Photocatalytic C60-amorphous TiO2 composites prepared by atomic layer deposition

Nóra Justh, Tamás Firkala, K. László, J. Lábár, Imre Miklós Szilágyi

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Nanocomposites of TiO2 and single fullerene (C60) molecule are prepared by atomic layer deposition (ALD). To create nucleation sites for the ALD reaction, the bare fullerene is functionalized by H2SO4/HNO3 treatment, which results in C60-SO3H. After a NaOH washing step the intermediate hydrolyzes into C60[sbnd]OH. This process and the consecutive ALD growth of TiO2 are monitored with FTIR, TG/DTA-MS, EDX, Raman, FTIR, XRD, and TEM measurements. Although the TiO2 grown by ALD at 80 and 160 °C onto fullerol is amorphous it enhances the decomposition of methyl orange under UV exposure. This study proves that amorphous TiO2 grown by low temperature ALD has photocatalytic activity, and it can be used e.g. as self-cleaning coatings also on heat sensitive substrates.

Original languageEnglish
Pages (from-to)497-502
Number of pages6
JournalApplied Surface Science
Volume419
DOIs
Publication statusPublished - Oct 15 2017

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Keywords

  • ALD
  • Amorphous
  • Composite materials
  • Fullerenes
  • Photocatalysis
  • TiO

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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