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author:

Li, Danzhen (Li, Danzhen.) [1] (Scholars:李旦振) | Chen, Zhixin (Chen, Zhixin.) [2] (Scholars:陈志鑫) | Chen, Yilin (Chen, Yilin.) [3] | Li, Wenjuan (Li, Wenjuan.) [4] | Huang, Hanjie (Huang, Hanjie.) [5] | He, Yunhui (He, Yunhui.) [6] (Scholars:何运慧) | Fu, Xianzhi (Fu, Xianzhi.) [7] (Scholars:付贤智)

Indexed by:

EI Scopus SCIE

Abstract:

The bifunctional photocatalyst Pt/TiO2-xNx has been successfully prepared by wet impregnation. The properties of Pt/TiO2-xNx have been investigated by diffuse reflectance spectra, X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, a photoluminescence technique with terephthalic acid, and electric field induced surface photovoltage spectra. The photocatalytic activity of the sample was evaluated by the decomposition of volatile organic pollutants (VOCs) in a H-2-O-2 atmosphere under visible light irradiation. The results demonstrated that nitrogen-doped and platinum-modified TiO2 in a H-2-O-2 atmosphere could enormously increase the quantum efficiency of the photocatalytic system with excellent photocatalytic activity and high catalytic stability. The increased quantum efficiency can be explained by enhanced separation efficiency of photogenerated electron-hole pairs, higher interface electron transfer rate, and an increased number of surface hydroxyl radicals in the photocatalytic process. A mechanism was proposed to elucidate the degradation of VOCs over Pt/TiO2-xNx in a H-2-O-2 atmosphere under visible light irradiation.

Keyword:

Community:

  • [ 1 ] [Li, Danzhen]Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
  • [ 2 ] [Chen, Zhixin]Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
  • [ 3 ] [Chen, Yilin]Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
  • [ 4 ] [Li, Wenjuan]Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
  • [ 5 ] [Huang, Hanjie]Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
  • [ 6 ] [He, Yunhui]Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
  • [ 7 ] [Fu, Xianzhi]Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China

Reprint 's Address:

  • 李旦振

    [Li, Danzhen]Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China

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Source :

ENVIRONMENTAL SCIENCE & TECHNOLOGY

ISSN: 0013-936X

Year: 2008

Issue: 6

Volume: 42

Page: 2130-2135

4 . 4 5 8

JCR@2008

1 0 . 9 0 0

JCR@2023

ESI Discipline: ENVIRONMENT/ECOLOGY;

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 80

SCOPUS Cited Count: 87

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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