TY  - JOUR
AU  - Tošić, Miloš
AU  - Rajić, Vladimir
AU  - Pjević, Dejan
AU  - Stojadinović, Stevan
AU  - Krstulović, Nikša
AU  - Dimitrijević-Branković, Suzana
AU  - Momčilović, Miloš
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7412
AB  - This study proposes a simple and controlled method for producing TiO2 with phase junction, oxygen vacancies, and Ti3+ 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/cm2 and 30 J/cm2 . The samples were then subjected to electrochemical anodization to form TiO2 nanotube arrays on the previously laser-treated surface. This study will investigate the possibility of forming TiO2 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 Ti3+, the laser-treated TiO2 with 30 J/cm2 showed a higher photocatalytic degradation rate (85.1%) of the pesticide carbofuran compared to non-laser-treated TiO2 (54.8%), remaining stable during successive degradation cycles, which has promising practical applications.
T2  - Photonics
T1  - Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO2 Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran
IS  - 3
SP  - 284
VL  - 11
DO  - 10.3390/photonics11030284
ER  - 

@article{
author = "Tošić, Miloš and Rajić, Vladimir and Pjević, Dejan and Stojadinović, Stevan and Krstulović, Nikša and Dimitrijević-Branković, Suzana and Momčilović, Miloš",
year = "2024",
abstract = "This study proposes a simple and controlled method for producing TiO2 with phase junction, oxygen vacancies, and Ti3+ 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/cm2 and 30 J/cm2 . The samples were then subjected to electrochemical anodization to form TiO2 nanotube arrays on the previously laser-treated surface. This study will investigate the possibility of forming TiO2 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 Ti3+, the laser-treated TiO2 with 30 J/cm2 showed a higher photocatalytic degradation rate (85.1%) of the pesticide carbofuran compared to non-laser-treated TiO2 (54.8%), remaining stable during successive degradation cycles, which has promising practical applications.",
journal = "Photonics",
title = "Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO2 Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran",
number = "3",
pages = "284",
volume = "11",
doi = "10.3390/photonics11030284"
}

Tošić, M., Rajić, V., Pjević, D., Stojadinović, S., Krstulović, N., Dimitrijević-Branković, S.,& Momčilović, M.. (2024). Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO2 Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran. in Photonics, 11(3), 284.
https://doi.org/10.3390/photonics11030284

Tošić M, Rajić V, Pjević D, Stojadinović S, Krstulović N, Dimitrijević-Branković S, Momčilović M. Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO2 Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran. in Photonics. 2024;11(3):284.
doi:10.3390/photonics11030284 .

Tošić, Miloš, Rajić, Vladimir, Pjević, Dejan, Stojadinović, Stevan, Krstulović, Nikša, Dimitrijević-Branković, Suzana, Momčilović, Miloš, "Synergy of Nd:YAG Picosecond Pulsed Laser Irradiation and Electrochemical Anodization in the Formation of TiO2 Nanostructures for the Photocatalytic Degradation of Pesticide Carbofuran" in Photonics, 11, no. 3 (2024):284,
https://doi.org/10.3390/photonics11030284 . .

TY  - JOUR
AU  - Stojadinović, Stevan
AU  - Bajat, Jelena
AU  - Vasilić, Rastko
AU  - Mišković-Stanković, Vesna
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2304
AB  - This paper presents our recent research on morphology and phase composition of oxide coatings formed by plasma electrolytic oxidation of aluminum in 0.1 M sodium tungstate at constant current density of 15 mA/cm2 and corrosion stability of such coatings. Roughness of obtained oxide coatings increases with prolonged process time, while their microhardness reaches maximal value after about 5 minutes from the onset of the process and then decreases. Oxide coatings are partly crystallized and mainly consist of γ-Al2O3, α-Al2O3 i WO3, with γ-Al2O3 content increasing with prolonged PEO time. All obtained oxide coatings have higher impedance than pure aluminum and no relationship between PEO time and impedance is found. The evolution of impedance spectra shows that samples obtained after 7.5 minutes of PEO time have most efficient corrosion protection of aluminum substrate.
AB  - U radu su prikazana ispitivanja morfologije i faznog sastava površina oksidnih slojeva dobijenih metodom plazma elektrolitičke oksidacije aluminijuma u 0.1 M vodenom rastvoru natrijum volframatu pri stalnoj gustini struje od 15 mA/cm2, kao i njihova koroziona stabilnost. Pokazano je da hrapavost dobijenih slojeva raste sa vremenom trajanja procesa, dok mikro tvrdoća uzoraka dostiže maksimalnu vrednost posle 5 minuta od početka procesa i posle tog vremena opada. Osidni slojevi su delimično kristalizovane i uglavnom se sastoje od γ-Al2O3, α-Al2O3 i WO3, a sadržaj γ-Al2O3 raste sa trajanjem PEO procesa. Dobijeni oksidni slojevi imaju veću impedansu od čistog aluminijuma, pri čemu dužem vremenu PEO procesa ne odgovara i najveća impedansa. Najveću korozionu stabilnost su pokazali oksidni slojevi dobijeni posle 7.5 minuta odpočetka anodizacije.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Characterization of oxide coatings formed by plasma electrolytic oxidation of aluminum in sodium tungstate
T1  - Karakterizacija oksidnih slojeva dobijenih plazma elektrolitičkom oksidacijom aluminijuma u natrijum volframatu
EP  - 152
IS  - 2
SP  - 147
VL  - 54
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2304
ER  - 

