Photocatalytic reduction of NO with ethanol on Ag/TiO2

Gy Halasi, A. Kecskeméti, F. Solymosi

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The effect of illumination on the surface interaction and the reaction between NO + C2H5OH was investigated on TiO2 and Ag/TiO2. By means of Fourier transform infrared spectroscopy the formation of an absorption band at 2,210 cm-1 was observed on pure TiO2, which was attributed to the NCO species. Similar measurements on Ag/TiO2 produced another spectral feature at 2,170 cm -1, which was assigned to the vibration of NCO bonded to Ag. These absorption bands formed more easily on oxidized than on reduced surfaces. Study of the catalytic reduction of NO with ethanol showed that the illumination of the system induced the reaction even at room temperature. Graphical Abstract: Photo catalysis of NO + C2H5OH reaction on TiO2 (T R = 473 K) (A), 2% Ag/TiO2 (T R = 473 K) (B) and (T OX = 573 K) (C). [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)16-20
Number of pages5
JournalCatalysis Letters
Volume135
Issue number1-2
DOIs
Publication statusPublished - Mar 1 2010

Keywords

  • Ag/TiO photocatalyst
  • Photocatalytic reduction of NO
  • Photoinduced formation of isocyanate
  • Surface interaction between NO and ethanol

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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