Abstracts Book - IMRC 2018

• SF3-O025
DOPED TiO2 AS PHOTOCATALYST IN REDUCTION OF
BENZOPHENONE UNDER VISIBLE LIGHT IRRADIATING
Luis Enrique Cortés de Jesús 1 , Roberto Portillo y Reyes 1 , Miguel Angel Hernandez 2 , Enrique
Sánchez Mora 3
1 Benemerita Universidad Autonoma de Puebla, Faculty of Chemical Science, Mexico.
2 Benemerita Universidad Autonoma de Puebla, Research in Zeolites, Mexico. 3 Benemerita
Universidad Autonoma de Puebla, Physics Institute, Mexico.
Titanium Oxide has an extended use as photocatalyst in advanced oxidation
processes, such as many authors have reported previously. The same charge
carriers produced when TiO 2 is radiated with UV light and that on the surface of
the material generate free radicals that destroy chemical bonds in the
mineralization of organic molecules, can be used also to form new bonds in
certain organic molecules through reduction processes. In this work we report
some chemical conditions needed to achieve the reduction of benzophenone
under visible light using TiO 2 pure and doped with sulphur, nitrogen and iodine.
Doping modifies the band gap structure of the TiO 2 allowing for photocatalytic
activity with light over 400 nm. The characterization of doped titanium oxides
carried out by DRX, DRS and nitrogen adsorption techniques is presented, as
well as the kinetic curves of benzophenone reduction using isopropanol as
hydrogen donor.
Keywords: Photocatalyst, Characterization, Benzophenone
Presenting authors email: enrique.cortesde@alumno.buap.mx