Oxidation of methanol and formaldehyde to CO2 by a photocatalyst with an energy storage ability

Fei Yang, Yukina Takahashi, Nobuyuki Sakai, Tetsu Tatsuma

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A TiO2-Ni(OH)2 bilayer photocatalyst is known as a photocatalyst with energy storage abilities. Oxidative energy from the UV-irradiated TiO2 underlayer can be stored in the Ni(OH)2 overlayer. We investigated oxidation and mineralization of methanol and formaldehyde by the stored oxidative energy by mean of gas chromatography. When the methanol concentration in air is as low as 10 ppm, the mass conversion efficiency from methanol to CO2 is ∼86%. Formaldehyde can also be oxidized to CO2 by the stored energy.

Original languageEnglish
Pages (from-to)5166-5170
Number of pages5
JournalPhysical Chemistry Chemical Physics
Volume12
Issue number19
DOIs
Publication statusPublished - May 12 2010
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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