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Related Experiment Video

Updated: Jun 19, 2026

The Effect of Interfacial Chemical Bonding in TiO2-SiO2 Composites on Their Photocatalytic NOx Abatement Performance
11:47

The Effect of Interfacial Chemical Bonding in TiO2-SiO2 Composites on Their Photocatalytic NOx Abatement Performance

Published on: July 4, 2017

Organic solvent-dispersed TiO(2) nanoparticle characterization.

YuanQiao Rao1, Brian Antalek, John Minter

  • 1Kodak Research Laboratories, Eastman Kodak Company, Rochester, New York 14650-2132, USA.

Langmuir : the ACS Journal of Surfaces and Colloids
|October 28, 2009
PubMed
Summary

Anatase titanium dioxide nanoparticles were coated with organic ligands, creating high-refractive-index materials. This study details a comprehensive analytical approach for characterizing these advanced nanomaterials.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Surface Chemistry

Background:

  • Anatase titanium dioxide (TiO2) nanoparticles are crucial in various applications.
  • Surface modification of TiO2 is essential for tailored properties.
  • Developing robust analytical methods for surface-treated nanoparticles is challenging.

Purpose of the Study:

  • To derivatize anatase TiO2 nanoparticles with (3-methacryloxypropyl)trimethoxysilane.
  • To characterize the structure, thickness, and morphology of surface-treated TiO2 nanoparticles and their organic coatings.
  • To present a multi-technique analytical methodology for anisotropic organic-inorganic nanoparticles.

Main Methods:

  • Transmission Electron Microscopy (TEM) and X-ray Diffraction (XRD) for core particle characterization.

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Last Updated: Jun 19, 2026

The Effect of Interfacial Chemical Bonding in TiO2-SiO2 Composites on Their Photocatalytic NOx Abatement Performance
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Published on: July 4, 2017

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  • Nuclear Magnetic Resonance (NMR), Quasielastic Light Scattering (QELS), and Size-Exclusion Chromatography (SEC) for organic component analysis.
  • Atomic Force Microscopy (AFM) for characterizing thin, high-refractive-index coatings.

    • Main Results:

    • Characterization of titania platelets with a modal diameter of 9.8 nm and thickness of ~1.5 nm.
    • Determination of a 1.5-1.9 nm thick organic ligand layer on the nanoparticles.
    • Detection of a significant population of 2 nm siloxane oligomers.

    Conclusions:

    • A combination of analytical techniques provides comprehensive data on surface-modified nanoparticles.
    • The developed methodology is effective for characterizing anisotropic organic-inorganic nanoparticles.
    • The findings offer insights into the structure and properties of TiO2-based nanomaterials for advanced applications.