Comparative study on photocatalytic properties of TiO2 nanoparticles prepared in acidic medium and basic medium by hydrothermal method

Bai Fu Xin; Li Li; Peng Wang

Comparative study on photocatalytic properties of TiO₂ nanoparticles prepared in acidic medium and basic medium by hydrothermal method

Bai Fu Xin, Li Li, Peng Wang

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

Abstract

In order to investigate the difference of phtotocatalytic properties of TiO₂ samples prepared in different pH conditions, TiO₂ nanoparticles were prepared in acidic medium and basic medium by a hydrothermal process, respectively. The samples were characterized using XRD, TEM, BET, XPS, surface photovoltage spectroscopy (SPS) and field-induced surface photovoltage spectroscopy (FISPS). Effects of temperature and pH in the hydrothermal process on particle sizes, specific surface areas, and photocatalytic properties of the TiO₂ nanocrystalline were investigated. The experimental results indicate that the photocatalysis activity of TiO₂ nanoparticles prepared in basic medium (B-TiO₂) is superior to that in acidic medium (A-TiO₂), which is ascribed to the difference of surface state between A-TiO₂ and B-TiO₂.

Original language	English
Pages (from-to)	703-707
Number of pages	5
Journal	Journal of Harbin Institute of Technology (New Series)
Volume	16
Issue number	5
State	Published - Oct 2009
Externally published	Yes

Keywords

Hydrothermal
Photocatalysis
SPS
TiO

Cite this

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abstract = "In order to investigate the difference of phtotocatalytic properties of TiO2 samples prepared in different pH conditions, TiO2 nanoparticles were prepared in acidic medium and basic medium by a hydrothermal process, respectively. The samples were characterized using XRD, TEM, BET, XPS, surface photovoltage spectroscopy (SPS) and field-induced surface photovoltage spectroscopy (FISPS). Effects of temperature and pH in the hydrothermal process on particle sizes, specific surface areas, and photocatalytic properties of the TiO2 nanocrystalline were investigated. The experimental results indicate that the photocatalysis activity of TiO2 nanoparticles prepared in basic medium (B-TiO2) is superior to that in acidic medium (A-TiO2), which is ascribed to the difference of surface state between A-TiO2 and B-TiO2.",

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author = "Xin, {Bai Fu} and Li Li and Peng Wang",

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T1 - Comparative study on photocatalytic properties of TiO2 nanoparticles prepared in acidic medium and basic medium by hydrothermal method

AU - Xin, Bai Fu

AU - Li, Li

AU - Wang, Peng

PY - 2009/10

Y1 - 2009/10

N2 - In order to investigate the difference of phtotocatalytic properties of TiO2 samples prepared in different pH conditions, TiO2 nanoparticles were prepared in acidic medium and basic medium by a hydrothermal process, respectively. The samples were characterized using XRD, TEM, BET, XPS, surface photovoltage spectroscopy (SPS) and field-induced surface photovoltage spectroscopy (FISPS). Effects of temperature and pH in the hydrothermal process on particle sizes, specific surface areas, and photocatalytic properties of the TiO2 nanocrystalline were investigated. The experimental results indicate that the photocatalysis activity of TiO2 nanoparticles prepared in basic medium (B-TiO2) is superior to that in acidic medium (A-TiO2), which is ascribed to the difference of surface state between A-TiO2 and B-TiO2.

AB - In order to investigate the difference of phtotocatalytic properties of TiO2 samples prepared in different pH conditions, TiO2 nanoparticles were prepared in acidic medium and basic medium by a hydrothermal process, respectively. The samples were characterized using XRD, TEM, BET, XPS, surface photovoltage spectroscopy (SPS) and field-induced surface photovoltage spectroscopy (FISPS). Effects of temperature and pH in the hydrothermal process on particle sizes, specific surface areas, and photocatalytic properties of the TiO2 nanocrystalline were investigated. The experimental results indicate that the photocatalysis activity of TiO2 nanoparticles prepared in basic medium (B-TiO2) is superior to that in acidic medium (A-TiO2), which is ascribed to the difference of surface state between A-TiO2 and B-TiO2.

KW - Hydrothermal

KW - Photocatalysis

KW - SPS

KW - TiO

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SN - 1005-9113

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JO - Journal of Harbin Institute of Technology (New Series)

JF - Journal of Harbin Institute of Technology (New Series)

IS - 5

ER -

Comparative study on photocatalytic properties of TiO2 nanoparticles prepared in acidic medium and basic medium by hydrothermal method

Abstract

Keywords

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Cite this

Comparative study on photocatalytic properties of TiO₂ nanoparticles prepared in acidic medium and basic medium by hydrothermal method