Photocatalytic Oxidation of Methanol Using Titanium Dioxide/Single-Walled Carbon Nanotube Composite | Zendy

Chonlada Dechakiatkrai | Zendy; J. Chen | Zendy; Carol Lynam | Zendy; Sukon Phanichphant | Zendy; Gordon G. Wallace | Zendy

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Photocatalytic Oxidation of Methanol Using Titanium Dioxide/Single-Walled Carbon Nanotube Composite

Author(s) -

Chonlada Dechakiatkrai,

J. Chen,

Carol Lynam,

Sukon Phanichphant,

Gordon G. Wallace

Publication year - 2007

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/1.2709498

Subject(s) - photocatalysis , titanium dioxide , carbon nanotube , raman spectroscopy , materials science , composite number , cyclic voltammetry , scanning electron microscope , chemical engineering , electrochemistry , sulfuric acid , zeta potential , electrolyte , methanol , composite material , nanotechnology , chemistry , electrode , catalysis , nanoparticle , organic chemistry , metallurgy , optics , engineering , physics

Titanium dioxide/single-walled carbon nanotube (TiO 2 /SWNT) composites were prepared for photocatalytic applications. The composites were characterized using UV-visible and Raman spectroscopy, zeta-potential measurements, cyclic voltammetry coupled with a photoreactor, scanning electron microscopy, and transmission electron microscopy coupled with energy dispersive X-ray spectroscopy. The photocatalytic activity of TiO 2 and the TiO 2 /SWNT composite was investigated using the photo-oxidation of methanol in sulfuric acid as supporting electrolyte. The results indicate that the TiO 2 /SWNT composite enhances the photocatalytic activity compared to TiO 2 alone. Electrochemical studies of the TiO 2 /SWNT composite were also carried out in various supporting electrolytes and the presence of SWNTs was shown to increase the current achieved in voltammetric measurements.

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