silver halide/silver iodide@silver composite with excellent visible light photocatalytic activity for methyl orange degradation

silver halide/silver iodide@silver composite with excellent visible light photocatalytic activity... 1 Introduction</h5> Semiconductor photocatalysis has been considered to be a “green” technology for completely eliminating most of the environmental contaminants [1–4] . Among various semiconductor materials, TiO 2 has been extensively used to decompose organic compounds [5,6] . Unfortunately, due to its wide band gap (3.2 eV for anatase), TiO 2 cannot use visible light to generate the electron–hole pairs, thus restricting its utilization of solar energy. Therefore, the exploitation of visible light-driven photocatalysts has become an important topic of photocatalytic researches [7,8] .</P>Noble metal nanoparticles (NPs), such as Au, Ag, Pt, and Cu, exhibit strong UV–Vis absorption because of their surface plasmon resonance (SPR) [9,10] . As a result, plasmonic NPs can serve as an alternative type of sensitizers to enhance the visible light absorption of photocatalysts without the trouble of degradation like organic sensitizers [11,12] . Since the pioneering works of Huang et al. [13] , plasmonic photocatalysts based on silver halide (AgX) have drawn extensive interests of researchers owing to their superior photocatalytic performance in degradation of organic dyes [13] , inactivation of bacteria [7,14] , and reduction of CO 2 [15] , etc. Recently, many researches proved that the Ag/AgX composites with other semiconductors http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Colloid and Interface Science Elsevier

silver halide/silver iodide@silver composite with excellent visible light photocatalytic activity for methyl orange degradation

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Publisher
Elsevier
Copyright
Copyright © 2013 Elsevier Inc.
ISSN
0021-9797
eISSN
1095-7103
D.O.I.
10.1016/j.jcis.2013.05.009
Publisher site
See Article on Publisher Site

Abstract

1 Introduction</h5> Semiconductor photocatalysis has been considered to be a “green” technology for completely eliminating most of the environmental contaminants [1–4] . Among various semiconductor materials, TiO 2 has been extensively used to decompose organic compounds [5,6] . Unfortunately, due to its wide band gap (3.2 eV for anatase), TiO 2 cannot use visible light to generate the electron–hole pairs, thus restricting its utilization of solar energy. Therefore, the exploitation of visible light-driven photocatalysts has become an important topic of photocatalytic researches [7,8] .</P>Noble metal nanoparticles (NPs), such as Au, Ag, Pt, and Cu, exhibit strong UV–Vis absorption because of their surface plasmon resonance (SPR) [9,10] . As a result, plasmonic NPs can serve as an alternative type of sensitizers to enhance the visible light absorption of photocatalysts without the trouble of degradation like organic sensitizers [11,12] . Since the pioneering works of Huang et al. [13] , plasmonic photocatalysts based on silver halide (AgX) have drawn extensive interests of researchers owing to their superior photocatalytic performance in degradation of organic dyes [13] , inactivation of bacteria [7,14] , and reduction of CO 2 [15] , etc. Recently, many researches proved that the Ag/AgX composites with other semiconductors

Journal

Journal of Colloid and Interface ScienceElsevier

Published: Sep 1, 2013

References

  • Chem. Rev.
    Hoffmann, M.R.; Martin, S.T.; Choi, W.; Bahneman, D.W.
  • Chem. Commun.
    Jiang, L.; Wang, L.Z.; Zhang, J.L.
  • Chem. Commun.
    Cheng, H.F.; Huang, B.B.; Wang, P.; Wang, Z.Y.; Lou, Z.Z.; Wang, J.P.; Qin, X.Y.; Zhang, X.Y.; Dai, Y.
  • J. Phys. Chem. C
    Dong, R.F.; Tian, B.Z.; Zeng, C.Y.; Li, T.Y.; Wang, T.T.; Zhang, J.L.

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