以氧化石墨（GO）、石墨相氮化碳（g-C₃N₄）和P25TiO₂为原料，采用碱性水热法制备了不同g-C₃N₄掺杂量的TiO₂纳米管/石墨烯（TiO₂NT/g-C₃N₄/RGO）三元复合材料。利用XRD、FT-IR、TEM、XPS等表征手段对其物相结构、微观形貌进行分析，并通过微波辅助加热的方式将其应用于催化果糖脱水制备5-羟甲基糠醛（5-HMF）。结果表明，当g-C₃N₄掺杂量为2%时，利用TiO₂纳米管、g-C₃N₄和石墨烯的协同作用，复合材料催化果糖降解性能最好，此时，5-HMF的产率达67.2%。

TiO₂ nanotubes/graphene ternary composites with different doping amounts of graphite phase carbon nitride are prepared through alkaline hydrothermal method by using graphite oxide (GO),graphite phase carbon nitride (g-C₃N₄) and P25TiO₂ as raw materials.The characterization methods such as XRD,FT-IR,TEM,XPS are used to analyze the phase structure and micromorphology of samples.The prepared composites are applied to catalyze the dehydration of fructose to make 5-hydroxymethylfurfural (5-HMF) by means of microwave assisted heating method.The results show that the yield of 5-HMF can reach 67.2% when the doping amount of g-C₃N₄ is 2%,and the synergistic effect among TiO₂ nanotubes,g-C₃N₄ and graphene is utilized,in which the composite has the best catalytic performance for fructose degradation.

蒋梦(1993-),女,硕士研究生,研究方向为催化生物质资源转化,1076202206@qq.com