【摘要】 化石燃料燃烧排放的CO₂造成温室效应日趋严重，开发具有对CO₂高吸附性能的吸附剂至关重要.而金属-有机框架材料（MOFs）和氧化石墨烯（GO）作为新型吸附剂，仍存在对CO₂吸附性能低的问题.采用溶剂热法制备ZIF-8@GO材料，利用XRD、SEM、BET等表征手段，研究了ZIF-8@GO材料的微观结构及其对CO₂吸附性能.研究表明：ZIF-8@GO保持了ZIF-8的晶型结构，GO主要对ZIF-8起到尺寸调控和结构导向作用.气体吸附分离测试表明，ZIF-8@GO材料与ZIF-8材料相同，均是以微孔占据孔隙主导地位的材料；当GO参与复合比例为8%时，ZIF-8@GO（8%）材料的BET和Langmuir比表面积分别为1 037.18、1 115.90 m²/g,对CO₂吸附量为34.347 cm³/g,较母体ZIF-8材料对CO₂吸附量提高了32.3%.更多还原

【Abstract】 The greenhouse effect caused by CO₂ emissions from fossil fuel combustion is becoming more and more serious, it is urgent to develop adsorbents with CO₂ adsorption properties. As new adsorbents, metal-organic frame materials（MOFs） and graphene oxide（GO） have the problem of low CO₂ adsorption performance. ZIF-8@GO was prepared by solvothermal method, and the microstructure and adsorption properties of ZIF-8@GO to CO₂ were studied by XRD, SEM and BET. The results showed that ZIF-8@GO maintains the crystal structure of ZIF-8, and GO mainly plays a role in size regulation and structure orientation of ZIF-8. The gas adsorption separation test showed that ZIF-8@GO is the same as ZIF-8, which is dominated by micropores. Notably, when the GO participation ratio is 8%, the BET and Langmuir specific surface areas of ZIF-8@GO（8%） materials are 1 037.18, 1 115.90 m²/g, respectively, and the adsorption capacity to CO₂ is 34.347 cm³/g. Compared with the parent ZIF-8 material, the CO₂ adsorption capacity is increased by 32.3%.更多还原