Lv Rui, Cui Shuya, Zou Yangmei, Zheng Li
Department of Chemistry and Chemical Engineering, Mianyang Teacher's College, Mianyang, Sichuan 621000, China.
J Anal Methods Chem. 2018 Jun 3;2018:3980364. doi: 10.1155/2018/3980364. eCollection 2018.
Two thermoregulated dicationic ionic liquids were synthesized and applied for effective extraction of the common dye malachite green oxalate (MG). The extraction parameters such as amount of ionic liquids, pH of water phase, extraction time, cooling time, and centrifugal time on the extraction efficiency were investigated systematically. It revealed that the dye has been successfully extracted into the ionic liquids, with high extraction efficiency higher than 98%, and recovery of 98.2%-100.8%, respectively. Furthermore, these ionic liquids can be recycled easily after elution. The reusable yields were 87.1% and 88.7%. The extraction of the dye into the thermoregulated ionic liquid provides a method of minimizing pollution of waste water potentially.
合成了两种具有热调节功能的双阳离子离子液体，并将其用于有效萃取常见染料草酸孔雀石绿（MG）。系统研究了离子液体用量、水相pH值、萃取时间、冷却时间和离心时间等萃取参数对萃取效率的影响。结果表明，该染料已成功萃取到离子液体中，萃取效率高，高于98%，回收率分别为98.2%-100.8%。此外，这些离子液体洗脱后可轻松回收利用。可重复使用产率分别为87.1%和88.7%。将染料萃取到热调节离子液体中为潜在地减少废水污染提供了一种方法。
