Journal
APPLIED SURFACE SCIENCE
Volume 277, Issue -, Pages 105-110Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2013.04.010
Keywords
Ag nanoparticle; Electrodeposition; CO2 photoreduction; TiO2 nanorods
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Funding
- Key Science and Technology Innovation Team of Zhejiang Province [2010R50013]
- University of Nottingham
- Zhejiang Collaborative Fund
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We employed the double-potentiostatic methodology to electrodeposit Ag nanoparticles on oriented single-crystalline rutile TiO2 nanorods synthesized by hydrothermal method. The synthesized composites were used as the photocatalyst to reduce CO2 to CH4 under UV irradiation, and tested by SEM, XRD, TEM, XPS, UV-vis and photoluminescence. Deposition with Ag nanoparticles was observed to enhance the photocatalytic activity (approximate to 1.5-2.64 mu mol (g(catal) h)(-1)) up to 5 times with respect to undecorated TiO2 nanorods (approximate to 0.5 mu mol (g(catal) h)(-1)). The increase in the CH4 yield was correlated with the surface morphology and structure of TiO2 nanorods. (c) 2013 Elsevier B.V. All rights reserved.
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