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Author:

Zhao, Zhenxuan (Zhao, Zhenxuan.) | Dai, Hongxing (Dai, Hongxing.) (Scholars:戴洪兴) | Deng, Jiguang (Deng, Jiguang.) | Liu, Yuxi (Liu, Yuxi.) | Au, Chak Tong (Au, Chak Tong.)

Indexed by:

EI Scopus SCIE

Abstract:

Porous S-doped bismuth vanadate with an olive-like morphology and its supported cobalt oxide (y wt% CoOx/BiVO4-delta S0.08, , y = 0.1, 0.8, and 1.6) photocatalysts were fabricated using the dodecylamine-assisted alcohol-hydrothermal and incipient wetness impregnation methods, respectively. It is shown that the y wt% CoOx/BiVO(4-delta)S0.08 photocatalysts were single-phase with a monoclinic scheetlite structure, a porous olive-like morphology, a surface area of 8.8-9.2 m(2)/g, and a bandgap energy of 2.38-2.41 eV. There was the co-presence of surface Bi5+, Bi3+, V5+, V3+, Co3+, and Co2+ species in y wt% CoOx/BiVO4-delta delta S-0.08. The 0.8 wt% CoOx/BiVO4-delta S0.08 sample performed the best for methylene blue degradation under visible-light illumination. The photocatalytic mechanism was also discussed. We believe that the sulfur and CoOx codoping, higher oxygen adspecies concentration, and lower bandgap energy were responsible for the excellent visible-light-driven catalytic activity of 0.8 wt% CoOx/BiVO(4-delta)S0.08. (C) 2013 Elsevier Masson SAS. All rights reserved.

Keyword:

Methylene blue degradation Visible-light-driven photocatalyst Supported cobalt oxide Sulfur-doped bismuth vanadate Porous olive-like morphology

Author Community:

  • [ 1 ] [Zhao, Zhenxuan]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 2 ] [Dai, Hongxing]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 3 ] [Deng, Jiguang]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 4 ] [Liu, Yuxi]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 5 ] [Au, Chak Tong]Hong Kong Baptist Univ, Dept Chem, Kowloon, Hong Kong, Peoples R China

Reprint Author's Address:

  • 戴洪兴

    [Dai, Hongxing]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China

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Source :

SOLID STATE SCIENCES

ISSN: 1293-2558

Year: 2013

Volume: 18

Page: 98-104

3 . 5 0 0

JCR@2022

ESI Discipline: PHYSICS;

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 22

SCOPUS Cited Count: 27

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 7

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