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634662

Sigma-Aldrich

Titanium(IV) oxide, mixture of rutile and anatase

nanopowder, <100 nm particle size (BET), 99.5% trace metals basis

Synonym(s):

Titanium dioxide

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About This Item

Linear Formula:
TiO2
CAS Number:
Molecular Weight:
79.87
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

99.5% trace metals basis

form

nanopowder

particle size

<100 nm (BET)
<50 nm (XRD)

SMILES string

O=[Ti]=O

InChI

1S/2O.Ti

InChI key

GWEVSGVZZGPLCZ-UHFFFAOYSA-N

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General description

Titanium(IV) oxide, mixture of rutile and anatase (TiO2) nanopowder is a photocatalytic material with anatase and rutile as the crystalline phases. The two minerals are utilized in photocatalysis due to their efficient charge separation across phase junctions.

Application

Photoelectrodes of varying properties can be made using colloidal suspensions of titanium(IV) oxide nanoparticles.
TiO2 can be used in a variety of medical implants, such as dental implants, spinal fixations, and joint replacements. It can also be used in a stable colloidal solution for the formation of RPMI cell culture medium. It forms a conductive layer in the fabrication of dye sensitized solar cells.

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Induction of cell death by TiO2 nanoparticles: studies on a human monoblastoid cell line
Vamanu CI, et al.
Toxicology in vitro, 22(7), 1689-1696 (2008)
Zumeta, I. et al.
Solar Energy Mat. and Solar Cells, 15-15 (2003)
A E Desjardins et al.
Optics express, 15(10), 6200-6209 (2007-05-14)
We present a novel method for rapidly acquiring optical coherence tomography (OCT) images at multiple backscattering angles. By angularly compounding these images, high levels of speckle reduction were achieved. Signal-to-noise ratio (SNR) improvements of 3.4 dB were obtained from a
Elina A Genina et al.
Journal of biomedical optics, 18(11), 111406-111406 (2013-07-17)
Fractional laser ablation is one of the relatively safe and minimally invasive methods used to administer micro- and nanoparticles into the skin at sufficiently large depth. In this article, we present the results of delivery of TiO₂ nanoparticles and Al₂O₃
Substrates for flexible electronics: A practical investigation on the electrical, film flexibility, optical, temperature, and solvent resistance properties
Zardetto V, et al.
Journal of Polymer Science. Part B, Polymer Physics, 49(9), 638-648 (2011)

Articles

Dye-sensitized solar cells directly convert sunlight to electricity

Over the last decade, dye-sensitized solar cells (DSSCs) have attracted much attention because these unconventional solar cells exhibit high performance and have the potential for low-cost production.

One of the more traditional photovoltaic devices, single crystalline silicon solar cells were invented more than 50 years ago, currently make up 94% of the market. Single crystalline silicon solar cells operate on the principle of p-n junctions formed by joining p-type and n-type semiconductors.

Titanium dioxide (TiO2) is an important n-type semiconducting material that shows interesting characteristics such as photoswitchable surface wettability, high photocatalytic activity, bistable electrical resistance states and high electron drift mobility.

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