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, Chemical Reaction Engineering

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 8 959-968

DOI

10.1007/s10800-017-1093-y

More information

Created

10/8/2017