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Chemical Doping of Metal Oxide Nanomaterials (Paperback)
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Chemical Doping of Metal Oxide Nanomaterials (Paperback)
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Photocatalysis is considered by many as the most promising solution
for energy and environment problems. Among all the photocatalysts
available, titanium dioxide remains one of the most studied for
decades. Reducing its bandgap via doping is crucial to harvest
visible-light, which accounts for 48% of the total solar energy. In
addition, it is very important to keep the particle size small to
avoid recombination of the photo-generated electrons and holes. In
this book, nano-scaled metal and / or non-metal elements have been
used as dopants to modify the electronic structure of TiO2. X-ray
diffraction patterns (XRD), Raman spectroscopy, UV-Vis diffuse
reflectance spectroscopy (UV-DRS), Fourier transform infrared
spectroscopy (FTIR), scanning electron microscopy (SEM),
transmission electron microscopy (TEM) and X-ray photoelectron
spectroscopy (XPS) have been used to obtain detailed information of
the crystal structure, light-absorbing property, organic remains,
particle appearance, size distribution and elemental compositions,
respectively. Preliminary data indicates that the electronic
structure of TiO2 has been effectively reduced to render
visible-light reactivity.
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