Effect of silver incorporation on crystallization and microstructural properties of sol–gel derived titania thin films on glass

Akgun, Betul Akkopru; Durucan, Caner; Mellott, Nathan P.

doi:10.1007/s10971-010-2388-1

Cited by 28 publications

(21 citation statements)

References 68 publications

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“…The weak P 2p peak at ~133.0 eV may be ascribed to phosphorus surrounded by different chemical environments (phosphate‐like structure) . Silver presents in Ag 0 state at the film surface, with the Ag 3d peaks positioned at 374.0 eV (3d 3/2 ) and 368.0 eV (3d 5/2 ), rather than Ag 2 O . Note that AgNO 3 can be quickly decomposed to form metallic silver by heating even at about 200°C.…”

Section: Resultsmentioning

confidence: 99%

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Sol‐gel preparation and properties of Ag‐containing bioactive glass films on titanium

Alajmi

Shen

et al. 2017

Int J Applied Ceramic Tech

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Ag‐containing bioactive glass films (Ag/Ca atomic ratios of 0, 5% and 10%) were sol‐gel prepared for bioactive and antibacterial modification of titanium. The gel powders calcined at 610°C are mainly amorphous confirmed by x‐ray diffraction, but small diffraction peaks of Ca3SiO5 and silver are detected. The film surface is porous with the pore size of ~200 nm. Silver‐rich sub‐micro particles with sizes of 100‐480 nm are present at the surface of Ag‐glass films. CaP phase, metallic silver and silica are detected by x‐ray photoelectron spectroscopy. The mean apparent bonding strength of the films is as high as 21±1 MPa measured by the pull‐off test. The potentiodynamic polarization test shows that the coated samples have better corrosion resistance than the polished sample. The Ag‐glass coatings and their wafer samples exhibit antibacterial activity against S. aureus. The coated samples are covered by apatite layer after soaked in the simulated body fluid for 2 weeks, demonstrating their bioactivity.

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Section: Resultsmentioning

confidence: 99%

“…Second, silver ions can produce reactive oxygen species (ROS) by catalyzing molecule oxygen in water, and ROS will cause bacteria death . The bactericidal mechanisms of Ag‐bioactive glass films can still work in vivo, which is unlike the photocatalysis related bactericidal mechanism of TiO 2 films …”

Section: Resultsmentioning

confidence: 99%

Sol‐gel preparation and properties of Ag‐containing bioactive glass films on titanium

Alajmi

Shen

et al. 2017

Int J Applied Ceramic Tech

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“…The presence of the metal particles, much smaller than the wavelength of light embedded within transparent metal oxide matrices leads to surface plasmon resonance (SPR), which manifests itself as absorption appearing in the visible region of the optical spectrum [19]. The Al 2 O 3 :Ag film, after preheating has E g =4.2 eV and it can be observed that the optical band gap is increased with the temperature as E g =4.5 and 5.1 eV for 600 °C annealed sample (for 30 and 60 min, respectively).…”

Section: Resultsmentioning

confidence: 99%

Preparation and characterisation of Ag incorporated Al₂O₃ nanocomposite films obtained by sol‐gel method

Ivanova

Harizanova

Koutzarova

et al. 2012

Cryst. Res. Technol.

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Sol-gel route has been applied for a deposition of the thin films of aluminum oxide and Ag embedded in Al 2 O 3 films. The films are spin-coated on Si and quartz substrates with the film thickness of 120 nm. XRD analysis has been used for the determination of the film structure. FTIR spectroscopy is applied for studying vibrational properties of the obtained coatings. Optical characterization is done by UV-VIS spectroscopy. The formation of Ag nanoparticles has been confirmed by XRD and optical data. The sol-gel process is found to be useful technology for incorporation of Ag nanoparticles in the metal oxide matrices.

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“…The controllable and long-lasting release of active silver ions from Ag-TiO 2 films would be favourable for the treatment of post-implantation infections. Antibacterial Ag-TiO 2 films are prepared on biomedical metals by the methods of vapour deposition, 17,31 plasma electrolytic processing, 10 sol-gel coating, 5,14,24 etc. In comparison with vapour deposition and electrochemical techniques, the sol-gel coating method has the advantages of independence of substrate shape, the good control of coating composition, thickness and topography, the ease in dopant introduction, and the relative ease of processing, etc.…”

Section: Discussionmentioning

confidence: 99%

Sol–gel preparation and properties of Ag–TiO₂ films on surface roughened Ti–6Al–4V alloy

Shen

Alajmi

et al. 2015

Materials Science and Technology

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Ag-TiO 2 films (Ag/Ti53?3, 9?1 at-%) were sol-gel coated on Ti-6Al-4V alloy that had been surface roughened by the NaOH-HCl treatment for antibacterial applications. Scanning electron microscopy observation showed that pore size of the surface layer of NaOH-HCl treated Ti6Al-4V alloy increased with the NaOH concentration. Ag-TiO 2 films on the surface roughened substrate were adherent and crack-free. X-ray photoelectron spectroscopy and Auger electron spectroscopy analyses indicated that Ag existed in metallic state, and the films completely covered the roughened substrate. X-ray diffraction peaks of the substrate and anatase TiO 2 were detected. The Ag-TiO 2 films on the roughened substrate exhibited good adhesion quality and high cohesion strength in the indentation test. The potentiodynamic polarisation test showed that the TiO 2 and Ag-TiO 2 films improved corrosion resistance of the substrate.

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Effect of silver incorporation on crystallization and microstructural properties of sol–gel derived titania thin films on glass

Cited by 28 publications

References 68 publications

Sol‐gel preparation and properties of Ag‐containing bioactive glass films on titanium

Sol‐gel preparation and properties of Ag‐containing bioactive glass films on titanium

Preparation and characterisation of Ag incorporated Al₂O₃ nanocomposite films obtained by sol‐gel method

Sol–gel preparation and properties of Ag–TiO₂ films on surface roughened Ti–6Al–4V alloy

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Effect of silver incorporation on crystallization and microstructural properties of sol–gel derived titania thin films on glass

Cited by 28 publications

References 68 publications

Sol‐gel preparation and properties of Ag‐containing bioactive glass films on titanium

Sol‐gel preparation and properties of Ag‐containing bioactive glass films on titanium

Preparation and characterisation of Ag incorporated Al2O3 nanocomposite films obtained by sol‐gel method

Sol–gel preparation and properties of Ag–TiO2 films on surface roughened Ti–6Al–4V alloy

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Preparation and characterisation of Ag incorporated Al₂O₃ nanocomposite films obtained by sol‐gel method

Sol–gel preparation and properties of Ag–TiO₂ films on surface roughened Ti–6Al–4V alloy