Tuning Ag morphology on TiO2 nanotube arrays by pulse reverse current deposition for enhanced plasmon-driven visible-light response
Journal article, 2017
TiO 2 nanotube arrays (NTAs) decorated with controllable Ag particles were prepared by pulse reverse current deposition in AgNO 3 /NaNO 3 aqueous solution, aiming to improve the photoelectrochemical properties of TiO 2 NTA electrode in visible-light region. By tuning the pulse current density and deposited charge density, a controllable synthesis of Ag structures was achieved. Excellent photocurrent responses of TiO 2 NTAs in UV and visible light regions were achieved by depositing Ag nanorods and nanoparticles, which was attributed to highly efficient charge separation by the Schottky junction at the Ag/TiO 2 interface and localized surface plasmon resonance effect of Ag nanostructures. Graphical Abstract: [Figure not available: see fulltext.].
Electrodeposition
Photocurrent
Titania nanotube arrays
Silver particles
Author
Kunpeng Xie
Competence Centre for Catalysis (KCK)
Chalmers, Chemistry and Chemical Engineering, Chemical Technology
Chen Gong
State Key Laboratory of Physical Chemistry of Solid Surfaces (Xiamen University)
M. Wang
State Key Laboratory of Physical Chemistry of Solid Surfaces (Xiamen University)
Hong Kong Polytechnic University
L. Sun
State Key Laboratory of Physical Chemistry of Solid Surfaces (Xiamen University)
C. Lin
State Key Laboratory of Physical Chemistry of Solid Surfaces (Xiamen University)
Journal of Applied Electrochemistry
0021-891X (ISSN) 1572-8838 (eISSN)
Vol. 47 8 959-968DOI
10.1007/s10800-017-1093-y