Synthesis and characterization of g-C 3 N 4 /Ag 3 VO 4 composites with significantly enhanced visible-light photocatalytic activity for triphenylmethane dye degradation

Synthesis and characterization of g-C 3 N 4 /Ag 3 VO 4 composites with significantly enhanced... 1 Introduction</h5> Industrial wastewaters, especially such as tannery and textile processing effluents, are often detected containing a high content of dissolved organic dyes, which are usually hazardous to organisms [1,2] . At present, removal of organic dyes from wastewater is a serious challenge faced by human beings. To address this challenge, many technologies of organic dye degradation such as chemical oxidation, physical adsorption and biodegradation have been developed. However, these technologies still have some problems such as secondary pollution or unsatisfactory treatment. Lately, photocatalytic applied in organic pollutant removal has caused much attention due to the utilization of abundant solar energy without the need for additional chemical regents. Hence, many types of semiconductor photocatalysts such as TiO 2 [3–5] , ZnO [6] and BiPO 4 [7] were successfully prepared by a variety of methods. To date, TiO 2 is still the most widely investigated semiconductor photocatalytic material owning to high activity under UV irradiation. But UV light only accounts for no more than 4% of the solar spectrum, which limits its practical application for environmental remediation. To effectively harness abundant natural sunlight, many visible-light-driven photocatalysts such as BiVO 4 [8,9] , Bi 2 WO 6 [10] , BiOI http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Catalysis B: Environmental Elsevier

Synthesis and characterization of g-C 3 N 4 /Ag 3 VO 4 composites with significantly enhanced visible-light photocatalytic activity for triphenylmethane dye degradation

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Publisher
Elsevier
Copyright
Copyright © 2013 Elsevier B.V.
ISSN
0926-3373
D.O.I.
10.1016/j.apcatb.2013.08.008
Publisher site
See Article on Publisher Site

Abstract

1 Introduction</h5> Industrial wastewaters, especially such as tannery and textile processing effluents, are often detected containing a high content of dissolved organic dyes, which are usually hazardous to organisms [1,2] . At present, removal of organic dyes from wastewater is a serious challenge faced by human beings. To address this challenge, many technologies of organic dye degradation such as chemical oxidation, physical adsorption and biodegradation have been developed. However, these technologies still have some problems such as secondary pollution or unsatisfactory treatment. Lately, photocatalytic applied in organic pollutant removal has caused much attention due to the utilization of abundant solar energy without the need for additional chemical regents. Hence, many types of semiconductor photocatalysts such as TiO 2 [3–5] , ZnO [6] and BiPO 4 [7] were successfully prepared by a variety of methods. To date, TiO 2 is still the most widely investigated semiconductor photocatalytic material owning to high activity under UV irradiation. But UV light only accounts for no more than 4% of the solar spectrum, which limits its practical application for environmental remediation. To effectively harness abundant natural sunlight, many visible-light-driven photocatalysts such as BiVO 4 [8,9] , Bi 2 WO 6 [10] , BiOI

Journal

Applied Catalysis B: EnvironmentalElsevier

Published: Jan 1, 2014

References

  • Chem. Commun.
    Bi, Y.P.; Hu, H.Y.; Ouyang, S.X.; Lu, G.X.; Cao, J.Y.; Ye, J.H.
  • J. Phys. Chem. C
    Xiang, Q.J.; Yu, J.G.; Jaroniec, M.
  • Diamond Relat. Mater.
    Matsumoto, S.; Xie, E.Q.; Izumi, F.
  • Environ. Sci. Technol.
    Kim, J.; Lee, C.W.; Choi, W.

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