Plasmonic Silver Nanoparticle-Impregnated Nanocomposite BiVO4 Photoanode for Plasmon-Enhanced Photocatalytic Water Splitting

Title
Plasmonic Silver Nanoparticle-Impregnated Nanocomposite BiVO4 Photoanode for Plasmon-Enhanced Photocatalytic Water Splitting
Authors
이상현문병준Sang Yun JeongHye-Min ShinYong-Ryun JoYeong Jae KimSeungkyu KimWon-June LeeGil Ju LeeJaesun SongSehun SeoHyunji AnYoung Min SongBong-Joong KimMyung-Han YoonSanghan Lee
Keywords
Plasmonic; Silver nanoparticles; BiVO4; Photocatalytic water splitting
Issue Date
2018-04
Publisher
The Journal of Physical Chemistry C
Citation
VOL 122, NO 13-7093
Abstract
Herein, we developed a fully solution-deposited nanocomposite photoanode based on silver nanoparticle (NP)-impregnated bismuth vanadate (BiVO4) films. The synthesized Ag NPs exhibit diameters of few nanometers and uniform matrix dispersion, which were confirmed by highresolution transmission electron microscopy. The photoanode composed of the Ag NP-incorporated nanocomposite BiVO4 showed a remarkable enhancement in both low potential and the saturated photocatalytic current densities in comparison with the pristine BiVO4 film. The observed experimental results are attributed to the improved carrier generation and enhanced charge separation by the localized surface plasmon resonancemediated effect as suggested by electrochemical impedance spectroscopy and a numerical simulation.
URI
http://pubs.kist.re.kr/handle/201004/67543
ISSN
1932-7447
Appears in Collections:
KIST Publication > Article
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