Photocatalytic Degradation of Bio-oil's Oligomers by Pd/TiO2

Pd/TiO 2 was prepared for photocatalytic degradation of bio-oil's oligomers. The catalyst was characterized by X-ray photoelectron spectra, photoluminescence spectra, UV–Vis diffuse reflectance spectra and transmission electron microscopy. Quantitative results were obtained from gas chromatography/mass spectrometry. The results demonstrated that the main products were esters, such as methyl hexadecanoate, dibutyl phthalate and bis(2-ethylhexyl)phthalate. The effect of initial concentration of oligomers, temperature and mass of catalyst were also researched in our work.