In the present work, the effect of different synthesis solvents on the structure crystallinity, and the CO₂ adsorption capacity of zeolitic imidazolate framework-8 (ZIF-8) has been investigated. In this regard, the synthesis of ZIF-8 using different organic and ionic liquid solvents, including Deionized (DI) water, acetone, ammonia, dimethylformamide (DMF), ethanol, and a synthesized ionic liquid (IL) in the presence of ultrasonic waves at room temperature was fulfilled. The obtained results unveiled that fabricated ZIF-8 using acetone and ionic liquid gives the smallest and largest crystal sizes around 17.7 and 27.6 ​nm, corresponded to the highest and lowest crystallinity respectively. Besides, TEM and N₂ adsorption-desorption analyses illustrated higher crystallinity of acetone-synthesized ZIF-8 would result in lower particle size and higher BET surface area. Finally, the adsorption study shows that CO₂ uptake on the ZIF-8 decreases from 150 to 95 CC(STP)/g at 1400 ​kPa when the acetone solvent is replaced by IL.

在目前的工作中，已研究了不同合成溶剂对结构结晶度和沸石咪唑酸酯骨架8（ZIF-8）的CO ₂吸附能力的影响。在这方面，在超声波存在下，使用不同的有机和离子液体溶剂（包括去离子（DI）水，丙酮，氨，二甲基甲酰胺（DMF），乙醇和合成的离子液体（IL））合成ZIF-8达到室温。获得的结果表明，使用丙酮和离子液体制造的ZIF-8产生的最小和最大晶体尺寸约为17.7和27.6 nm，分别对应于最高和最低结晶度。此外，TEM和N ₂吸附-解吸分析表明，丙酮合成的ZIF-8的较高结晶度将导致较低的粒径和较高的BET表面积。最后，吸附研究表明，当用IL代替丙酮溶剂时，在1400 kPa下，ZIF-8的CO ₂吸收量从150 CC（STP）/ g降低至95 CC（STP）/ g。