Zeolitic imidazolate frameworks ZIF-8 and ZIF-6 7 were synthesized at room temperature.The two samples were characted by XRD,SEM and BET.The single component adsorption equilibrium isotherms for n-hexane、2-methylpentane on the two ZIF materials were measured.The results show that the static adsorbed amount of n-hexane and 2-methylpentane on ZIF-8 is higher than that on ZIF-67.The break-through curves of n-hexane/2-methylpentane mixture absorbed on ZIF-8 were obtained by continuous dy-namic adsorption experiments.The results show that ZIF-8 exhibits a higher selectivity and adsorption ca-pacity for n-hexane.At the total pressure of 1.0MPa and feed concentration ratio of 1∶1,the dynamic ad-sorption capacity of ZIF-8 for n-C6 is 0.40g·g-1 ,the separation factor is 5.71.%常温法合成了沸石咪唑酯骨架材料ZIF-8和ZIF-67,用 XRD、SEM和BET测试手段对所合成的样品进行了表征。测定了正己烷、2-甲基戊烷单组份分别在 ZIF-8和 ZIF-67吸附材料上的吸附等温线,结果发现各组份在ZIF-8上的静态饱和吸附量均高于ZIF-67；通过固定床动态吸附穿透实验测定了正己烷/二甲基戊烷混合液在 ZIF-8上的连续流出穿透曲线,结果表明,ZIF-8对正己烷具有明显的吸附选择性,总压1.0 MPa、进料浓度比1∶1时ZIF-8对正己烷的动态吸附量为0.40g·g-1、正己烷/二甲基戊烷分离系数为5.71。
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