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Updated: May 10, 2026
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Synthesis and Reaction Chemistry of Nanosize Monosodium Titanate
Published on: February 23, 2016
Nanostructured polymer-titanium composites and titanium oxide through polymer swelling in titania precursor
1Department of Adsorption, Faculty of Chemistry, M. Curie-Sklodowska University, M. Curie-Sklodowska sq. 3, 20-031 Lublin, Poland.
Colloid and Polymer Science
|June 7, 2013
Summary
This study details the creation of polymer/titanium dioxide nanocomposites. Thermal treatment alters their structure, yielding porous TiO2 spheres and revealing pore changes using positron annihilation lifetime spectroscopy.
Area of Science:
- Materials Science
- Nanotechnology
- Physical Chemistry
Background:
- Polymer/metal oxide nanocomposites offer unique properties.
- Titanium dioxide (TiO2) is a versatile material with numerous applications.
- Controlling porosity in nanocomposites is crucial for performance.
Purpose of the Study:
- To synthesize polymer (XAD7HP)/Ti4+ nanocomposites.
- To investigate the structural and pore evolution of these nanocomposites upon thermal treatment.
- To characterize the resulting TiO2 nanostructures and their porosity.
Main Methods:
- Swelling of XAD7HP polymer in titanium (IV) ethoxide.
- Thermal treatment under vacuum at various temperatures (up to 600 °C).
- X-ray diffraction (XRD) for phase identification.
- Positron annihilation lifetime spectroscopy (PALS) for pore analysis.
- Low-temperature nitrogen adsorption for complementary porosity data.
Main Results:
- Nanocomposite beads exhibited enhanced porosity compared to the initial polymer.
- Thermal treatment up to 200 °C altered internal structure and packing.
- Calcination at 600 °C resulted in spherical TiO2 condensed phase.
- Significant changes in micro- and mesopore dimensions were observed after thermal treatment.
- PALS successfully identified and tracked micropore transformations.
Conclusions:
- Polymer/Ti4+ nanocomposites can be effectively prepared using a swelling method.
- Thermal processing is a viable route to control the structure and porosity of TiO2.
- PALS is a powerful tool for studying pore evolution in nanomaterials.
- The study provides insights into the formation of porous TiO2 nanostructures.
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