Hydrophilic property of SiO2/TiO2 double layer films

Nakamura, Minoru; Kobayashi, Masanobu; Kuzuya, N.; Komatsu, Takeshi; Mochizuka, Takuo

doi:10.1016/j.tsf.2005.07.254

Cited by 43 publications

(24 citation statements)

References 9 publications

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“…There are many studies in the literature showing TiO 2 -SiO 2 nanocomposites as better photocatalysts than pure TiO 2 [111][112][113][114][115][116][117][118][119][120][121][122]. Adlineation between the two components appears to be important since mechanically mixing TiO 2 and SiO 2 was ineffective in improving the photocatalytic activity of pure TiO 2 [123].…”

Section: Phase Interfaces In Tio 2 -Sio 2 Nanocompositesmentioning

confidence: 99%

The solid–solid interface: Explaining the high and unique photocatalytic reactivity of TiO2-based nanocomposite materials

2007

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Section: Phase Interfaces In Tio 2 -Sio 2 Nanocompositesmentioning

confidence: 99%

The solid–solid interface: Explaining the high and unique photocatalytic reactivity of TiO2-based nanocomposite materials

2007

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“…5 shows the contact angle measurements for the substrates tested in the flow chamber. Measurements were made both before and after flow testing and were typically higher after the experimental runs, this increase is likely to be caused by the adsorption of organic compounds on the surface [12]. No statistically significant difference was seen between the contact angle of the three PMMA surfaces before flow testing, but after flow testing the embossed PMMA surfaces showed slightly lower contact angles.…”

Section: B Patterned Surface Preparationmentioning

confidence: 95%

Investigating the Effects of Fluid Shear Forces on Cellular Responses to Profiled Surfaces in-Vitro: A Computational and Experimental Investigation

Brown

Meenan

2007

2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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The flow conditions in a parallel plate "bioreactor" have been modeled using Computational Fluid Dynamics (CFD) and characterized experimentally using a computer controlled flow regulation apparatus and associated flow visualization techniques. The conditions required to induce flow characteristics appropriate for standard in-vitro cell processes on flat substrates have been identified from a consideration of data from previous studies. The effects of changing the surface topography of the substrate on which the cells are grown has been investigated by forming specific micrometer scale features via hot embossing on polymeric plates. The effect that various features have on the flow that occurs at the boundary layer adjacent to the surface in the parallel plate chamber has been determined. The results for studies undertaken in a parallel plate chamber operating under computer control are presented here. Flow characteristics have been determined using feedback from the sensors within the system and validated by direct flow visualization using fluorescent beads and modeled using a CFD routine. The system exhibits well developed laminar flow and is capable of delivering surface shear stresses up to 2.4 Pa on a planar surface. As such, it is suitable for evaluating in-vitro cell processes. The effects that the features produced by hot embossing of a Poly Methyl Methacrylate (PMMA) surface have been tested in the flow chamber and their influence on shear stress observed.

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“…On the other hand, sol-gel, reactive sputtering, vacuum evaporation, chemical vapor deposition and so on have been also studied to fabricate anatase-TiO 2 layer [6]- [8], in which the orientation, the surface roughness, the defects etc. are expected to be control in addition to fabrication of the multilayer [9]. Especially, chemical vapor deposition (CVD) with great merit for conformal formation of the layer on three-dimensionally structured surface is so useful to control the orientation.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Photo-Induced Property of LPCVD-TiO<SUB>2</SUB> Layer on PCVD-TiO<SUB>x</SUB> Initial Layer

Yamauchi¹,

Yamamoto²,

Hatakeyama³

2015

MSCE

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Plasma-assisted chemical vapor deposition (PCVD) was applied for amorphous TiOx deposition on Pyrex-glass substrate at low temperature below 90˚C to control orientation of anatase-TiO2 layer by low pressure chemical vapor deposition (LPCVD) using TTIP-single precursor. Preferentially <112>-oriented anatase-TiO2 layer was successfully deposited with the orientation ratio as high as 68% on the initial layer of the thickness around 70 nm. Contact angle water was quickly decreased by UV-irradiation on the highly <112>-oriented TiO2 layer comparing with the layer directly deposited on glass, whereas surface roughness on the former was significantly reduced in comparison to that on the latter. Methyleneblue (MB) aqueous solution with the concentration of 2 mmol/L was used to evaluate photocatalytic property on the layer. Rate constant of MB-decomposition via first order kinetics increased with the orientation ratio above 60% was resulted in 2.3 × 10 −1 min −1 for the layer with <112>-orientation ratio of 68%, whereas the constant was 2.8 × 10 −3 min −1 for the layer directly deposited on glass.

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Hydrophilic property of SiO2/TiO2 double layer films

Cited by 43 publications

References 9 publications

The solid–solid interface: Explaining the high and unique photocatalytic reactivity of TiO2-based nanocomposite materials

The solid–solid interface: Explaining the high and unique photocatalytic reactivity of TiO2-based nanocomposite materials

Investigating the Effects of Fluid Shear Forces on Cellular Responses to Profiled Surfaces in-Vitro: A Computational and Experimental Investigation

Enhanced Photo-Induced Property of LPCVD-TiO<SUB>2</SUB> Layer on PCVD-TiO<SUB>x</SUB> Initial Layer

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Hydrophilic property of SiO2/TiO2 double layer films

Cited by 43 publications

References 9 publications

The solid–solid interface: Explaining the high and unique photocatalytic reactivity of TiO2-based nanocomposite materials

The solid–solid interface: Explaining the high and unique photocatalytic reactivity of TiO2-based nanocomposite materials

Investigating the Effects of Fluid Shear Forces on Cellular Responses to Profiled Surfaces in-Vitro: A Computational and Experimental Investigation

Enhanced Photo-Induced Property of LPCVD-TiO&lt;SUB&gt;2&lt;/SUB&gt; Layer on PCVD-TiO&lt;SUB&gt;x&lt;/SUB&gt; Initial Layer

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Enhanced Photo-Induced Property of LPCVD-TiO<SUB>2</SUB> Layer on PCVD-TiO<SUB>x</SUB> Initial Layer