284325 UV and Visible Light Photocatalytic Degradation of Glucose by ZrO2 Doped TiO2/ZnO Nanomaterial

Wednesday, October 31, 2012: 2:10 PM
305 (Convention Center )
Evan Sellers, Rajneesh Jaswal, Rajesh Shende and Anuradha Shende, Chemical and Biological Engineering Department, South Dakota School of Mines and Technology, Rapid City, SD

UV and visible excitation  ZrO2 doped TiO2/ZnO photocatalysts were made by surface template sol-gel approach. Various concentrations of zirconium ranging from 0.5% to 10% were  doped with TiO2 /ZnO . The materials  were each  calcined at  3  different temperatures of 300 oC, 600 oC and 1000 oC. The synthesized materials were characterized by X-ray diffraction (XRD) , BET surface area ,transmission electron microscopy (TEM)  and UV-Visible diffuse reflectance spectroscopy. The as-synthesized material were  coated with 1% platinum using the  chloroplatinic acid method The  photocatalytic oxidation of glucose by  platinum coated zirconium doped and undoped TiO2/ZnO   was studied under UV  and visible irradiation  The   degradation products   resulting from photocatlytic water splitting and glucose  reforming    namely hydrogen, and carbon dioxide   were monitored by gas chromatography.   The initial degradation rates for glucose with these  photocatlytic materials  were calculated. Findings on  correlation between concentration  of doped  Zirconium and efficiency of   photocatalysis  will be presented.

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See more of this Group/Topical: 2012 International Congress on Energy (ICE)