Effect of temperature on the action spectra of pristine and Cu-grafted titania

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Abstract

The dependence of action spectra for pristine and Cu-grafted anatase TiO2 on temperature for photocatalytic acetone vapor oxidation at 40, 100 and 140 °C is described. The results obtained demonstrate the thermal inhibition of activity under UV irradiation for pristine titania at 140 °C, while for TiO2 grafted with copper species this inhibition is suppressed. Photonic efficiency of visible radiation energy utilization by Cu-grafted titania increases with temperature and exceeds the corresponding value for pure anatase in the investigated temperature range.

Original languageEnglish
Pages (from-to)283-285
Number of pages3
JournalMendeleev Communications
Volume32
Issue number2
DOIs
Publication statusPublished - 1 Mar 2022

Keywords

  • action spectra
  • copper
  • grafting
  • oxidation
  • thermal activation
  • TiO photocatalysis

OECD FOS+WOS

  • 1.04 CHEMICAL SCIENCES

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