Investigation of Br-N Co-doped TiO2 photocatalysts: Preparation and photocatalytic activities under visible light

Yanfang Shen; Tianying Xiong; Hao Du; Huazi Jin; Jianku Shang; Ke Yang

doi:10.1007/s10971-009-2007-1

Investigation of Br-N Co-doped TiO₂ photocatalysts: Preparation and photocatalytic activities under visible light

Yanfang Shen, Tianying Xiong, Hao Du, Huazi Jin, Jianku Shang, Ke Yang

Materials Science and Engineering

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

Abstract

Bromine (Br) and nitrogen (N) co-doped TiO₂ ((Br-N-TiO ₂) photocatalysts were prepared by a sol-gel method. The catalysts were characterized by X-ray Diffraction (XRD), N₂ adsorption and desorption isotherms, X-ray Photoelectron Spectra (XPS), UV-Vis Diffraction Spectra and Electron Spin Response (ESR) Spectra. Experiments on photodegradation of Methylene Blue (MB) and Sulfosalicylic Acid (SSA) under visible light were carried out to evaluate the photocatalytic activities of the catalysts. Chemical Oxygen Demand (COD) analysis was also conducted to evaluate the mineralization degrees of the catalysts in MB photodegradation. Enhanced photocatalytic activities were observed for the Br-N-TiO₂ catalysts in the experiments of MB and SSA photodegradation. A possible mechanism was proposed to explain the improved photocatalytic activities of the Br-N-TiO ₂ catalysts.

Original language	English (US)
Pages (from-to)	41-48
Number of pages	8
Journal	Journal of Sol-Gel Science and Technology
Volume	52
Issue number	1
DOIs	https://doi.org/10.1007/s10971-009-2007-1
State	Published - Oct 2009

Keywords

Br-N-co-doped
Photodergradation
Sol-gel
TiO photocatalysts
Visible light

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Biomaterials
Condensed Matter Physics
Materials Chemistry

Online availability

10.1007/s10971-009-2007-1

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Cite this

@article{47e7731493bc4a1d94b12bd5ea6b33b5,

title = "Investigation of Br-N Co-doped TiO2 photocatalysts: Preparation and photocatalytic activities under visible light",

abstract = "Bromine (Br) and nitrogen (N) co-doped TiO2 ((Br-N-TiO 2) photocatalysts were prepared by a sol-gel method. The catalysts were characterized by X-ray Diffraction (XRD), N2 adsorption and desorption isotherms, X-ray Photoelectron Spectra (XPS), UV-Vis Diffraction Spectra and Electron Spin Response (ESR) Spectra. Experiments on photodegradation of Methylene Blue (MB) and Sulfosalicylic Acid (SSA) under visible light were carried out to evaluate the photocatalytic activities of the catalysts. Chemical Oxygen Demand (COD) analysis was also conducted to evaluate the mineralization degrees of the catalysts in MB photodegradation. Enhanced photocatalytic activities were observed for the Br-N-TiO2 catalysts in the experiments of MB and SSA photodegradation. A possible mechanism was proposed to explain the improved photocatalytic activities of the Br-N-TiO 2 catalysts.",

keywords = "Br-N-co-doped, Photodergradation, Sol-gel, TiO photocatalysts, Visible light",

author = "Yanfang Shen and Tianying Xiong and Hao Du and Huazi Jin and Jianku Shang and Ke Yang",

year = "2009",

month = oct,

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T1 - Investigation of Br-N Co-doped TiO2 photocatalysts

T2 - Preparation and photocatalytic activities under visible light

AU - Shen, Yanfang

AU - Xiong, Tianying

AU - Du, Hao

AU - Jin, Huazi

AU - Shang, Jianku

AU - Yang, Ke

PY - 2009/10

Y1 - 2009/10

N2 - Bromine (Br) and nitrogen (N) co-doped TiO2 ((Br-N-TiO 2) photocatalysts were prepared by a sol-gel method. The catalysts were characterized by X-ray Diffraction (XRD), N2 adsorption and desorption isotherms, X-ray Photoelectron Spectra (XPS), UV-Vis Diffraction Spectra and Electron Spin Response (ESR) Spectra. Experiments on photodegradation of Methylene Blue (MB) and Sulfosalicylic Acid (SSA) under visible light were carried out to evaluate the photocatalytic activities of the catalysts. Chemical Oxygen Demand (COD) analysis was also conducted to evaluate the mineralization degrees of the catalysts in MB photodegradation. Enhanced photocatalytic activities were observed for the Br-N-TiO2 catalysts in the experiments of MB and SSA photodegradation. A possible mechanism was proposed to explain the improved photocatalytic activities of the Br-N-TiO 2 catalysts.

AB - Bromine (Br) and nitrogen (N) co-doped TiO2 ((Br-N-TiO 2) photocatalysts were prepared by a sol-gel method. The catalysts were characterized by X-ray Diffraction (XRD), N2 adsorption and desorption isotherms, X-ray Photoelectron Spectra (XPS), UV-Vis Diffraction Spectra and Electron Spin Response (ESR) Spectra. Experiments on photodegradation of Methylene Blue (MB) and Sulfosalicylic Acid (SSA) under visible light were carried out to evaluate the photocatalytic activities of the catalysts. Chemical Oxygen Demand (COD) analysis was also conducted to evaluate the mineralization degrees of the catalysts in MB photodegradation. Enhanced photocatalytic activities were observed for the Br-N-TiO2 catalysts in the experiments of MB and SSA photodegradation. A possible mechanism was proposed to explain the improved photocatalytic activities of the Br-N-TiO 2 catalysts.

KW - Br-N-co-doped

KW - Photodergradation

KW - Sol-gel

KW - TiO photocatalysts

KW - Visible light

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