Preparation and Characterization of Nano-TiO&lt;sub&gt;2&lt;/sub&gt; Powder

Li, Bao Rang; Wang, Xiao Hui; Yan, Minyu; Li, Long Tu

doi:10.4028/www.scientific.net/kem.224-226.577

Cited by 33 publications

(35 citation statements)

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“…In particular TiO 2 nanoparticles are in the focus of research and thus many reports on electrical, optical, and structural properties of TiO 2 nanoparticles can be found [1][2][3][4] . B. Sathyaseelanet al 5 investigated structural, optical and morphological properties of post-growth calcined TiO 2 nanopowder.…”

Section: Introductionmentioning

confidence: 99%

Titanium Dioxide Nanoparticles: Synthesis, X-Ray Line Analysis and Chemical Composition Study

Chenari

Seibel²,

Hauschild³

et al. 2016

Mat. Res.

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TiO 2 nanoparticleshave been synthesized by the sol-gel method using titanium alkoxide and isopropanolas a precursor. The structural properties and chemical composition of the TiO 2 nanoparticles were studied usingX-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy.The X-ray powder diffraction pattern confirms that the particles are mainly composed of the anatase phase with the preferential orientation along [101] direction. The physical parameters such as strain, stress and energy density were investigated from the Williamson-Hall (W-H) plot assuming a uniform deformation model (UDM), and uniform deformation energy density model (UDEDM).The W-H analysis shows an anisotropic nature of the strain in nanopowders. The scanning electron microscopy image shows clear TiO 2 nanoparticles with particle sizes varying from 60 to 80nm. The results of mean particle size of TiO 2 nanoparticles show an inter correlation with the W-H analysis and SEM results. Our X-ray photoelectron spectroscopy spectra show that nearly a complete amount of titanium has reacted to TiO 2 .

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Section: Introductionmentioning

confidence: 99%

Titanium Dioxide Nanoparticles: Synthesis, X-Ray Line Analysis and Chemical Composition Study

Chenari

Seibel²,

Hauschild³

et al. 2016

Mat. Res.

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“…The properties of TiO 2 are determined by the morphology of its particles, the size of its crystals and its crystalline structure, which depend on the choice of method for its synthesis and final heat treatment [10]. Nanocrystalline TiO 2 particles are usually obtained by crystallization (chemical precipitation) [11], the microemulsion method (reverse micelles) [12], the sol-gel method [13][14][15][16][17] or hydrothermal crystallization [18][19][20][21][22]. Each of these methods has its own advantages and drawbacks, but a common factor that connects them is the ability to obtain materials with strictly defined properties.…”

Section: Introductionmentioning

confidence: 99%

The influence of addition of a catalyst and chelating agent on the properties of titanium dioxide synthesized via the sol–gel method

Siwińska-Stefańska

Zdarta

Paukszta

et al. 2015

J Sol-Gel Sci Technol

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Titanium dioxide powders were prepared via the sol-gel method, using titanium alkoxide as a precursor. It was investigated how the addition of a catalyst (ammonia) and chelating agent (acetylacetone), as well as the temperature of calcination, affects the properties of the resulting TiO 2 powder. The physicochemical properties of samples were determined, including the dispersion, morphology and microstructure of the systems (particle size distribution, TEM images), crystalline structure (XRD), characteristics of porous structure (BET), and thermal stability (TGA/DTA). The samples were also analyzed using Fourier transform infrared spectroscopy. In addition, for selected TiO 2 systems, their photocatalytic activity in the decomposition of C.I. Basic Blue 9 was investigated. Our research results show that the presence of chelating agent in the synthesis of titanium dioxide caused significant changes in dispersive properties, crystalline structure and porous structure parameters. The novel feature of this work is the proposed method of synthesis of highly photoactive titanium dioxide with desirable physicochemical properties in the presence of a chelating agent such as acetylacetone. Graphical Abstract

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“…Flash calcination works in the same way as calcination (described above), however it is done far more quickly, with flash calcination taking <1 s whilst traditional calcination can take hours [70], [72]. The flash calcination of kaolin particles results in pockets of air forming from the quick evaporation of water molecules, and thus expansion within the mineral and subsequently the resultant air voids give an increase in opacity.…”

Section: F) Flash Calcined Claysmentioning

confidence: 99%

“…Clay calcination is the process of heating clay minerals at high temperatures (>1000 °C), keeping the clays at high temperature for up to several hours and then cooling the clays to room temperature [70]. Calcined kaolin has a higher opacity compared to hydrous kaolin, and as a result, calcined kaolin is being increasingly used as a filler in paints due to the cost of rutile TiO 2 [41], [71].…”

Section: E) Calcined Claysmentioning

confidence: 99%

Low Carbon Footprint TiO2 Substitutes in Paint: A Review

Ruszala¹,

Rowson²,

Grover³

et al. 2015

IJCEA

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Abstract-Titanium dioxide (TiO 2 ) is one of the most efficient light scattering pigments known to man, and as a result it is widely used to deliver opacity, especially in paint formulations. However, due to the cost of TiO 2 , dwindling resources, and an energy intensive manufacturing process which produces undesirable by-products, substitutes are required to maintain a source of white pigment in the future and to comply with changing sustainability legislation. Many substitutes exist, including kaolin (both untreated and calcined), and hollow latex spheres. These, along with other alternatives, are reviewed.

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Preparation and Characterization of Nano-TiO<sub>2</sub> Powder

Cited by 33 publications

References 0 publications

Titanium Dioxide Nanoparticles: Synthesis, X-Ray Line Analysis and Chemical Composition Study

Titanium Dioxide Nanoparticles: Synthesis, X-Ray Line Analysis and Chemical Composition Study

The influence of addition of a catalyst and chelating agent on the properties of titanium dioxide synthesized via the sol–gel method

Low Carbon Footprint TiO2 Substitutes in Paint: A Review

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