Gas phase photocatalytic oxidation of trichloroethylene on mesoporous TiO2 whiskers

Jian Ping Zhang; Dong Li; Wei Fang; Chang Liu; Zhu Hong Yang; Xiao Hua Lu

Gas phase photocatalytic oxidation of trichloroethylene on mesoporous TiO₂ whiskers

Jian Ping Zhang, Dong Li, Wei Fang, Chang Liu, Zhu Hong Yang, Xiao Hua Lu

College of Chemical Engineering

Nanjing Tech University

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

2 Scopus citations

Abstract

Anatase TiO₂ whiskers were synthesized by the reaction of TiO₂·H₂O and K₂CO₃. The analytical results showed that the product was anatase with the sizes within microns, high ratio of area to mass and good uniformity in apertures. The photocatalytic activity of mesoporous TiO₂ for the oxidation of trichloroethylene (TCE) in gas phase was studied under irradiation of UV lamp at 365 nm wavelength. Its degradation rate was up to 95% catalyzed by mesoporous TiO₂, which was higher than that of Degussa P-25 TiO₂ (87%). The degradation rate of TCE was accelerated with increasing the initial concentration, which reached the highest rate when the air velocity was 1.64 cm/s, and O₂ boosted the photocatalytic reaction rate. Finally, Langmuir-Hinshelwood model was used to describe the photocatalytic reaction.

Original language	English
Pages (from-to)	171-175
Number of pages	5
Journal	Guocheng Gongcheng Xuebao/The Chinese Journal of Process Engineering
Volume	9
Issue number	1
State	Published - Feb 2009

Keywords

Gas-solid photocatalysis
Mesoporous TiO
Trichloroethylene

Cite this

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title = "Gas phase photocatalytic oxidation of trichloroethylene on mesoporous TiO2 whiskers",

abstract = "Anatase TiO2 whiskers were synthesized by the reaction of TiO2·H2O and K2CO3. The analytical results showed that the product was anatase with the sizes within microns, high ratio of area to mass and good uniformity in apertures. The photocatalytic activity of mesoporous TiO2 for the oxidation of trichloroethylene (TCE) in gas phase was studied under irradiation of UV lamp at 365 nm wavelength. Its degradation rate was up to 95% catalyzed by mesoporous TiO2, which was higher than that of Degussa P-25 TiO2 (87%). The degradation rate of TCE was accelerated with increasing the initial concentration, which reached the highest rate when the air velocity was 1.64 cm/s, and O2 boosted the photocatalytic reaction rate. Finally, Langmuir-Hinshelwood model was used to describe the photocatalytic reaction.",

keywords = "Gas-solid photocatalysis, Mesoporous TiO, Trichloroethylene",

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T1 - Gas phase photocatalytic oxidation of trichloroethylene on mesoporous TiO2 whiskers

AU - Zhang, Jian Ping

AU - Li, Dong

AU - Fang, Wei

AU - Liu, Chang

AU - Yang, Zhu Hong

AU - Lu, Xiao Hua

PY - 2009/2

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N2 - Anatase TiO2 whiskers were synthesized by the reaction of TiO2·H2O and K2CO3. The analytical results showed that the product was anatase with the sizes within microns, high ratio of area to mass and good uniformity in apertures. The photocatalytic activity of mesoporous TiO2 for the oxidation of trichloroethylene (TCE) in gas phase was studied under irradiation of UV lamp at 365 nm wavelength. Its degradation rate was up to 95% catalyzed by mesoporous TiO2, which was higher than that of Degussa P-25 TiO2 (87%). The degradation rate of TCE was accelerated with increasing the initial concentration, which reached the highest rate when the air velocity was 1.64 cm/s, and O2 boosted the photocatalytic reaction rate. Finally, Langmuir-Hinshelwood model was used to describe the photocatalytic reaction.

AB - Anatase TiO2 whiskers were synthesized by the reaction of TiO2·H2O and K2CO3. The analytical results showed that the product was anatase with the sizes within microns, high ratio of area to mass and good uniformity in apertures. The photocatalytic activity of mesoporous TiO2 for the oxidation of trichloroethylene (TCE) in gas phase was studied under irradiation of UV lamp at 365 nm wavelength. Its degradation rate was up to 95% catalyzed by mesoporous TiO2, which was higher than that of Degussa P-25 TiO2 (87%). The degradation rate of TCE was accelerated with increasing the initial concentration, which reached the highest rate when the air velocity was 1.64 cm/s, and O2 boosted the photocatalytic reaction rate. Finally, Langmuir-Hinshelwood model was used to describe the photocatalytic reaction.

KW - Gas-solid photocatalysis

KW - Mesoporous TiO

KW - Trichloroethylene

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Gas phase photocatalytic oxidation of trichloroethylene on mesoporous TiO₂ whiskers

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