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

doi:10.1016/j.jcis.2011.06.041

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 journal › Article

18 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 language	English
Pages (from-to)	188-193
Number of pages	6
Journal	Journal of Colloid And Interface Science
Volume	362
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2011.06.041
Publication status	Published - Oct 1 2011
Externally published	Yes

Keywords

Photocatalyst
Photocatalytic oxidation
Photochromism
TiO nanofiber
Volatile organic compounds

ASJC Scopus subject areas

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

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title = "Photochromism-based detection of volatile organic compounds by W-doped TiO 2 nanofibers",

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).",

keywords = "Photocatalyst, Photocatalytic oxidation, Photochromism, TiO nanofiber, Volatile organic compounds",

author = "Ming Jin and Xintong Zhang and Hongting Pu and Shunsuke Nishimoto and Taketoshi Murakami and Akira Fujishima",

year = "2011",

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T1 - Photochromism-based detection of volatile organic compounds by W-doped TiO 2 nanofibers

AU - Jin, Ming

AU - Zhang, Xintong

AU - Pu, Hongting

AU - Nishimoto, Shunsuke

AU - Murakami, Taketoshi

AU - Fujishima, Akira

PY - 2011/10/1

Y1 - 2011/10/1

N2 - 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).

AB - 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).

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KW - Photochromism

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