Preparation of Nb2O5 and N co-doped TiO2 photocatalysts and their enhanced photocatalytic activities under visible light

Yanfang Shen; Tianying Xiong; Jianku Shang; Ke Yang

doi:10.1163/156856708784040650

Preparation of Nb₂O₅ and N co-doped TiO₂ photocatalysts and their enhanced photocatalytic activities under visible light

Yanfang Shen, Tianying Xiong, Jianku Shang, Ke Yang

Materials Science and Engineering

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

Abstract

Niobium pentaoxide (Nb₂O₅) and nitrogen co-doped TiO₂ photocatalysts were prepared by mechanical alloying with Nb ₂O₅, TiO₂ and urea as raw materials. The pure TiO₂ powders of Degussa P25 were chosen as precursor. Chemical and physical properties of the Nb₂O₅ and N co-doped TiO ₂ photocatalysts were investigated, including XRD patterns, XPS spectra, DRS spectra, FT-IR spectra and N₂ adsorption-desorption isotherms. Experiments on photodegradation of methylene blue (MB) and sulfosalicylic acid (SSA) under visible light were carried out to evaluate the photoactivities of the prepared samples, and the chemical oxygen demand (COD) analysis was also conducted as a comparison.

Original language	English (US)
Pages (from-to)	353-363
Number of pages	11
Journal	Research on Chemical Intermediates
Volume	34
Issue number	4
DOIs	https://doi.org/10.1163/156856708784040650
State	Published - Apr 1 2008

Keywords

Chemical oxygen demand
Co-doped
Niobium pentaoxide
Nitrogen
Photocatalysis

ASJC Scopus subject areas

Chemistry(all)

Online availability

10.1163/156856708784040650

Library availability

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Cite this

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title = "Preparation of Nb2O5 and N co-doped TiO2 photocatalysts and their enhanced photocatalytic activities under visible light",

abstract = "Niobium pentaoxide (Nb2O5) and nitrogen co-doped TiO2 photocatalysts were prepared by mechanical alloying with Nb 2O5, TiO2 and urea as raw materials. The pure TiO2 powders of Degussa P25 were chosen as precursor. Chemical and physical properties of the Nb2O5 and N co-doped TiO 2 photocatalysts were investigated, including XRD patterns, XPS spectra, DRS spectra, FT-IR spectra and N2 adsorption-desorption isotherms. Experiments on photodegradation of methylene blue (MB) and sulfosalicylic acid (SSA) under visible light were carried out to evaluate the photoactivities of the prepared samples, and the chemical oxygen demand (COD) analysis was also conducted as a comparison.",

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AU - Shang, Jianku

AU - Yang, Ke

PY - 2008/4/1

Y1 - 2008/4/1

N2 - Niobium pentaoxide (Nb2O5) and nitrogen co-doped TiO2 photocatalysts were prepared by mechanical alloying with Nb 2O5, TiO2 and urea as raw materials. The pure TiO2 powders of Degussa P25 were chosen as precursor. Chemical and physical properties of the Nb2O5 and N co-doped TiO 2 photocatalysts were investigated, including XRD patterns, XPS spectra, DRS spectra, FT-IR spectra and N2 adsorption-desorption isotherms. Experiments on photodegradation of methylene blue (MB) and sulfosalicylic acid (SSA) under visible light were carried out to evaluate the photoactivities of the prepared samples, and the chemical oxygen demand (COD) analysis was also conducted as a comparison.

AB - Niobium pentaoxide (Nb2O5) and nitrogen co-doped TiO2 photocatalysts were prepared by mechanical alloying with Nb 2O5, TiO2 and urea as raw materials. The pure TiO2 powders of Degussa P25 were chosen as precursor. Chemical and physical properties of the Nb2O5 and N co-doped TiO 2 photocatalysts were investigated, including XRD patterns, XPS spectra, DRS spectra, FT-IR spectra and N2 adsorption-desorption isotherms. Experiments on photodegradation of methylene blue (MB) and sulfosalicylic acid (SSA) under visible light were carried out to evaluate the photoactivities of the prepared samples, and the chemical oxygen demand (COD) analysis was also conducted as a comparison.

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KW - Nitrogen

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