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PhD Program (Material Science)
My project is based on the application of Gold nanoparticles to the photocatalytic
degradation of organic pollutants in aqueous solution. The photocatalysis process
is carried out when a semiconductor absorbs light and generates active species at
the surface that promotes the oxidation and mineralization of the organic compounds
present in the solution to CO2. Modified semiconductors with noble metal nanoparticles
have been of great importance to improve the photocatalytic efficiency of the process,
it can present several effects: to reduce the recombination effect hole-electron, to
displace the absorption of light to the visible region which makes possible the use of
these materials under solar energy, and also it can modify the properties at the surface
of the photocatalyst.
It is known that the deposition method of these particles leads to different sizes
and contact structure between the particle and the substrate, so we are studying different
types of synthesis in order to evaluate their activity based on the size and structure.
We are working on the physical characterization of these materials and evaluating
their photocatalytic activity.
send a mail to: Socorro Oros
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