Phase Transition in Laser Irradiated TiO2 Thin Films

2022 ◽  
pp. 40-47
Author(s):  
Ion Lungu ◽  
L. Ghimpu ◽  
T. Potlog ◽  
A. Medvids ◽  
C. Moise
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Tio2 Thin Films

Phase transition of TiO2 thin films detected by the pulsed laser photoacoustic technique

2010 ◽  
Vol 102 (3) ◽  
pp. 699-704 ◽  
Author(s):  
A. Pérez-Pacheco ◽  
R. Castañeda-Guzmán ◽  
C. Oliva Montes de Oca ◽  
A. Esparza-García ◽  
S. J. Pérez Ruiz
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Pulsed Laser ◽  
Photoacoustic Technique ◽  
Tio2 Thin Films

Visualization of local phase transition behaviors near dislocations in epitaxial VO2/TiO2 thin films

2015 ◽  
Vol 107 (17) ◽  
pp. 171603 ◽  
Author(s):  
Ahrum Sohn ◽  
Teruo Kanki ◽  
Hidekazu Tanaka ◽  
Dong-Wook Kim
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Local Phase ◽  
Tio2 Thin Films

Hydrogen-Accelerated Phase Transition and Diffusion in TiO2 Thin Films

2018 ◽  
Vol 122 (40) ◽  
pp. 23026-23033 ◽  
Author(s):  
Wei Mao ◽  
Markus Wilde ◽  
Shohei Ogura ◽  
Jikun Chen ◽  
Katsuyuki Fukutani ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Tio2 Thin Films ◽  
And Diffusion

Localized phase transition of TiO2 thin films induced by sub-bandgap laser irradiation

2021 ◽  
Vol 39 (5) ◽  
pp. 053402
Author(s):  
Syeed E. Ahmed ◽  
Violet M. Poole ◽  
John Igo ◽  
Yi Gu ◽  
Matthew D. McCluskey
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Laser Irradiation ◽  
Tio2 Thin Films

scholarly journals Influence of structural phase transition on Ferromagnetism in Fe-doped TiO2 thin films

2012 ◽  
Vol 61 (1) ◽  
pp. 017501
Author(s):  
Gu Jian-Jun ◽  
Sun Hui-Yuan ◽  
Liu Li-Hu ◽  
Qi Yun-Kai ◽  
Xu Qin
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Tio2 Thin Films ◽  
Doped Tio2

Effect of Nb doping on the phase transition and optical properties of sol–gel TiO2 thin films

2011 ◽  
Vol 509 (10) ◽  
pp. 4150-4153 ◽  
Author(s):  
G.Q. Wang ◽  
W. Lan ◽  
G.J. Han ◽  
Y. Wang ◽  
Q. Su ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Optical Properties ◽  
Sol Gel ◽  
Tio2 Thin Films ◽  
Nb Doping

Photocatalytic degradation of methylene blue from aqueous solutions using nanopillars-TiO2 thin films: Batch reactor studies

2018 ◽  
Vol 18 (3) ◽  
pp. 81-91 ◽  
Author(s):  
C. Lalhriatpuia
Keyword(s):  
Thin Films ◽  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Organic Carbon ◽  
Photocatalytic Degradation ◽  
Batch Reactor ◽  
Tio2 Thin Films ◽  
Initial Concentration ◽  
Bet Specific Surface Area ◽  
Interfering Ions

Nanopillars-TiO2 thin films was obtained on a borosilicate glass substrate with (S1) and without (S2) polyethylene glycol as template. The photocatalytic behaviour of S1 and S2 thin films was assessed inthe degradation of methylene blue (MB) dye from aqueous solution under batch reactor operations. The thin films were characterized by the SEM, XRD, FTIR and AFM analytical methods. BET specific surface area and pore sizes were also obtained. The XRD data confirmed that the TiO2 particles are in its anatase mineral phase. The SEM and AFM images indicated the catalyst is composed with nanosized pillars of TiO2, evenly distributed on the surface of the substrate. The BET specific surface area and pore sizes of S1 and S2 catalyst were found to be 5.217 and 1.420 m2/g and 7.77 and 4.16 nm respectively. The photocatalytic degradation of MB was well studied at wide range of physico-chemical parameters. The effect of solution pH (pH 4.0 to 10.0) and MB initial concentration (1.0 to 10.0 mg/L) was extensively studied and the effect of several interfering ions, i.e., cadmium nitrate, copper sulfate, zinc chloride, sodium chloride, sodium nitrate, sodium nitrite, glycine, oxalic acid and EDTA in the photocatalytic degradation of MB was demonstrated. The maximum percent removal of MB was observed at pH 8.0 beyond which it started decreasing and a low initial concentration of the pollutant highly favoured the photocatalytic degradation using thin films and the presence of several interfering ions diminished the photocatalytic activity of thin films to some extent. The overall photocatalytic activity was in the order: S2 > S1 > UV. The photocatalytic degradation of MB was followed the pseudo-first-order rate kinetics. The mineralization of MB was studied with total organic carbon measurement using the TOC (total organic carbon) analysis.

STRUCTURAL, OPTICAL PROPERTIES AND PHOTOCATALYTIC ACTIVITY OF NANOCRYSTALLINE TiO2 THIN FILMS DEPOSITED BY SOL-GEL SPIN COATING

2019 ◽  
Vol 7 (1) ◽  
pp. 28
Author(s):  
KOMARAIAH DURGAM ◽  
RADHA EPPA ◽  
REDDY M. V. RAMANA ◽  
KUMAR J. SIVA ◽  
R. SAYANNA ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Photocatalytic Activity ◽  
Spin Coating ◽  
Sol Gel ◽  
Tio2 Thin Films ◽  
Nanocrystalline Tio2

Fe2O3 - TiO2 THIN FILMS PREPARED BY SOL-GEL METHOD

2011 ◽  
Vol 10 (2) ◽  
pp. 187-192 ◽  
Author(s):  
Ramona-Crina Suciu ◽  
Marcela Corina Rosu ◽  
Teofil Danut Silipas ◽  
Emil Indrea ◽  
Violeta Popescu ◽  
...  
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Tio2 Thin Films ◽  
Gel Method ◽  
Sol Gel Method
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