Self‐Organized TiO<sub>2</sub> Nanotube Layers as Highly Efficient Photocatalysts

Macák, Jan M.; Zlámal, Martin; Krýsa, Josef; Schmuki, Patrik

doi:10.1002/smll.200600426

Cited by 796 publications

(552 citation statements)

References 35 publications

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“…All the three samples are annealed in air ambient at 450°C, before XRD measurement to form polycrystalline structures. Different phase crystallites like anatase, rutile and brokite are reported for TiO 2 films by previous groups [39,40]. As it can be seen XRD pattern of the samples grown at 35 and 45 V show mixed crystalline crystal phases of anatase and rutile with (210) and (212) planes.…”

Section: Resultsmentioning

confidence: 61%

“…Furthermore, increasing the anodizing voltage is caused to reduce roughness factor of sample. TiO 2 optical properties such as photoelectron chemical and photo catalysis are known to depend on their phase crystallites and moreover these are so important for their application [39,40]. XRD pattern of the TiO 2 nanotubes synthesized at various anodizing voltage are 35, 45 and 55 V are given in Fig.…”

Section: Resultsmentioning

confidence: 99%

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Effects of various applied voltages on physical properties of TiO2 nanotubes by anodization method

et al. 2017

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Three steps anodization process is used to synthesize highly ordered and uniform multilayered titanium oxide (TiO 2 ) nanotubes and effect of different anodization voltages are studied on their physical properties such as structural, morphological and optical. The crystalized structure of the synthesized tubes is investigated by X-ray diffractometer analysis. To study the morphology of the tubes, field emission scanning electron microscopy is used, which showed that the wall thicknesses and the diameters of the tubes are affected by the different anodization voltages. Moreover, optical studies performed by diffuse reflection spectra suggested that band gap of the TiO 2 nanotubes are also changed by applying different anodization voltages. In this study using physical investigations, an optimum anodization voltage is obtained to synthesize the uniform crystalized TiO 2 nanotubes with suitable diameter, wall thickness and optical properties.

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Section: Resultsmentioning

confidence: 61%

Section: Resultsmentioning

confidence: 99%

Effects of various applied voltages on physical properties of TiO2 nanotubes by anodization method

et al. 2017

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“…Mesoporous, nanocrystalline TiO 2 is an interesting and useful material for a wide range of applications, such as dyesensitised solar cells 1,2 , photocatalytic reactors 3,4 , electrochemical capacitors 5 , chemical and biochemical sensors 6,7 , and electrochromic devices 8 . These electrochemical devices require an electron-conducting network with pores on the 10-nm length scale.…”

Section: Introductionmentioning

confidence: 99%

Low temperature crystallisation of mesoporous TiO2

et al. 2013

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Conducting mesoporous TiO 2 is gaining rapidly in importance for the manufacture of green energy applications. To optimise performance, its porosity and crystallinity must be carefully fine-tuned. To this end, we have performed a detailed study on the temperature dependence of TiO 2 crystallisation in mesoporous films. Crystal nucleation and growth of initially amorphous TiO 2 derived by hydrolytic sol-gel chemistry is compared to the evolution of crystallinity from nanocrystalline building blocks obtained from non-hydrolytic sol-gel chemistry, and mixtures thereof. Our study addresses the question whether the critical temperature for crystal growth can be lowered by the addition of crystalline nucleation seeds.

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“…Many researches have proven that multidimensional TiO 2 has the higher photochemical reactivity than that of bulk TiO 2 particles [5][6][7]. Advances in the nanoscale technology facilitated the synthesis of highly-ordered and multidimensional structured materials.…”

Section: Introductionmentioning

confidence: 99%

Effects of structure of anodic TiO2 nanotube arrays on photocatalytic activity for the degradation of 2,3-dichlorophenol in aqueous solution

Liang

2009

Journal of Hazardous Materials

175

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In this study titanium dioxide nanotube (TNT) arrays were prepared by an anodic oxidation process with post-calcination. The morphology and structure of the TNT films were studied by FESEM, XRD, and XPS. Photocatalytic activity of the TNT films was evaluated in terms of the degradation of 2,3-dichlorophenol in aqueous solution under UV light irradiation. The effects of the nanotube structure including tube length and tube wall thickness, and crystallinity on the photocatalytic activity were investigated in details. The results showed that the large specific surface area, high pore volume, thin tube wall, and optimal tube length would be important factors to achieve the good performance of TNT films. Moreover, the TNT films calcined at 500 o C for 1 h with the higher degree of crystallinity exhibited the higher photocatalytic activity than other TNT films calcined at 300 o C and 800 o C. Consequently, these results indicate that the optimization of TiO 2 nanotube structures is critical to achieve the high performance of photocatalytic reaction.

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Self‐Organized TiO₂ Nanotube Layers as Highly Efficient Photocatalysts

Cited by 796 publications

References 35 publications

Effects of various applied voltages on physical properties of TiO2 nanotubes by anodization method

Effects of various applied voltages on physical properties of TiO2 nanotubes by anodization method

Low temperature crystallisation of mesoporous TiO2

Effects of structure of anodic TiO2 nanotube arrays on photocatalytic activity for the degradation of 2,3-dichlorophenol in aqueous solution

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Self‐Organized TiO2 Nanotube Layers as Highly Efficient Photocatalysts

Cited by 796 publications

References 35 publications

Effects of various applied voltages on physical properties of TiO2 nanotubes by anodization method

Effects of various applied voltages on physical properties of TiO2 nanotubes by anodization method

Low temperature crystallisation of mesoporous TiO2

Effects of structure of anodic TiO2 nanotube arrays on photocatalytic activity for the degradation of 2,3-dichlorophenol in aqueous solution

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Self‐Organized TiO₂ Nanotube Layers as Highly Efficient Photocatalysts