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.
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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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Da Dalt, S., Alves, A.K., Bergmann, C.P. (2013). CNTs/TiO2 Composites. In: Avellaneda, C. (eds) NanoCarbon 2011. Carbon Nanostructures, vol 3. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31960-0_6
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