution |
| title_full | Photocatalytic degradation of tetracycline by Fe-doped mechanically activated SrTiO3 powders in aqueous solution |
| title_fullStr | Photocatalytic degradation of tetracycline by Fe-doped mechanically activated SrTiO3 powders in aqueous solution |
| title_full_unstemmed | Photocatalytic degradation of tetracycline by Fe-doped mechanically activated SrTiO3 powders in aqueous solution |
| title_short | Photocatalytic degradation of tetracycline by Fe-doped mechanically activated SrTiO3 powders in aqueous solution |
| title_sort | photocatalytic degradation of tetracycline by fe doped mechanically activated srtio3 powders in aqueous solution |
| topic | mechanical activation fe-srtio3 system ceramics antibiotic removal visible light photocatalysis |
| url | https://doiserbia.nb.rs/img/doi/0350-820X/2024/0350-820X2400047Z.pdf |
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