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Advanced Photocatalysis with Anatase Nano-coated Multi-walled Carbon Nanotubes

Published online by Cambridge University Press:  15 February 2011

Georgios Pyrgiotakis ,
Sung-Hwan Lee  and
Wolfgang Sigmund
Georgios Pyrgiotakis
Affiliation:
Materials Science and Engineering, University of Florida RHN 225, Gainesville, FL, 326011, USA
Sung-Hwan Lee
Affiliation:
Materials Science and Engineering, University of Florida RHN 225, Gainesville, FL, 326011, USA
Wolfgang Sigmund
Affiliation:
Materials Science and Engineering, University of Florida RHN 225, Gainesville, FL, 326011, USA
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Abstract

A novel approach is presented to synergistically enhance photocatalytic activity in a nanocomposite using the high aspect ratio of carbon nanotube (CNT) and their unique electrical properties. Composite nanoparticles were synthesized with sol-gel nano-coating on multi-walled carbon nanotubes (MWNTs). The nanostructure was characterized using SEM, TEM, XRD, Raman, FTIR and UV-VIS spectroscopies. Photocatalytic efficiencies of commercial photocatalysts (Degussa P25) and TiO2 nano-coated MWNTs were evaluated by Azo dye degradation tests. Superior photocatalytic activity was observed for the nanocomposite with UV-A and with visible light only irradiation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 876: Symposium A – Nanoporous and Nanostructured Materials for Catalysis, Sensor and Gas Separation Applications , 2005 , R5.7
Copyright
Copyright © Materials Research Society 2005

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