溶剂热法合成用于高效光催化燃油脱氮的TiO<sub>2</sub>@MIL-101(Cr)复合材料

溶剂热法合成用于高效光催化燃油脱氮的TiO₂@MIL-101(Cr)复合材料

摘要: 溶剂热合成技术是一种有效合成复合材料的技术。在本研究中，通过溶剂热法制备了不同比例复合的TiO₂@MIL-101(Cr)复合材料。并利用这些材料进行可见光光催化燃油脱氮（吡啶）。对所得催化剂采用XRD、FT-IR、SEM、TEM、BET和DRS进行表征。通过活性实验结果可以得到，20%TiO₂@MIL-101(Cr)具有良好的催化活性，在可见光光照4 h后，对吡啶的脱除率高达70%。最后，通过对HPLC-MS数据分析，得到一个光催化燃油脱氮的可能机理。

Abstract: Solvothermal synthesis technique is an effective method to create composite materials. In this paper, a series of TiO₂@MIL-101(Cr) were prepared by the solvothermal method for photocatalytic denitrification of pyridine in fuel under visible light irradiation. The products were characterized by XRD, FT-IR, SEM, TEM, BET, DRS and ESR. The result shows that 20%TiO₂@MIL-101(Cr) has high catalytic activity, the pyridine removal efficiency reaches values as high as 70% after irradiation for 240 min. Finally, we obtained the possible mechanism of photocatalytic denitrification according to the HPLC-MS spectrometry results analysis.