Structural and near-infra red luminescence properties of Nd-doped TiO2 films deposited by RF sputtering

Pandiyan, Rajesh; Micheli, V.; Ristić, Davor; Bartali, Ruben; Pepponi, G.; Barozzi, M.; Gottardi, Gloria; Ferrari, M.; Laidani, N.

doi:10.1039/c2jm34708c

Cited by 56 publications

(31 citation statements)

References 29 publications

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“…However, in the practical application, there are numerous advantages in using a photocatalyst as a film or layer to be immobilized onto a solid support. Many methods can be used to prepare thin films, such as sol-gel process [23], pulsed laser deposition [24], electrochemistry process [25], hydrothermal method [26], magnetron sputtering [27,28], etc. Among these methods, the sputtering method is a very useful technique because it provides large area coatings with good thickness uniformity, high film quality and strong mechanical durability.…”

Section: Introductionmentioning

confidence: 99%

Structural, morphological, optical and photocatalytic properties of Gd-doped TiO2 films

Cheng

et al. 2016

Thin Solid Films

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Section: Introductionmentioning

confidence: 99%

Structural, morphological, optical and photocatalytic properties of Gd-doped TiO2 films

Cheng

et al. 2016

Thin Solid Films

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“…η = 2 when it is an indirect transition semiconductor, 34 such as TiO 2 . Assuming the η value is still 2 after the TiCl 4 treatment, the bandgap can be determined by extrapolating the liner portion of the plot of (αhυ) 1/2 versus hυ ( Figure 6).…”

Section: Resultsmentioning

confidence: 99%

TiO₂Nanotube Films Prepared by Anodization in Glycerol Solutions for Photocathodic Protection of Stainless Steel

Zhu

et al. 2014

J. Electrochem. Soc.

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TiO 2 nanotube array films were prepared on titanium foils by anodic oxidation in aqueous glycerol solutions with NH 4 F. The morphologies and properties of the films prepared in the solutions with different water contents were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and UV-vis spectroscopy. The photocathodic protection effect of the films were evaluated by measuring the time evolution of the potential of 403 stainless steel coupled to the film photoanodes. The results showed that the TiO 2 nanotube film prepared in the solution with 40 vol% water exhibited excellent photoelectrochemical properties. When the 403 stainless steel in a 0.5 M NaCl solution was coupled to the film under illumination, its potential decreased by 400 mV, showing that the TiO 2 nanotube film provided effective photocathodic protection effect on the steel. Furthermore, the photoelectrochemical performance of the TiO 2 nanotube film could be further improved by a TiCl 4 solution treatment.The study of corrosion control is an urgent task for modern society because corrosion has caused considerable waste of resources and resulted in a huge economic loss throughout the world. 1 Many methods have been applied to inhibit metal corrosion, such as electrochemical protection, 2-4 the use of corrosion inhibitors, 5,6 and coatings. 7,8 In the 1990's, Yuan et al. 9 reported that TiO 2 coatings could be used as a semiconductor photoanode and provide a photocathodic protection effect on copper substrates, which is a new type of cathodic protection. The basic idea of the present photocathodic protection method is to replace the sacrificial anode with a semiconductor photoanode that can generate photoelectrons under illumination. 9 This method does not require an external power supply or a sacrificial anode, which is beneficial to the sustainable use of environmental resources. Therefore, some efforts have been made to study photocathodic protection in the academic world. 10-12 There are two main ways for the application of photocathodic protection in corrosion control of metals. One is that a TiO 2 coating is prepared directly on metal surfaces, 13-17 and the other is that a TiO 2 film as a photoanode is coupled to the metal to be protected through an external circuit. [18][19][20][21] More studies on the first way have been adopted since the preparation process of the TiO 2 coating is easy to operate. 13-17 However, crevice corrosion may occur on the metal surfaces due to cracking of the TiO 2 coating. Although the second way is relatively less studied, but it is easier to modify TiO 2 films and has no influence on the protected metal surfaces, which can also further improve the photocathodic protection effects. Our group has made some important progress in using this method to improve the photocathodic protection effects of TiO 2 films. 19-21 For example, Li et al. 19 prepared a flower-like N-doped TiO 2 film by a hydrothermal method, and found that the photocathodic protection effect of the composite film was gr...

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“…These include arrayed pores, ordered nanotubes and arrayed shells architectures in TiO 2 films. Varied techniques have been utilized for fabricating TiO 2 films, such as thermal deposition [12], sputtering [13], chemical vapor deposition [14], spray pyrolysis [15] and electrochemical deposition [16].…”

Section: Introductionmentioning

confidence: 99%

Assembly of binary templates for fabricating arrayed pores of TiO 2 films with hierarchical structures

Lei¹,

Du²,

Wei³

et al. 2014

Materials Letters

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Structural and near-infra red luminescence properties of Nd-doped TiO2 films deposited by RF sputtering

Cited by 56 publications

References 29 publications

Structural, morphological, optical and photocatalytic properties of Gd-doped TiO2 films

Structural, morphological, optical and photocatalytic properties of Gd-doped TiO2 films

TiO₂Nanotube Films Prepared by Anodization in Glycerol Solutions for Photocathodic Protection of Stainless Steel

Assembly of binary templates for fabricating arrayed pores of TiO 2 films with hierarchical structures

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Structural and near-infra red luminescence properties of Nd-doped TiO2 films deposited by RF sputtering

Cited by 56 publications

References 29 publications

Structural, morphological, optical and photocatalytic properties of Gd-doped TiO2 films

Structural, morphological, optical and photocatalytic properties of Gd-doped TiO2 films

TiO2Nanotube Films Prepared by Anodization in Glycerol Solutions for Photocathodic Protection of Stainless Steel

Assembly of binary templates for fabricating arrayed pores of TiO 2 films with hierarchical structures

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Product

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TiO₂Nanotube Films Prepared by Anodization in Glycerol Solutions for Photocathodic Protection of Stainless Steel