A novel aqueous biphasic system (ABS) composed of acetonitrile and amine solution (MeCN + TEOA) has been constructed by CO₂ (1 atm) gas flush process and applied for water purification. The formation process can be approached by various ways, including gas flush, salt addition and pH regulation. The usage of low cost materials in current system provided a feasible way in terms of large scale industrial applications. In this study, the influence factors of temperature (15 °C, 20 °C, 30 °C) and ratio distribution have been also discussed for the ABS formation, the results indicated that lower temperature is beneficial to current ABS formation. In addition, the tested system has been applied to estimation of the extraction efficiency towards the different metal ions. Nearly 100% metal ions were concentrated into bottom phase. All these attempts broaden the alternative materials of ABS construction and deepen the understanding of the mechanism of ABS formation, and demonstrated a practical model for ions extraction and water purification.

通过CO ₂构造了由乙腈和胺溶液（MeCN + TEOA）组成的新型双相水溶液体系（ABS）（1 atm）气体冲洗过程并应用于净水。形成过程可以通过多种方式进行，包括气体冲洗，添加盐和调节pH。就大规模工业应用而言，当前系统中低成本材料的使用提供了一种可行的方式。在本研究中，还讨论了温度（15°C，20°C，30°C）和比率分布对ABS形成的影响因素，结果表明较低的温度有利于当前的ABS形成。此外，该测试系统已应用于估计对不同金属离子的萃取效率。几乎100％的金属离子浓缩成底部相。所有这些尝试拓宽了ABS构造的替代材料，并加深了对ABS形成机理的理解，