【摘要】 采用溶剂热法,以均苯三甲酸（H₃BTC）为有机配体与硝酸铜进行反应合成了Cu₂（BTC）₃。通过XRD和SEM等方法对Cu₂（BTC）₃进行了表征。实验结果表明,Cu₂（BTC）₃是一种典型的金属有机骨架（MOFs）材料,呈现规整的八面体晶状结构,晶粒大小为2～20μm。相同条件下Cu₂（BTC）₃对CO₂的吸附量高于活性炭和活性碳纤维,且随着吸附压力的升高吸附量明显增大,随着吸附温度的降低吸附量也增大。在0.4 MPa、25℃的条件下,用Cu₂（BTC）₃作吸附剂可以很好地分离CO₂体积分数为5%和20%的CO₂-甲烷混合气体,且对CO₂含量低的混合气体分离效果更好。更多还原

【Abstract】 Cu₂（BTC）₃ was prepared from organic ligand benzenetricarboxylate（H₃BTC） and Cu（NO₃）₂ by solvothermal method.The characterization results by XRD and SEM show that Cu,（BTC）,is a kind of typical metal-organic frameworks（MOFs） material with a regular octahedral crystal structure and 2-20 urn of crystal grain size.Under the same condition,the adsorption capacity of Cu₂（BTC）₃ to CO₂ is higher than those of activated carbon and activated carbon fiber,and increases with the increasing of adsorption pressure or the decreasing of adsorption temperature.Under the conditions of 0.4 MPa and 25℃,the CO₂-methane mixed gas with 5%or 20%of CO₂ volume fraction can be separated effectively using Cu₂（BTC）₃ as adsorbent,and the lower the CO₂ content is,the better the separation effect is.更多还原