Porous WO3 with enhanced photocatalytic and selective gas sensing properties

Zhong Xie; Yuguang Zhu; Jing Xu; Hongtao Huang; Di Chen; Guozhen Shen

doi:10.1039/c1ce05579h

Porous WO₃ with enhanced photocatalytic and selective gas sensing properties

Zhong Xie
, Yuguang Zhu
, Jing Xu
, Hongtao Huang
, Di Chen^*
, Guozhen Shen

^*Corresponding author for this work

Huazhong University of Science and Technology

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

Pure porous WO₃ products consisting of 10-20 nm nanoparticles have been synthesized by controlling the hydrolysis of WCl₆ in ethanol solution with the assistance of polystyrene (PS) microspheres at room temperature. The products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area and diffuse reflectance spectroscopy. The photocatalytic and gas-sensing properties of the porous WO₃ samples were studied in detail. With large surface areas, these porous WO ₃ products exhibit both strong adsorption abilities and high degradation activities for methylene blue (MB) under visible light irradiation. And they also exhibit high sensitivity to organic gases (acetone, methanol, ethanol and formaldehyde), especially good selectivity to acetone at low concentration (0.5-5 ppm).

Original language	English
Pages (from-to)	6393-6398
Number of pages	6
Journal	CrystEngComm
Volume	13
Issue number	21
DOIs	https://doi.org/10.1039/c1ce05579h
Publication status	Published - 7 Nov 2011
Externally published	Yes

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title = "Porous WO3 with enhanced photocatalytic and selective gas sensing properties",

abstract = "Pure porous WO3 products consisting of 10-20 nm nanoparticles have been synthesized by controlling the hydrolysis of WCl6 in ethanol solution with the assistance of polystyrene (PS) microspheres at room temperature. The products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area and diffuse reflectance spectroscopy. The photocatalytic and gas-sensing properties of the porous WO3 samples were studied in detail. With large surface areas, these porous WO 3 products exhibit both strong adsorption abilities and high degradation activities for methylene blue (MB) under visible light irradiation. And they also exhibit high sensitivity to organic gases (acetone, methanol, ethanol and formaldehyde), especially good selectivity to acetone at low concentration (0.5-5 ppm).",

author = "Zhong Xie and Yuguang Zhu and Jing Xu and Hongtao Huang and Di Chen and Guozhen Shen",

year = "2011",

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doi = "10.1039/c1ce05579h",

language = "English",

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T1 - Porous WO3 with enhanced photocatalytic and selective gas sensing properties

AU - Xie, Zhong

AU - Zhu, Yuguang

AU - Xu, Jing

AU - Huang, Hongtao

AU - Chen, Di

AU - Shen, Guozhen

PY - 2011/11/7

Y1 - 2011/11/7

N2 - Pure porous WO3 products consisting of 10-20 nm nanoparticles have been synthesized by controlling the hydrolysis of WCl6 in ethanol solution with the assistance of polystyrene (PS) microspheres at room temperature. The products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area and diffuse reflectance spectroscopy. The photocatalytic and gas-sensing properties of the porous WO3 samples were studied in detail. With large surface areas, these porous WO 3 products exhibit both strong adsorption abilities and high degradation activities for methylene blue (MB) under visible light irradiation. And they also exhibit high sensitivity to organic gases (acetone, methanol, ethanol and formaldehyde), especially good selectivity to acetone at low concentration (0.5-5 ppm).

AB - Pure porous WO3 products consisting of 10-20 nm nanoparticles have been synthesized by controlling the hydrolysis of WCl6 in ethanol solution with the assistance of polystyrene (PS) microspheres at room temperature. The products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area and diffuse reflectance spectroscopy. The photocatalytic and gas-sensing properties of the porous WO3 samples were studied in detail. With large surface areas, these porous WO 3 products exhibit both strong adsorption abilities and high degradation activities for methylene blue (MB) under visible light irradiation. And they also exhibit high sensitivity to organic gases (acetone, methanol, ethanol and formaldehyde), especially good selectivity to acetone at low concentration (0.5-5 ppm).

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DO - 10.1039/c1ce05579h

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VL - 13

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JO - CrystEngComm

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ER -

Porous WO₃ with enhanced photocatalytic and selective gas sensing properties

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