@article{
author = "Stojadinović, Stevan and Bajat, Jelena and Vasilić, Rastko and Mišković-Stanković, Vesna",
year = "2013",
abstract = "This paper presents our recent research on morphology and phase composition of oxide coatings formed by plasma electrolytic oxidation of aluminum in 0.1 M sodium tungstate at constant current density of 15 mA/cm2 and corrosion stability of such coatings. Roughness of obtained oxide coatings increases with prolonged process time, while their microhardness reaches maximal value after about 5 minutes from the onset of the process and then decreases. Oxide coatings are partly crystallized and mainly consist of γ-Al2O3, α-Al2O3 i WO3, with γ-Al2O3 content increasing with prolonged PEO time. All obtained oxide coatings have higher impedance than pure aluminum and no relationship between PEO time and impedance is found. The evolution of impedance spectra shows that samples obtained after 7.5 minutes of PEO time have most efficient corrosion protection of aluminum substrate., U radu su prikazana ispitivanja morfologije i faznog sastava površina oksidnih slojeva dobijenih metodom plazma elektrolitičke oksidacije aluminijuma u 0.1 M vodenom rastvoru natrijum volframatu pri stalnoj gustini struje od 15 mA/cm2, kao i njihova koroziona stabilnost. Pokazano je da hrapavost dobijenih slojeva raste sa vremenom trajanja procesa, dok mikro tvrdoća uzoraka dostiže maksimalnu vrednost posle 5 minuta od početka procesa i posle tog vremena opada. Osidni slojevi su delimično kristalizovane i uglavnom se sastoje od γ-Al2O3, α-Al2O3 i WO3, a sadržaj γ-Al2O3 raste sa trajanjem PEO procesa. Dobijeni oksidni slojevi imaju veću impedansu od čistog aluminijuma, pri čemu dužem vremenu PEO procesa ne odgovara i najveća impedansa. Najveću korozionu stabilnost su pokazali oksidni slojevi dobijeni posle 7.5 minuta odpočetka anodizacije.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Characterization of oxide coatings formed by plasma electrolytic oxidation of aluminum in sodium tungstate, Karakterizacija oksidnih slojeva dobijenih plazma elektrolitičkom oksidacijom aluminijuma u natrijum volframatu",
pages = "152-147",
number = "2",
volume = "54",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2304"
}

Stojadinović, S., Bajat, J., Vasilić, R.,& Mišković-Stanković, V.. (2013). Characterization of oxide coatings formed by plasma electrolytic oxidation of aluminum in sodium tungstate. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 54(2), 147-152.
https://hdl.handle.net/21.15107/rcub_technorep_2304

Stojadinović S, Bajat J, Vasilić R, Mišković-Stanković V. Characterization of oxide coatings formed by plasma electrolytic oxidation of aluminum in sodium tungstate. in Zaštita materijala. 2013;54(2):147-152.
https://hdl.handle.net/21.15107/rcub_technorep_2304 .

Stojadinović, Stevan, Bajat, Jelena, Vasilić, Rastko, Mišković-Stanković, Vesna, "Characterization of oxide coatings formed by plasma electrolytic oxidation of aluminum in sodium tungstate" in Zaštita materijala, 54, no. 2 (2013):147-152,
https://hdl.handle.net/21.15107/rcub_technorep_2304 .