A New Electrochemical Method to Prepare Mesoporous Titanium(IV) Oxide Photocatalyst Fixed on Alumite Substrate

Yasumichi Matsumoto, Yoshie Ishikawa, Minoru Nishida, Seiichiro Ii

Research output: Contribution to journalArticle

95 Citations (Scopus)

Abstract

A TiO2 film was deposited onto alumite using an electrochemical technique, where the initial electrodeposition was carried out by ac electrolysis in (NH4)2[TiO(C2O4)2] solution, followed by pulse electrolysis in TiCl3. This is a new method to prepare a mesoporous TiO2 photocatalyst film consisting of nanosized particles and to directly fix them onto the alumite substrate (Al/Al2O3). The sizes of the TiO2 particles in the prepared film were about 5 nm, and they consisted of mixtures of the anatase, rutile, and amorphous phases. This film had a high catalytic activity for the decomposition of acetaldehyde even under fluorescent lamp illumination. Moreover, the preparation cost is very low compared with other methods. Therefore, the prepared Al/Al2O3/ TiO2 plate is very useful for the practical photodecomposition of chemical contaminants in the atmosphere. The mechanisms of the TiO2 deposition and the photocatalysis are discussed.

Original languageEnglish
Pages (from-to)4204-4209
Number of pages6
JournalJournal of Physical Chemistry B
Volume104
Issue number17
Publication statusPublished - May 4 2000
Externally publishedYes

Fingerprint

Electrolysis
Titanium oxides
Photocatalysts
titanium
Electrochemical Techniques
Electroplating
oxides
Acetaldehyde
Substrates
electrolysis
Lighting
Atmosphere
Particle Size
Costs and Cost Analysis
Fluorescent lamps
photodecomposition
Photocatalysis
acetaldehyde
Electrodeposition
electrodeposition

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

A New Electrochemical Method to Prepare Mesoporous Titanium(IV) Oxide Photocatalyst Fixed on Alumite Substrate. / Matsumoto, Yasumichi; Ishikawa, Yoshie; Nishida, Minoru; Ii, Seiichiro.

In: Journal of Physical Chemistry B, Vol. 104, No. 17, 04.05.2000, p. 4204-4209.

Research output: Contribution to journalArticle

Matsumoto, Yasumichi ; Ishikawa, Yoshie ; Nishida, Minoru ; Ii, Seiichiro. / A New Electrochemical Method to Prepare Mesoporous Titanium(IV) Oxide Photocatalyst Fixed on Alumite Substrate. In: Journal of Physical Chemistry B. 2000 ; Vol. 104, No. 17. pp. 4204-4209.
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