Nanocrystallization of anatase in amorphous TiO2

Švadlák, Daniel; Shánělová, Jana; Málek, Jiřı́; Pérez‐Maqueda, Luis A.; Criado, J. M.; Mitsuhashi, T.

doi:10.1016/j.tca.2003.12.009

Cited by 27 publications

(14 citation statements)

References 15 publications

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“…The decreasing dimensionality with addition of Te can then be explained as a transition from pure surface-and surface started three-dimensional crystallization growth (m ≥ 2) to the threedimensional bulk crystallization where, however, the proportions of the growing crystals are very small, which then may evince similarly as a one-dimensional growth [26]. This concept is in a good agreement with the generally accepted idea of tellurium based matrices crystallizing rapidly from rather larger number of nuclei evolving into very small crystallites.…”

Section: Discussionmentioning

confidence: 99%

Crystallization kinetics in Se–Te glassy system

Svoboda

Krbal²,

Málek

2011

Journal of Non-Crystalline Solids

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Section: Discussionmentioning

confidence: 99%

Crystallization kinetics in Se–Te glassy system

Svoboda

Krbal²,

Málek

2011

Journal of Non-Crystalline Solids

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“…Additionally, the different crystal phases also greatly affect the photocatalytic activity of TiO 2 . Generally, the anatase TiO 2 shows outstanding photoactivity and rutile seldom shows reactivity 16, 17. Therefore, the phase characteristics of TiO 2 and Nd 3+ TiO 2 particles were investigated by X‐ray diffraction, as shown in Fig 2.…”

Section: Resultsmentioning

confidence: 99%

Photocatalytic and photoelectrochemical performance of crystallized titanium dioxide sol with neodymium ion modification

Xie

Chen

2005

J of Chemical Tech & Biotech

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Titanium dioxide was modified with neodymium metal ion by a wet-chemical coprecipitation-peptization technique under low temperature to produce crystallized sol catalyst (Nd 3+ -TiO 2 ). Crystal structure was characterized by X-ray diffraction measurement. Sol particle size was studied by means of particle size distribution measurement. Surface hydroxyl groups were determined using Fourier transform infrared spectroscopy. Photocatalytic reactivity of sol photocatalysts was investigated under ultraviolet and visible light irradiation. Photodegradation and photomineralization under ultraviolet and visible light excitation were studied in the TiO 2 and Nd 3+ -TiO 2 hydrosol reaction system. A photocurrent-time spectrum was also applied to characterize the electron-transferring efficiency in the process of self-sensitization and dye-sensitization photocatalysis reactions. As an application approach of sol catalyst, Nd 3+ -TiO 2 sol was coated on a diffusing optical fibers bundle and the photocatalytic reaction was investigated in the immobilization fiber reactor.

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“…And nanocrystallization of anatase in gel was reported by Š vadlák et al [14]. Trial of amorphisation of TiO 2 was reported in Refs.…”

Section: Introductionmentioning

confidence: 91%