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Published in: Journal of Materials Science 8/2017

06-01-2017 | Original Paper

Facile preparation of ternary Ag2CO3/Ag/PANI composite nanorods with enhanced photoactivity and stability

Authors: Fang Chen, Yadan Wu, Jiqiang Ning, Jiabin Ren, Ziyang Zhang, Changcheng Zheng, Yijun Zhong, Yong Hu

Published in: Journal of Materials Science | Issue 8/2017

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Abstract

One-dimensional ternary nanostructures, Ag2CO3 nanorod cores coated with an intermediate layer of Ag nanoparticles (NPs) and a sheath of conducting polymer polyaniline (PANI), Ag2CO3/Ag/PANI composite nanorods (CNRs), were successfully prepared via a facile two-step method. Ag NPs were first uniformly anchored onto the Ag2CO3 nanorods to form binary Ag2CO3/Ag CNRs with an in situ visible-light-induced reduction strategy, and then the Ag2CO3/Ag CNRs were coated with PANI of different contents through a simple chemisorption approach. The as-obtained hybrids exhibit significantly enhanced photoelectrochemical current response and photoactivity in degrading methyl orange under visible-light illumination (λ > 420 nm). The improved photoactivity was found to be related to the intermediate Ag between Ag2CO3 and PANI which facilitates the separation efficiency of photogenerated carriers, and an optimal weight percent of 2.0% PANI was observed. The origin of enhanced photoactivity was further investigated by a radical-trapping test, and a Z-scheme mechanism was proposed to explain the charge separation behaviors.

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Metadata
Title
Facile preparation of ternary Ag2CO3/Ag/PANI composite nanorods with enhanced photoactivity and stability
Authors
Fang Chen
Yadan Wu
Jiqiang Ning
Jiabin Ren
Ziyang Zhang
Changcheng Zheng
Yijun Zhong
Yong Hu
Publication date
06-01-2017
Publisher
Springer US
Published in
Journal of Materials Science / Issue 8/2017
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-016-0697-7

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