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Preparation and characterization of ultrafine TiO2 particles in reverse micelles by hydrolysis of titanium di-ethylhexyl sulfosuccinate

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Abstract

We describe the synthesis and characterization of ultrafine TiO2 particles (in both anatase as well as rutile form) produced by a chemical reaction within the aqueous core of a water-in-oil microemulsion. The microemulsion was stabilized and the Ti4+ ions provided by a functionalized surfactant derived from the commercially available Aerosol-OT, i.e., sodium bis (2-ethylhexyl) sulfosuccinate (Na-DEHSS). The Na+ ions in Aerosol-OT were completely replaced by Ti4+ through an ion-exchange reaction in nonaqueous solvents. Ultrafine TiO2 particles were produced by the hydrolysis of the Ti-containing surfactant in the water droplets. The dependence of the size of the precipitated TiO2 · xH2O particles on various structure parameters of the microemulsion was studied in detail.

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Authors and Affiliations

  1. Department of Chemistry, University of Delhi, Delhi, 110 007, India

    Manjari Lal, Vishal Chhabra & Amarnath Maitra

  2. Materials Research Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay, 400 005, India

    Pushan Ayyub

Authors
  1. Manjari Lal
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  2. Vishal Chhabra
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  3. Pushan Ayyub
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  4. Amarnath Maitra
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Lal, M., Chhabra, V., Ayyub, P. et al. Preparation and characterization of ultrafine TiO2 particles in reverse micelles by hydrolysis of titanium di-ethylhexyl sulfosuccinate. Journal of Materials Research 13, 1249–1254 (1998). https://doi.org/10.1557/JMR.1998.0178

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  • DOI: https://doi.org/10.1557/JMR.1998.0178

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