Abstract
Fuel components were prepared in this study using rubber seed oil via photothermal catalysis under energy-saving conditions. Modified TiO2 was employed as the catalyst in the catalytic reactions. X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), X-ray fluorescence (XRF), hydrogen temperature-programmed desorbtion (H2-TPD), CO pulse chemisorption analysis, and UV–vis spectroscopy were employed to examine the microstructure and chemical properties of the modified catalysts. The loading of the catalysts with different active metals considerably reduced the bandgap, leading to enhancements in the absorption of visible light. Temperature, H2 pressure, and reaction time were optimised for the photothermal catalytic reaction via the single factor test. The Pt/TiO2 catalyst realised the highest conversion and selectivity among the tested samples at 120 °C and a H2 pressure of 0.4 MPa for 12 h. Additionally, photo-decarboxylation was confirmed via probing with oleic acid to be the predominant process in the catalytic reaction. This research provides an energy-saving strategy for the preparation of biofuels.
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