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CNTs/TiO2 Composites

  • Silvana Da DaltEmail author
  • Annelise Kopp Alves
  • Carlos Pérez Bergmann
Chapter
Part of the Carbon Nanostructures book series (CARBON, volume 3)

Abstract

Titanium dioxide (TiO2) is a semiconductor material that is widely used in many different areas, such as gas sensors, air purification, catalysis, solar to electric energy conversion, photoelectrochemical systems and photocatalyst for degrading a wide range of organic pollutants because of its nontoxicity, photochemical stability, and low cost. There are reports that show that the heterojunction of TiO2 and carbon nanotubes (CNTs) improves the efficiency of the photocatalytic activity, mainly because the recombination of the photogenerated electron–hole pairs becomes more difficult in the presence of nanotubes. Multi-wall carbon nanotubes/TiO2 (MWCNT/TiO2) composite materials have been attracting attention in relation to their use in the treatment of contaminated water and air by heterogeneous photocatalysis, hydrogen evolution, CO2 photo-reduction, and dye sensitized solar cells. Nevertheless, functionalization routes to aggregate these materials and characterization methods need to be studied; since they have direct influence on properties and potential applications.

Keywords

Carbon nanotubes Photocatalysis Titanium oxide 

Abbreviations

AFM

Atomic Force Microscopy

BET

Brunauer–Emmett–Teller

CNTs

Carbon Nanotubes

EDX

Energy Dispersive X Ray

FESEM

Field Emission Scanning Electron Microscopy

FT-IR

Fourier Transformer Infrared

HPO

Heterogeneous Photocatalytic Oxidation

MB

Methylene Blue

MO

Methyl Orange

MWCNT

Multi-Walled Carbon Nanotubes

SWCNT

Single-Walled Carbon Nanotubes

SEM

Scanning Electron Microscopy

TEM

Transmission Electron Microscopy

TGA

Thermo Gravimetric Analysis

UV

Ultraviolet

XRD

X Ray Diffraction

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Silvana Da Dalt
    • 1
    • 2
    Email author
  • Annelise Kopp Alves
    • 2
  • Carlos Pérez Bergmann
    • 2
  1. 1.Av. OsvaldoPorto AlegreBrazil
  2. 2.Escola de EngenhariaUniversidade Federal do Rio Grande do SulPorto AlegreBrazil

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