Plasmonic TiO 2 /AgBr/Ag ternary composite nanosphere with heterojunction structure for advanced visible light photocatalyst

Plasmonic TiO 2 /AgBr/Ag ternary composite nanosphere with heterojunction structure for advanced... 1 Introduction</h5> In recent years, semiconductor based on photocatalytic oxidation technique has attracted extensive attention due to efficient ways of practical applications in removing organic hazardous pollutants and water splitting [1–5] . Among the well-known semiconductor materials, nanostructured titanium dioxide (TiO 2 ) has been widely used for its outstanding properties, such as low cost, high photocatalytic performance, excellent stability and innocuousness [6–10] . However, pristine TiO 2 is a wide bandgap semiconductor (3.0–3.2 eV) [11,12] . It can only be irradiated by ultraviolet (UV) light, but the energy of UV light occupies a very small percentage (about 4%) of total solar energy. Besides, high electrons ( e − ) and holes ( h + ) recombination in TiO 2 material and low photocatalytic efficiency are also important factors that seriously reduce photocatalytical performance of TiO 2 .</P>To solve above-mentioned problems, great efforts were put on making the composition and turning nanostructure of TiO 2 to better its practical photocatalytical uses, such as broading the visible light absorption region of TiO 2 . Heteroatoms, such as B [13] , N [14] , Er [15] , Sn [16] , Zr [17] , Cr [18] , C [19] , Nb http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Plasmonic TiO 2 /AgBr/Ag ternary composite nanosphere with heterojunction structure for advanced visible light photocatalyst

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Publisher
Elsevier
Copyright
Copyright © 2014 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2014.06.183
Publisher site
See Article on Publisher Site

Abstract

1 Introduction</h5> In recent years, semiconductor based on photocatalytic oxidation technique has attracted extensive attention due to efficient ways of practical applications in removing organic hazardous pollutants and water splitting [1–5] . Among the well-known semiconductor materials, nanostructured titanium dioxide (TiO 2 ) has been widely used for its outstanding properties, such as low cost, high photocatalytic performance, excellent stability and innocuousness [6–10] . However, pristine TiO 2 is a wide bandgap semiconductor (3.0–3.2 eV) [11,12] . It can only be irradiated by ultraviolet (UV) light, but the energy of UV light occupies a very small percentage (about 4%) of total solar energy. Besides, high electrons ( e − ) and holes ( h + ) recombination in TiO 2 material and low photocatalytic efficiency are also important factors that seriously reduce photocatalytical performance of TiO 2 .</P>To solve above-mentioned problems, great efforts were put on making the composition and turning nanostructure of TiO 2 to better its practical photocatalytical uses, such as broading the visible light absorption region of TiO 2 . Heteroatoms, such as B [13] , N [14] , Er [15] , Sn [16] , Zr [17] , Cr [18] , C [19] , Nb

Journal

Applied Surface ScienceElsevier

Published: Sep 30, 2014

References

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  • Dalton Trans.
    Dai, K.; Lu, L.H.; Dong, J.; Ji, Z.Y.; Zhu, G.P.; Liu, Q.Z.; Liu, Z.L.; Zhang, Y.X.; Li, D.P.; Liang, C.H.
  • Adv. Mater.
    Barborini, E.; Conti, A.M.; Kholmanov, I.; Piseri, P.; Podestà, A.; Milani, P.; Cepek, C.; Sakho, O.; Macovez, R.; Sancrotti, M.
  • J. Phys. Chem. C
    Zhang, X.; Zhang, L.Z.; Xie, T.F.; Wang, D.J.
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