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Nano-sized TiO2 Synthesis in Triton X-100 Reverse Micelles

  • H. Banu Yener
  • Selin Şarkaya
  • Şerife. Ş HelvacıEmail author
Conference paper
Part of the Progress in Colloid and Polymer Science book series (PROGCOLLOID, volume 137)

Abstract

To synthesize nano-sized TiO2, two different methods, namely thermal hydrolysis (TH) and reverse micelles as the nano reactors in the thermal hydrolysis method (RM-TH) were used, and their effects on the shape, crystal structure, and size of the TiO2 particles produced were investigated. In the RM-TH method, reverse micelles prepared by Triton X-100 / Cyclohexane / Aqueous TiCl4 solution was used as a template since the hydrolysis reaction took place in the aqueous core of the reverse micelle that led to a controllable synthesis of TiO2 particles. The XRD patterns of the as-prepared TiO2 particles produced by both methods indicated that their crystal structure was rutile. In the TH method, particles were highly agglomerated resulting in a pinecone-like structure: The pinecone-like structure contained several rods with a diameter of 50 nm which were formed by conical bundles of fine rods growing radially from the center with a diameter of 6 nm and length ranged between 400 and 1000 nm. On the other hand, more uniform sphere-like nanoclusters consisting of radially growing nanorods from the center with a diameter of 6 nm and length of 200 nm were produced in the RM-TH method due to the template feature of reverse micelles. Mechanisms of nucleation and crystal growth were proposed for both production methods.

Keywords

TiO2 Thermal hydrolysis Reverse micelles Rutile Polyethylene glycol tert-octylphenyl ether (Triton X-100) Growth mechanism 

Notes

Acknowledgements

This project is supported by The Scientific and Technological Research Council of Turkey (TUBITAK) through Project 104M255 and Ege University Scientific Research Foundation through Project 07-MUH-036.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • H. Banu Yener
    • 1
  • Selin Şarkaya
  • Şerife. Ş Helvacı
    • 1
    Email author
  1. 1.Faculty of Engineering, Chemical Engineering DepartmentEge UniversityBornova IzmirTurkey

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