Decomposition of formic acid in a photocatalytic reactor with a parallel array of four light sources

Shinpon Wang, Fumihide Shiraishi, Katsuyuki Nakano

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The performance of a photocatalytic reactor system with a parallel array of four 6W blacklight blue fluorescent lamps (wavelength: 300-400 nm) was investigated, based on the decomposition of formic acid in an aqueous solution. An aqueous solution of formic acid (7.8-22.0 gm-3) was recirculated between the photocatalytic reactor and perfectly-mixed flow container. The results show that the UV-light that penetrated through the wall of a glass tube and then passed through the flowing liquid solution accelerated the photocatalytic reaction occurring on the neighboring glass tubes, which greatly contributed to an increase in the reactor activity. This confirms that the arrangement of several light sources in parallel which uses effectively a three-dimensional space can lead to increased reactor activity and an increase in decomposition rates. A significant reduction in the reaction rate due to a film-diffusional resistance in the vicinity of the titanium dioxide film was observed.

Original languageEnglish
Pages (from-to)805-810
Number of pages6
JournalJournal of Chemical Technology and Biotechnology
Volume77
Issue number7
DOIs
Publication statusPublished - Jul 9 2002

Fingerprint

formic acid
Formic acid
Light sources
decomposition
Decomposition
Light
Glass
Fluorescent lamps
aqueous solution
glass
Ultraviolet Rays
Ultraviolet radiation
Titanium dioxide
Reaction rates
Containers
reaction rate
Wavelength
Liquids
wavelength
liquid

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Waste Management and Disposal
  • Pollution
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Decomposition of formic acid in a photocatalytic reactor with a parallel array of four light sources. / Wang, Shinpon; Shiraishi, Fumihide; Nakano, Katsuyuki.

In: Journal of Chemical Technology and Biotechnology, Vol. 77, No. 7, 09.07.2002, p. 805-810.

Research output: Contribution to journalArticle

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