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Synthesis and Characterization of Surface-Protected Nanocrystalline Titania Particles
Abstract
Monodisperse nonaggregated nanoparticles of titania are obtained through hydrolysis at 60 °C of titanium butoxide in the presence of acetylacetone and para-toluenesulfonic acid. After the particles are dried, the resulting xerosols can be dispersed without aggregation in water−alcoholic or alcoholic solutions at concentrations higher than 1 M. The characterizations of the nanoparticles were carried out in solution by using quasi-elastic light scattering (QELS); FTIR; 13 C, 17 O, and 1 H NMR and in solid state by X-ray diffraction, transmission electron microscopy (TEM), FTIR, thermogravimetry−dynamic thermal analysis (TG−DTA), 13 C cross-polarization−magic angle spinning (CP−MAS) NMR. The mean size of the anatase oxide core can be adjusted in the 1−5 nm range by a careful tuning of the synthetic conditions. The protection of these particles toward aggregation is ensured through the complexation of the surface by acetylacetonato ligands and through an adsorbed hybrid organic−inorganic layer made with acetylacetone, para-toluenesulfonic acid, and water.
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Cited by
Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Applications
Chen, X., & Mao, S. S. (2007) · Chemical Reviews · doi:10.1021/cr0500535 · Cited by 10,688
Applications of hybrid organic–inorganic nanocomposites
Sanchez, C., Julián, B., Belleville, P., & Popall, M. (2005) · Journal of Materials Chemistry · doi:10.1039/b509097k · Cited by 2,636
Self-citationThe Evolution of “sol-Gel” Chemistry as a Technique for Materials Synthesis
Danks, A. E., Hall, S. R., & Schnepp, Z. (2016) · Materials Horizons · doi:10.1039/c5mh00260e · Cited by 1,718
Designed Hybrid Organic−Inorganic Nanocomposites from Functional Nanobuilding Blocks
Sanchez, C., Soler-Illia, G. J. D. A. A., Ribot, F., Lalot, T., Mayer, C. R., & Cabuil, V. (2001) · Chemistry of Materials · doi:10.1021/cm011061e · Cited by 1,240
Self-citationSol–gel based materials for biomedical applications
Owens, G. J., Singh, R. K., Foroutan, F., Alqaysi, M., Han, C.-M., Mahapatra, C., Kim, H.-W., & Knowles, J. C. (2016) · Progress in Materials Science · doi:10.1016/j.pmatsci.2015.12.001 · Cited by 958
Metadata
- Authors
- Scolan, E., & Sanchez, C.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 1998-09-24
- Volume
- 10
- Issue
- 10
- Pages
- 3217-3223
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W1999138898
- Cited by
- 261
- References
- 0
- FWCI
- 7.03
- Type
- journal article
- Language
- en
- Open access
- closed
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