TY - JOUR
T1 - Facile preparation of ternary Ag2CO3/Ag/PANI composite nanorods with enhanced photoactivity and stability
AU - Chen, Fang
AU - Wu, Yadan
AU - Ning, Jiqiang
AU - Ren, Jiabin
AU - Zhang, Ziyang
AU - Zheng, Changcheng
AU - Zhong, Yijun
AU - Hu, Yong
N1 - Funding Information:
Financial support from the Natural Science Foundation of China (21671173, 61674166, 11504299), the Zhejiang Provincial Natural Science Foundation of China (LR14B010001), the Zhejiang Provincial Public Welfare Project (2016C31015), and the State Key Laboratory of Silicon Materials at Zhejiang University (2015-10) is gratefully acknowledged. J.Q.N. acknowledges the financial support from The Hundred Talents Program of Chinese Academy of Sciences, and Z.Y.Z. acknowledges the financial support from The Thousand Youth Talents Plan. And C.C.Z. acknowledges the partial support of an open project from State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology.
Publisher Copyright:
© 2017, Springer Science+Business Media New York.
PY - 2017/4/1
Y1 - 2017/4/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85008472983&partnerID=8YFLogxK
U2 - 10.1007/s10853-016-0697-7
DO - 10.1007/s10853-016-0697-7
M3 - Article
AN - SCOPUS:85008472983
SN - 0022-2461
VL - 52
SP - 4521
EP - 4531
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 8
ER -