Development of porous ceramic coatings via the PEO process: The key role of CuO nanoparticles in methylene blue photodegradation under visible light illumination
The TiO2/CuO coatings were applied on pure titanium via PEO, observing the photocatalytic capacity for methylene blue (MB) degradation. Additionally, the effect of the ionization process at room temperature on the photocatalytic efficiency of the coatings was studied. A coating containing CuO nanopa...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Applied Surface Science Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666523923001459 |
| _version_ | 1797389386021601280 |
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| author | Hamed Bahramian Arash Fattah-alhosseini Minoo Karbasi |
| author_facet | Hamed Bahramian Arash Fattah-alhosseini Minoo Karbasi |
| author_sort | Hamed Bahramian |
| collection | DOAJ |
| description | The TiO2/CuO coatings were applied on pure titanium via PEO, observing the photocatalytic capacity for methylene blue (MB) degradation. Additionally, the effect of the ionization process at room temperature on the photocatalytic efficiency of the coatings was studied. A coating containing CuO nanoparticles (NPs) presented a more porous morphology. Phase analysis results proved that coatings containing CuO NPs were comprised of anatase and CuO phases, while the addition of ionized-CuO NPs into the electrolyte led to the formation of anatase, rutile, CuO, and TiP2O7. The CuO-incorporated coating exhibited 76 % efficient MB photodegradation. Most importantly, the introduction of 1 g/L CuO-ionized NPs at 25 °C increased photocatalytic efficiency to 90 % after 6 h of visible light illumination. Moreover, the optimum coating satisfied photocatalytic efficiency even after 3 runs. A deep investigation into the effect of photocatalytic parameters, including concentrations (2.5, 5, 10 and 15 ppm) and pH of pollutants (3 and 9), was also performed. Furthermore, appropriate scavengers such as isopropanol (0.1 mM), ascorbic acid (0.1 mM), and potassium bromate (0.1 mM) were employed to scrutinize the role of various photogenerated reactive species and to detail the photocatalytic mechanism. |
| first_indexed | 2024-03-08T22:55:07Z |
| format | Article |
| id | doaj.art-0a57804f90914003b68a58be63fc9a3d |
| institution | Directory Open Access Journal |
| issn | 2666-5239 |
| language | English |
| last_indexed | 2024-03-08T22:55:07Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Applied Surface Science Advances |
| spelling | doaj.art-0a57804f90914003b68a58be63fc9a3d2023-12-16T06:09:32ZengElsevierApplied Surface Science Advances2666-52392023-12-0118100511Development of porous ceramic coatings via the PEO process: The key role of CuO nanoparticles in methylene blue photodegradation under visible light illuminationHamed Bahramian0Arash Fattah-alhosseini1Minoo Karbasi2Department of Materials Engineering, Bu-Ali Sina University, Hamedan, 65178-38695, IranCorresponding author.; Department of Materials Engineering, Bu-Ali Sina University, Hamedan, 65178-38695, IranDepartment of Materials Engineering, Bu-Ali Sina University, Hamedan, 65178-38695, IranThe TiO2/CuO coatings were applied on pure titanium via PEO, observing the photocatalytic capacity for methylene blue (MB) degradation. Additionally, the effect of the ionization process at room temperature on the photocatalytic efficiency of the coatings was studied. A coating containing CuO nanoparticles (NPs) presented a more porous morphology. Phase analysis results proved that coatings containing CuO NPs were comprised of anatase and CuO phases, while the addition of ionized-CuO NPs into the electrolyte led to the formation of anatase, rutile, CuO, and TiP2O7. The CuO-incorporated coating exhibited 76 % efficient MB photodegradation. Most importantly, the introduction of 1 g/L CuO-ionized NPs at 25 °C increased photocatalytic efficiency to 90 % after 6 h of visible light illumination. Moreover, the optimum coating satisfied photocatalytic efficiency even after 3 runs. A deep investigation into the effect of photocatalytic parameters, including concentrations (2.5, 5, 10 and 15 ppm) and pH of pollutants (3 and 9), was also performed. Furthermore, appropriate scavengers such as isopropanol (0.1 mM), ascorbic acid (0.1 mM), and potassium bromate (0.1 mM) were employed to scrutinize the role of various photogenerated reactive species and to detail the photocatalytic mechanism.http://www.sciencedirect.com/science/article/pii/S2666523923001459Plasma electrolytic oxidationCuO nanoparticlesIonizationPhotocatalytic degradationMethylene blue (MB) |
| spellingShingle | Hamed Bahramian Arash Fattah-alhosseini Minoo Karbasi Development of porous ceramic coatings via the PEO process: The key role of CuO nanoparticles in methylene blue photodegradation under visible light illumination Applied Surface Science Advances Plasma electrolytic oxidation CuO nanoparticles Ionization Photocatalytic degradation Methylene blue (MB) |
| title | Development of porous ceramic coatings via the PEO process: The key role of CuO nanoparticles in methylene blue photodegradation under visible light illumination |
| title_full | Development of porous ceramic coatings via the PEO process: The key role of CuO nanoparticles in methylene blue photodegradation under visible light illumination |
| title_fullStr | Development of porous ceramic coatings via the PEO process: The key role of CuO nanoparticles in methylene blue photodegradation under visible light illumination |
| title_full_unstemmed | Development of porous ceramic coatings via the PEO process: The key role of CuO nanoparticles in methylene blue photodegradation under visible light illumination |
| title_short | Development of porous ceramic coatings via the PEO process: The key role of CuO nanoparticles in methylene blue photodegradation under visible light illumination |
| title_sort | development of porous ceramic coatings via the peo process the key role of cuo nanoparticles in methylene blue photodegradation under visible light illumination |
| topic | Plasma electrolytic oxidation CuO nanoparticles Ionization Photocatalytic degradation Methylene blue (MB) |
| url | http://www.sciencedirect.com/science/article/pii/S2666523923001459 |
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