(N, F)-codoped TiO2 nanocrystals as visible light-activated photocatalyst

Yanling Meng; Jiansong Chen; Ying Wang; Hanming Ding; Yongkui Shan

(N, F)-codoped TiO₂ nanocrystals as visible light-activated photocatalyst

Yanling Meng^*
, Jiansong Chen
, Ying Wang
, Hanming Ding
, Yongkui Shan

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

East China Normal University

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

11 Scopus citations

Abstract

(N, F)-codoped anatase TiO₂ nanocrystals with active visible light response were prepared by using a simple sol-gel approach. X-ray photoelectron spectroscopy measurements suggested that the substitutional N and F species replaced the lattice oxygen atoms in TiO₂ nanocrystals. Such nanocrystals showed strong absorption from 400 to 550 nm, which was mainly induced by nitrogen doping. The phase transformation from anatase to rutile was hindered by fluorine doping at high calcination temperatures, which was verified by XRD patterns. The N₂ adsorption-desorption isotherms revealed the absence of mesopores in these nanocrystals. The (N, F)-codoped TiO₂ nanocrystals showed satisfying photocatalytic activity on the photo-degradation of methylene blue under visible light.

Original language	English
Pages (from-to)	73-76
Number of pages	4
Journal	Journal of Materials Science and Technology
Volume	25
Issue number	1
State	Published - Jan 2009

Keywords

(N, F)-codoping
Sol-gel method
TiO nanocrystal
Visible light photocatalyst

Cite this

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title = "(N, F)-codoped TiO2 nanocrystals as visible light-activated photocatalyst",

abstract = "(N, F)-codoped anatase TiO2 nanocrystals with active visible light response were prepared by using a simple sol-gel approach. X-ray photoelectron spectroscopy measurements suggested that the substitutional N and F species replaced the lattice oxygen atoms in TiO2 nanocrystals. Such nanocrystals showed strong absorption from 400 to 550 nm, which was mainly induced by nitrogen doping. The phase transformation from anatase to rutile was hindered by fluorine doping at high calcination temperatures, which was verified by XRD patterns. The N2 adsorption-desorption isotherms revealed the absence of mesopores in these nanocrystals. The (N, F)-codoped TiO2 nanocrystals showed satisfying photocatalytic activity on the photo-degradation of methylene blue under visible light.",

keywords = "(N, F)-codoping, Sol-gel method, TiO nanocrystal, Visible light photocatalyst",

author = "Yanling Meng and Jiansong Chen and Ying Wang and Hanming Ding and Yongkui Shan",

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language = "英语",

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journal = "Journal of Materials Science and Technology",

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TY - JOUR

T1 - (N, F)-codoped TiO2 nanocrystals as visible light-activated photocatalyst

AU - Meng, Yanling

AU - Chen, Jiansong

AU - Wang, Ying

AU - Ding, Hanming

AU - Shan, Yongkui

PY - 2009/1

Y1 - 2009/1

N2 - (N, F)-codoped anatase TiO2 nanocrystals with active visible light response were prepared by using a simple sol-gel approach. X-ray photoelectron spectroscopy measurements suggested that the substitutional N and F species replaced the lattice oxygen atoms in TiO2 nanocrystals. Such nanocrystals showed strong absorption from 400 to 550 nm, which was mainly induced by nitrogen doping. The phase transformation from anatase to rutile was hindered by fluorine doping at high calcination temperatures, which was verified by XRD patterns. The N2 adsorption-desorption isotherms revealed the absence of mesopores in these nanocrystals. The (N, F)-codoped TiO2 nanocrystals showed satisfying photocatalytic activity on the photo-degradation of methylene blue under visible light.

AB - (N, F)-codoped anatase TiO2 nanocrystals with active visible light response were prepared by using a simple sol-gel approach. X-ray photoelectron spectroscopy measurements suggested that the substitutional N and F species replaced the lattice oxygen atoms in TiO2 nanocrystals. Such nanocrystals showed strong absorption from 400 to 550 nm, which was mainly induced by nitrogen doping. The phase transformation from anatase to rutile was hindered by fluorine doping at high calcination temperatures, which was verified by XRD patterns. The N2 adsorption-desorption isotherms revealed the absence of mesopores in these nanocrystals. The (N, F)-codoped TiO2 nanocrystals showed satisfying photocatalytic activity on the photo-degradation of methylene blue under visible light.

KW - (N, F)-codoping

KW - Sol-gel method

KW - TiO nanocrystal

KW - Visible light photocatalyst

UR - https://www.scopus.com/pages/publications/60949085614

M3 - 文章

AN - SCOPUS:60949085614

SN - 1005-0302

VL - 25

SP - 73

EP - 76

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

IS - 1

ER -

(N, F)-codoped TiO₂ nanocrystals as visible light-activated photocatalyst

Abstract

Keywords

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