- Unagglomerated and monodisperse
- Mean diameter: 14 nm ± 3 nm
- Mean length: 55 nm ± 10 nm
- Aspect ratio: > 3
- Size distribution (length and diameter) (CV) < 25%
- Available as NanoXact (1 mg/mL) concentration
- Particles have a stearic acid surface and are provided in 1-butanol
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Which Surface Should I Choose?
at pH 7
Certificate of Analysis Examples
Please note that these are representative Certificates of Analyses (CoAs) provided as examples for this product. We provide a unique batch-specific CoA with each product during shipment; only the CoA that arrives with your product should be referred to for actual characterization and measurement data. If you would like an electronic copy of the CoA for the product you received or the material(s) we currently have in stock, please contact us.
|Product Line||Surface||Example CoA||Product #||Price|
|N NanoXact, 1 mg/mL||Stearic Acid||Download Example ↓||TROH55-1M||$95+|
|N NanoXact, 1 mg/mL||Stearic Acid||Download Example ↓||TROH55-5M||$395+|
|N NanoXact, 1 mg/mL||Stearic Acid||Download Example ↓||TROH55-10M||$695+|
|N NanoXact, 1 mg/mL||Stearic Acid||Download Example ↓||TROH55-25M||$1,395+|
Properties of Titanium Dioxide
The unique morphology and homogeneity of our titania nanoparticles makes them ideal for use in a variety of applications, including:
- Facet-selective catalysis
- Advanced pigments
- High refractive index optical coatings
Due to the high refractive index (~2.5) and large bandgap (~3.2 eV) of anatase TiO2, titania nanoparticles have excellent optical properties and scatter strongly throughout the visible spectrum. TiO2 exhibits a much “whiter” color than lower refractive index materials such as silica; for this reason, TiO2 is far and away the most ubiquitous white pigment in the world. Small, well-dispersed particles, such as our titania nanorods, will appear opalescent in solution, providing unique optical effects for coatings and cosmetics.
Titania is also notable for both its strong absorbance in the UV spectrum as well as its exceptional chemical stability, making it one of the most popular materials used in photocatalytic applications. With an appropriate co-catalyst deposited on its surface, titania is able to split water into hydrogen and oxygen under solar irradiation. When combined with an appropriate dye, titania nanoparticles are a critical component in dye-sensitized solar cells (DSSCs), and more recently they have been investigated for use in other classes of photovoltaics. The finely-tuned structures of our TiO2 nanomaterials make them an interesting candidate for basic energy research, as the effects of the particle morphology on carrier lifetime and transport may help facilitate improvements for solar energy conversion applications.
In addition to applications as a pigment and a UV-active photocatalyst, titania nanoparticles can be utilized in lieu of silica in instances where silica performs poorly. For instance, unlike silica, which is an acidic oxide and readily dissolves in high pH conditions, titania is a basic oxide and is stable at all but the lowest pHs. TiO2 coatings on plasmonic nanoparticles cause a much greater shift in the plasmon band versus silica shells due to the high refractive index of titania. Titania surfaces also exhibit unique selective adsorption properties for certain important biomolecules, notably phosphorylated proteins, a property not commonly seen in unmodified silica.
The surfaces and dispersion media of our titania nanorods can be tuned for your desired application. Contact us for more information on our custom fabrication capabilities.