Chemical Physics Impact (Jun 2024)

Anisotropic magneli phase Ti-suboxides in β- cyclodextrin template - Enhanced charge separation upon gold doping

  • Monojit Sarkar,
  • Piyali Bhattacharya,
  • Hirak Chatterjee,
  • Sudeshna Sarkar,
  • Barun Mandal,
  • Sudipta Biswas,
  • Sujit Kumar Ghosh,
  • Swati De

Journal volume & issue
Vol. 8
p. 100432

Abstract

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Substoichiometric titanium oxides i.e. Magneli phase (MP) TiOx are attractive due to their conductive nature. However, their synthesis is challenging. In this work, Anisotropic MP- Ti4O7 nanoparticles and Au doped nanocomposites were synthesized using β- cyclodextrin as template. The MP nanomaterials were 20-30 nm in size. The synthesis conditions were mild. These MP- TiOx nanomaterials show efficient charge separation upon light excitation i.e. they (i) act as efficient photocatalysts; (ii) they can be sensitized by a fluorescent dye; (iii) finite element method (FEM) simulations indicate substantial interfacial plasmonic charge generation at the metal-semiconductor interface in the doped nanocomposites.

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