Photochromism-based detection of volatile organic compounds by W-doped TiO 2 nanofibers

Ming Jin, Xintong Zhang, Hongting Pu, Shunsuke Nishimoto, Taketoshi Murakami, Akira Fujishima

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

W-doped TiO 2 nanofibers with various compositions (W/Ti: 2-8%) were fabricated by the electrospinning method from respective precursor solutions containing tungsten(V) pentaethoxide, titanium tetraisopropoxide (TTIP), and polyvinylpyrrolidone (PVP), followed with calcination at 550°C. Morphological and structural characteristics of these nanofibers were studied with SEM, XRD and XPS. W-doping inhibited the crystal growth and anatase-to-rutile transformation of TiO 2 nanofibers. W-doped TiO 2 nanofiber mats showed good photocatalytic oxidation abilities for acetone. Obvious color change from white to blue of mats during the photocatalysis process can be detected by naked eyes, which provides a good way in detection of pollutants in indoor air, especially for the volatile organic compounds (VOCs).

Original languageEnglish
Pages (from-to)188-193
Number of pages6
JournalJournal of Colloid and Interface Science
Volume362
Issue number1
DOIs
Publication statusPublished - Oct 1 2011
Externally publishedYes

Fingerprint

Photochromism
Volatile Organic Compounds
Nanofibers
Volatile organic compounds
Povidone
Tungsten
Photocatalysis
Electrospinning
Acetone
Crystallization
Crystal growth
Calcination
Titanium dioxide
X ray photoelectron spectroscopy
Titanium
Doping (additives)
Color
Oxidation
Scanning electron microscopy
compound W

Keywords

  • Photocatalyst
  • Photocatalytic oxidation
  • Photochromism
  • TiO nanofiber
  • Volatile organic compounds

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Colloid and Surface Chemistry

Cite this

Photochromism-based detection of volatile organic compounds by W-doped TiO 2 nanofibers. / Jin, Ming; Zhang, Xintong; Pu, Hongting; Nishimoto, Shunsuke; Murakami, Taketoshi; Fujishima, Akira.

In: Journal of Colloid and Interface Science, Vol. 362, No. 1, 01.10.2011, p. 188-193.

Research output: Contribution to journalArticle

Jin, Ming ; Zhang, Xintong ; Pu, Hongting ; Nishimoto, Shunsuke ; Murakami, Taketoshi ; Fujishima, Akira. / Photochromism-based detection of volatile organic compounds by W-doped TiO 2 nanofibers. In: Journal of Colloid and Interface Science. 2011 ; Vol. 362, No. 1. pp. 188-193.
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