采用水热合成法制备了金属有机框架材料MIL-53（Fe），并通过X射线衍射、扫描电镜和热重分析验证其结构特征。利用固定床实验装置和气相色谱测定MIL-53（Fe）在温度相对较低（60℃）的条件下对COS和CS₂的脱除情况，并探讨了MIL-53（Fe）不同水热合成温度对COS和CS₂脱除效果的影响。结果表明，水热合成温度为150℃时脱除效果最好，COS脱除效率最高为92.64%，CS₂脱除效率最高为100%；BET结果表明，水热合成温度过高或过低都会影响材料的热稳定性和有机框架的形成，造成比表面积和总孔容下降，从而影响脱硫效率。

As a new type of porous crystalline material,metal-organic framework (MOF) has attracted great interest as a promising candidate for sustainable energy and environmental restoration.MIL-53 (Fe),a kind of MOF material,is prepared by hydrothermal synthesis,and its structural characteristics are verified by X-ray diffraction (XRD),scanning electron microscope (SEM),and thermal gravimetric analyzer (TG).A fixed-bed experimental device and a gas chromatography are used to determine the removal of COS and CS₂ by MIL-53 (Fe) at a relatively low temperature of 60℃.Moreover,the effects of different hydrothermal synthesis temperatures for MIL-53 (Fe) on the removal of COS and CS₂ are also researched.Results show that MIL-53 (Fe) synthesized at a hydrothermal synthesis temperature of 150℃ has the best removal effect against COS and CS₂.Over which,the highest removal efficiency of COS can reach 92.64%,and that of CS₂ can reach 100%.BET result shows that over-high or over-low hydrothermal synthesis temperature can affect the thermal stability of the material and the formation of organic framework,resulting in a decrease in specific surface area and total pore volume,which influences the desulfurization efficiency.

郭清霞(1993-),女,硕士生,研究方向为催化材料的制备及其在脱硫中的应用,1007046398@qq.com