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Improvement of the photocatalytic activity of ZnO thin films doped with manganese
In the herein report, we synthesized ZnO thin films doped with manganese (Mn). We studied the impact of Mn doping loads (1 %, 3 %, 5 % wt.) on physicochemical properties of the compounds. Furthermore, we presented the photocatalytic efficiency in removal of methylene blue dye. The structural assay i...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10582510/ https://www.ncbi.nlm.nih.gov/pubmed/37860572 http://dx.doi.org/10.1016/j.heliyon.2023.e20809 |
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author | Vallejo, William Cantillo, Alvaro Díaz-Uribe, Carlos |
author_facet | Vallejo, William Cantillo, Alvaro Díaz-Uribe, Carlos |
author_sort | Vallejo, William |
collection | PubMed |
description | In the herein report, we synthesized ZnO thin films doped with manganese (Mn). We studied the impact of Mn doping loads (1 %, 3 %, 5 % wt.) on physicochemical properties of the compounds. Furthermore, we presented the photocatalytic efficiency in removal of methylene blue dye. The structural assay indicated ZnO conserve the wurtzite crystalline structure after dopant insertion. Furthermore, the crystalline size of catalysts was reduced after dopant incorporation. The SEM analysis showed a change in surface morphology after modification of ZnO thin films. Furthermore, Raman spectroscopy verified the Mn insertion inside the ZnO lattice. After the doping process, band gap was reduced by 16 %, in comparison to bare ZnO. After the photocatalytic test, the doped catalysts showed better performance than bare ZnO in removing MB. The best test showed a kinetics constant value of 2.9 × 10(−3) min(−1) after 120 min of visible irradiation. Finally, the Mn(5 %):ZnO thin film was suitable after five degradation cycles, and the degradation process efficiency was reduced by 32%. |
format | Online Article Text |
id | pubmed-10582510 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-105825102023-10-19 Improvement of the photocatalytic activity of ZnO thin films doped with manganese Vallejo, William Cantillo, Alvaro Díaz-Uribe, Carlos Heliyon Research Article In the herein report, we synthesized ZnO thin films doped with manganese (Mn). We studied the impact of Mn doping loads (1 %, 3 %, 5 % wt.) on physicochemical properties of the compounds. Furthermore, we presented the photocatalytic efficiency in removal of methylene blue dye. The structural assay indicated ZnO conserve the wurtzite crystalline structure after dopant insertion. Furthermore, the crystalline size of catalysts was reduced after dopant incorporation. The SEM analysis showed a change in surface morphology after modification of ZnO thin films. Furthermore, Raman spectroscopy verified the Mn insertion inside the ZnO lattice. After the doping process, band gap was reduced by 16 %, in comparison to bare ZnO. After the photocatalytic test, the doped catalysts showed better performance than bare ZnO in removing MB. The best test showed a kinetics constant value of 2.9 × 10(−3) min(−1) after 120 min of visible irradiation. Finally, the Mn(5 %):ZnO thin film was suitable after five degradation cycles, and the degradation process efficiency was reduced by 32%. Elsevier 2023-10-10 /pmc/articles/PMC10582510/ /pubmed/37860572 http://dx.doi.org/10.1016/j.heliyon.2023.e20809 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Research Article Vallejo, William Cantillo, Alvaro Díaz-Uribe, Carlos Improvement of the photocatalytic activity of ZnO thin films doped with manganese |
title | Improvement of the photocatalytic activity of ZnO thin films doped with manganese |
title_full | Improvement of the photocatalytic activity of ZnO thin films doped with manganese |
title_fullStr | Improvement of the photocatalytic activity of ZnO thin films doped with manganese |
title_full_unstemmed | Improvement of the photocatalytic activity of ZnO thin films doped with manganese |
title_short | Improvement of the photocatalytic activity of ZnO thin films doped with manganese |
title_sort | improvement of the photocatalytic activity of zno thin films doped with manganese |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10582510/ https://www.ncbi.nlm.nih.gov/pubmed/37860572 http://dx.doi.org/10.1016/j.heliyon.2023.e20809 |
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