Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO<sub>2</sub> Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran
This study proposes a simple and controlled method for producing TiO<sub>2</sub> with phase junction, oxygen vacancies, and Ti<sup>3+</sup> by combining picosecond pulsed laser irradiation and electrochemical anodization. Ti mesh was pretreated by irradiating with a picosecon...
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MDPI AG
2024-03-01
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| Online Access: | https://www.mdpi.com/2304-6732/11/3/284 |
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| author | Miloš Tošić Vladimir Rajić Dejan Pjević Stevan Stojadinović Nikša Krstulović Suzana Dimitrijević-Branković Miloš Momčilović |
| author_facet | Miloš Tošić Vladimir Rajić Dejan Pjević Stevan Stojadinović Nikša Krstulović Suzana Dimitrijević-Branković Miloš Momčilović |
| author_sort | Miloš Tošić |
| collection | DOAJ |
| description | This study proposes a simple and controlled method for producing TiO<sub>2</sub> with phase junction, oxygen vacancies, and Ti<sup>3+</sup> by combining picosecond pulsed laser irradiation and electrochemical anodization. Ti mesh was pretreated by irradiating with a picosecond pulsed laser technique using an Nd:YAG laser (1064 nm) at two fluencies, 15 J/cm<sup>2</sup> and 30 J/cm<sup>2</sup>. The samples were then subjected to electrochemical anodization to form TiO<sub>2</sub> nanotube arrays on the previously laser-treated surface. This study will investigate the possibility of forming TiO<sub>2</sub> nanotube arrays on a pre-laser-treated Ti substrate and determine their physicochemical and photocatalytic properties. The samples were characterized by FESEM, XRD, Raman, XPS, and UV-Vis DRS. UV-Vis spectroscopy was used to observe the progress of photocatalytic degradation for all samples, and degradation products were determined using GC-MS. With the synergistic effects of phase junction, oxygen vacancies, and Ti<sup>3+</sup>, the laser-treated TiO<sub>2</sub> with 30 J/cm<sup>2</sup> showed a higher photocatalytic degradation rate (85.1%) of the pesticide carbofuran compared to non-laser-treated TiO<sub>2</sub> (54.8%), remaining stable during successive degradation cycles, which has promising practical applications. |
| first_indexed | 2024-04-24T17:55:38Z |
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| last_indexed | 2024-04-24T17:55:38Z |
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| series | Photonics |
| spelling | doaj.art-f69b479f8d33441ea0019e9767dd540e2024-03-27T14:00:16ZengMDPI AGPhotonics2304-67322024-03-0111328410.3390/photonics11030284Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO<sub>2</sub> Nanostructures for the Photocatalytic Degradation of Pesticide CarbofuranMiloš Tošić0Vladimir Rajić1Dejan Pjević2Stevan Stojadinović3Nikša Krstulović4Suzana Dimitrijević-Branković5Miloš Momčilović6Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, 11351 Belgrade, SerbiaVinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, 11351 Belgrade, SerbiaVinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, 11351 Belgrade, SerbiaFaculty of Physics, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, SerbiaInstitute of Physics, Bijenička Cesta 46, 10000 Zagreb, CroatiaFaculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, SerbiaVinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, 11351 Belgrade, SerbiaThis study proposes a simple and controlled method for producing TiO<sub>2</sub> with phase junction, oxygen vacancies, and Ti<sup>3+</sup> by combining picosecond pulsed laser irradiation and electrochemical anodization. Ti mesh was pretreated by irradiating with a picosecond pulsed laser technique using an Nd:YAG laser (1064 nm) at two fluencies, 15 J/cm<sup>2</sup> and 30 J/cm<sup>2</sup>. The samples were then subjected to electrochemical anodization to form TiO<sub>2</sub> nanotube arrays on the previously laser-treated surface. This study will investigate the possibility of forming TiO<sub>2</sub> nanotube arrays on a pre-laser-treated Ti substrate and determine their physicochemical and photocatalytic properties. The samples were characterized by FESEM, XRD, Raman, XPS, and UV-Vis DRS. UV-Vis spectroscopy was used to observe the progress of photocatalytic degradation for all samples, and degradation products were determined using GC-MS. With the synergistic effects of phase junction, oxygen vacancies, and Ti<sup>3+</sup>, the laser-treated TiO<sub>2</sub> with 30 J/cm<sup>2</sup> showed a higher photocatalytic degradation rate (85.1%) of the pesticide carbofuran compared to non-laser-treated TiO<sub>2</sub> (54.8%), remaining stable during successive degradation cycles, which has promising practical applications.https://www.mdpi.com/2304-6732/11/3/284Nd:YAG picosecond pulsed laserelectrochemical anodizationTiO<sub>2</sub>photocatalytic degradationcarbofuran |
| spellingShingle | Miloš Tošić Vladimir Rajić Dejan Pjević Stevan Stojadinović Nikša Krstulović Suzana Dimitrijević-Branković Miloš Momčilović Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO<sub>2</sub> Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran Photonics Nd:YAG picosecond pulsed laser electrochemical anodization TiO<sub>2</sub> photocatalytic degradation carbofuran |
| title | Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO<sub>2</sub> Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran |
| title_full | Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO<sub>2</sub> Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran |
| title_fullStr | Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO<sub>2</sub> Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran |
| title_full_unstemmed | Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO<sub>2</sub> Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran |
| title_short | Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO<sub>2</sub> Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran |
| title_sort | synergy of nd yag picosecond pulsed laser irradiation and electrochemical anodization in the formation of tio sub 2 sub nanostructures for the photocatalytic degradation of pesticide carbofuran |
| topic | Nd:YAG picosecond pulsed laser electrochemical anodization TiO<sub>2</sub> photocatalytic degradation carbofuran |
| url | https://www.mdpi.com/2304-6732/11/3/284 |
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