Flower-like TiO2 nanostructures with exposed {001} facets: Facile synthesis and enhanced photocatalysis

Liu, Min; Piao, Lingyu; Lu, Wenjia; Ju, Sheng; Zhao, Lei; Zhou, Chao; Li, Yong; Wang, Wenjing

doi:10.1039/c0nr00050g

Cited by 199 publications

(122 citation statements)

References 32 publications

Supporting

Mentioning

118

Contrasting

Order By: Relevance

“…[5,22] The corresponding high-resolution TEM (HRTEM) image (bottom inset in Figure 3 a) shows the perpendicular lattice spacing of 0.19 nm representing the (200) and (020) atomic planes of the anatase TiO 2 , further confirmed exposed crystal facet is indeed the {001} facet. [5,22] This is in agreement with the studies by Hu et al and Liu et al [29,30] It should be noted that the above data was obtained from the samples obtained after ultrasonic treatment. [29,31] For the sample with 3 h reaction time, the SAED pattern (top inset in that the lateral facet is a single crystal.…”

Section: Resultssupporting

confidence: 93%

Facile Fabrication of Anatase TiO₂ Microspheres on Solid Substrates and Surface Crystal Facet Transformation from {001} to {101}

Zhang

Liu

et al. 2011

Chemistry A European J

View full text Add to dashboard Cite

Anatase TiO(2) microspheres with controlled surface morphologies and exposed crystal facets were directly synthesized on metal titanium foil substrates by means of a facile, one-pot hydrothermal method without use of any templating reagent. The obtained products were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelecron spectroscopy (XPS), and the focused ion beam (FIB) technique. The sizes of the resultant microspheres ranged from 1.1 to 2.1 μm. The transformation of anatase TiO(2) microspheres with exposed {001} facets surface to nanosheets surface with {101} facets was achieved by simply controlling the hydrothermal reaction time. The anatase TiO(2) microspheres with exposed square-shaped plane {001} facets were obtained by controlling the reaction time at 1 h. The prolonged reaction time transforms the anatase TiO(2) microspheres with exposed square-shaped plane {001} facets to eroded {001} facets then to a nanosheet surface with exposed {101} facets. With hydrothermal synthesis, the surface morphological structure and crystal facets formation are highly dependent on dissolution/deposition processes, which can be strongly influenced by attributes, such as pH of the reaction media, the total concentration of dissolved and suspended titanium species, and the concentration of fluoride in the reaction solution. The changes of these attributes during the hydrothermal process were therefore measured and used to illustrate the morphology and crystal-facet transformation processes of anatase TiO(2) microspheres. The surface morphologies and crystal-facet transformations during hydrothermal processes were found to be governed by the compositional changes of the reaction media, driven by dynamically shifted dissolution/deposition equilibria. The photocatalytic activities of the photoanodes made of anatase TiO(2) microspheres were evaluated. The experimental results demonstrated that the photocatalytic activity of anatase TiO(2) microspheres with exposed {001} facets was found to be 1.5 times higher than that of the anatase TiO(2) microspheres with exposed {101} facets.

show abstract

Section: Resultssupporting

confidence: 93%

Facile Fabrication of Anatase TiO₂ Microspheres on Solid Substrates and Surface Crystal Facet Transformation from {001} to {101}

Zhang

Liu

et al. 2011

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…The particle size was found to be about 15 nm, which was consistent with the XRD result. A well-resolved interplanar distance of 0.354 nm was also observed, which is close to 0.352 nm, as reported for the anatase (101) crystal plane of TiO 2 [12,35].…”

Section: Analysis Of Sem and Temsupporting

confidence: 75%

Improved visible light photocatalytic activity of fluorine and nitrogen co-doped TiO2 with tunable nanoparticle size

Cheng

Jin

Lin

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

“…The linear relationship of (ln (C 0 /C)) vs. time ( Fig. 9(b)) shows that the photocatalytic degradation of MB follows simplified Langmuir-Hinshelwood model [69]:…”

Section: Photocatalysismentioning

confidence: 99%

Surface reconstruction, oxygen vacancy distribution and photocatalytic activity of hydrogenated titanium oxide thin film

Gurylev

Perng

2015

Journal of Catalysis

View full text Add to dashboard Cite

Flower-like TiO2 nanostructures with exposed {001} facets: Facile synthesis and enhanced photocatalysis

Abstract: Flower-like TiO(2) nanostructures with exposed {001} facets were synthesized by a low-temperature hydrothermal process from Ti powders for the first time, and they exhibited enhanced photocatalytic degradation of methylene blue dye under ultraviolet light irradiation.

Cited by 199 publications

References 32 publications

Facile Fabrication of Anatase TiO₂ Microspheres on Solid Substrates and Surface Crystal Facet Transformation from {001} to {101}

Facile Fabrication of Anatase TiO₂ Microspheres on Solid Substrates and Surface Crystal Facet Transformation from {001} to {101}

Improved visible light photocatalytic activity of fluorine and nitrogen co-doped TiO2 with tunable nanoparticle size

Surface reconstruction, oxygen vacancy distribution and photocatalytic activity of hydrogenated titanium oxide thin film

Contact Info

Product

Resources

About

Flower-like TiO2 nanostructures with exposed {001} facets: Facile synthesis and enhanced photocatalysis

Abstract: Flower-like TiO(2) nanostructures with exposed {001} facets were synthesized by a low-temperature hydrothermal process from Ti powders for the first time, and they exhibited enhanced photocatalytic degradation of methylene blue dye under ultraviolet light irradiation.

Cited by 199 publications

References 32 publications

Facile Fabrication of Anatase TiO2 Microspheres on Solid Substrates and Surface Crystal Facet Transformation from {001} to {101}

Facile Fabrication of Anatase TiO2 Microspheres on Solid Substrates and Surface Crystal Facet Transformation from {001} to {101}

Improved visible light photocatalytic activity of fluorine and nitrogen co-doped TiO2 with tunable nanoparticle size

Surface reconstruction, oxygen vacancy distribution and photocatalytic activity of hydrogenated titanium oxide thin film

Contact Info

Product

Resources

About

Facile Fabrication of Anatase TiO₂ Microspheres on Solid Substrates and Surface Crystal Facet Transformation from {001} to {101}

Facile Fabrication of Anatase TiO₂ Microspheres on Solid Substrates and Surface Crystal Facet Transformation from {001} to {101}