Photocatalytic Properties of TiO2 Supported on Pd-modified Carbon Fibers

摘要

Pd-modified carbon fibers (CF) are obtained by a facile oxidation-reduction method and then dip-coated in a sol-gel of titanium dioxide (TiO2) to form supported TiO2/Pd-CF photocatalysts. The morphology of the Pd-modified CFs is characterized by field emission scanning electron microscopy. X-ray diffraction is used to investigate the crystal structures of the TiO2 photocatalyst. Acid orange Ⅱ is used as a model contaminant to evaluate the photocatalytic properties of the composites under UV irradiation. TiO2/Pd-CF exhibits higher catalytic activity than TiO2/CF towards the degradation of acid orange Ⅱ.