Sonochemical preparation of TiO2 nanoparticles in the ionic liquid 1-(3-hydroxypropyl)-3-methylimidazolium-bis(trifluoromethylsulfonyl)amide

Tarek Alammar, Alexander Birkner, Osama Shekhah, Anja Verena Mudring*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Scopus citations


Spherical shaped anatase nanoparticles (ø 5 nm) have been synthesized in the ionic liquid 1-(3-hydroxypropyl)-3-methylimidazolium-bis(trifluoromethanesulfonyl)amide from titanium tetraisopropoxide by ultrasound assisted synthesis under ambient conditions. XRD, EDX, TEM, XPS, Raman, UV-vis, PL and BET measurements have been employed for characterization of the nanostructure of as-prepared TiO2. XRD and Raman measurements both show that the obtained material is crystalline with anatase structure. The morphology of TiO2 nanoparticles was characterized by transmission electron microscopy (TEM). The bandgap of the TiO2 nanocrystals estimated from XRD and UV-vis measurements is about 3.3 eV. The surface area of a typical sample is 177 m2 g-1. The synthesized anatase nanocrystals show good photocatalytic activity in the degradation of methylorange.

Original languageEnglish (US)
Pages (from-to)109-113
Number of pages5
JournalMaterials Chemistry and Physics
Issue number1
StatePublished - Mar 15 2010


  • Ionic liquids
  • Nanomaterials
  • Photocatalyst
  • Synthesis

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics


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