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Title: Enhanced photoelectrochemical and photocatalytic activity in visible-light-driven Ag/BiVO{sub 4} inverse opals

Abstract

BiVO{sub 4} photonic crystal inverse opals (io-BiVO{sub 4}) with highly dispersed Ag nanoparticles (NPs) were prepared by the nanosphere lithography method combining the pulsed current deposition method. The incorporation of the Ag NPs can significantly improve the photoelectrochemical and photocatalytic activity of BiVO{sub 4} inverse opals in the visible light region. The photocurrent density of the Ag/io-BiVO{sub 4} sample is 4.7 times higher than that of the disordered sample without the Ag NPs, while the enhancement factor of the corresponding kinetic constant in photocatalytic experiment is approximately 3. The improved photoelectrochemical and photocatalytic activity is benefited from two reasons: one is the enhanced light harvesting owing to the coupling between the slow light and localized surface plasmon resonance effect; the other is the efficient separation of charge carriers due to the Schottky barriers.

Authors:
;  [1]; ;  [2]
  1. College of Physics, Optoelectronics and Energy and Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006 (China)
  2. Institute of Physics and IMN MacroNano (ZIK), Ilmenau University of Technology, Ilmenau 98693 (Germany)
Publication Date:
OSTI Identifier:
22591771
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 108; Journal Issue: 9; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CHARGE CARRIERS; COUPLING; CRYSTALS; DEPOSITION; NANOPARTICLES; OPALS; PHOTOCATALYSIS; PHOTOCURRENTS; PLASMONS; PULSES; RESONANCE; SURFACES; VISIBLE RADIATION

Citation Formats

Fang, Liang, Nan, Feng, Yang, Ying, and Cao, Dawei. Enhanced photoelectrochemical and photocatalytic activity in visible-light-driven Ag/BiVO{sub 4} inverse opals. United States: N. p., 2016. Web. doi:10.1063/1.4943181.
Fang, Liang, Nan, Feng, Yang, Ying, & Cao, Dawei. Enhanced photoelectrochemical and photocatalytic activity in visible-light-driven Ag/BiVO{sub 4} inverse opals. United States. https://doi.org/10.1063/1.4943181
Fang, Liang, Nan, Feng, Yang, Ying, and Cao, Dawei. 2016. "Enhanced photoelectrochemical and photocatalytic activity in visible-light-driven Ag/BiVO{sub 4} inverse opals". United States. https://doi.org/10.1063/1.4943181.
@article{osti_22591771,
title = {Enhanced photoelectrochemical and photocatalytic activity in visible-light-driven Ag/BiVO{sub 4} inverse opals},
author = {Fang, Liang and Nan, Feng and Yang, Ying and Cao, Dawei},
abstractNote = {BiVO{sub 4} photonic crystal inverse opals (io-BiVO{sub 4}) with highly dispersed Ag nanoparticles (NPs) were prepared by the nanosphere lithography method combining the pulsed current deposition method. The incorporation of the Ag NPs can significantly improve the photoelectrochemical and photocatalytic activity of BiVO{sub 4} inverse opals in the visible light region. The photocurrent density of the Ag/io-BiVO{sub 4} sample is 4.7 times higher than that of the disordered sample without the Ag NPs, while the enhancement factor of the corresponding kinetic constant in photocatalytic experiment is approximately 3. The improved photoelectrochemical and photocatalytic activity is benefited from two reasons: one is the enhanced light harvesting owing to the coupling between the slow light and localized surface plasmon resonance effect; the other is the efficient separation of charge carriers due to the Schottky barriers.},
doi = {10.1063/1.4943181},
url = {https://www.osti.gov/biblio/22591771}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 9,
volume = 108,
place = {United States},
year = {Mon Feb 29 00:00:00 EST 2016},
month = {Mon Feb 29 00:00:00 EST 2016}
}