Nowik-Zajac Anna, Zawierucha Iwona, Kozlowski Cezary
Institute of Chemistry, Health and Food Sciences, Jan Dlugosz University of Czestochowa PL42200 Czestochowa Poland
RSC Adv. 2019 Oct 2;9(53):31122-31132. doi: 10.1039/c9ra04347k. eCollection 2019 Sep 26.
This paper discusses the results of studies on the transport of Ag(i) across polymer inclusion membranes (PIMs), derivatives of calixpyrroles with methyl (KP1) and carboxyl (KP2) groups, as ion carriers, -nitrophenyl pentyl ether (-NPPE) as a plasticizer and cellulose triacetate (CTA) as support. The influence of the pH of the source phase, metal concentration, stripping phase as well as carrier and plasticizer concentration on the efficiency of Ag(i) transport through PIM is presented. Long-term experiments with a supported liquid membrane and a plasticizer membrane demonstrate the durability of the studied PIMs. The obtained results indicate that the competitive transport of Cu(ii), Zn(ii), Ag(i) and Cd(ii) from the aqueous nitrate source phase through KP1 and KP2 is an effective separation method for Ag(i) ions. The prepared PIMs were characterized by scanning electron microscopy (SEM), and atomic force microscopy (AFM) techniques.
本文讨论了关于银（I）通过聚合物包容膜（PIMs）传输的研究结果，该聚合物包容膜以带有甲基（KP1）和羧基（KP2）基团的杯吡咯衍生物作为离子载体，以对硝基苯基戊基醚（-NPPE）作为增塑剂，以三醋酸纤维素（CTA）作为支撑体。文中介绍了源相pH值、金属浓度、反萃相以及载体和增塑剂浓度对银（I）通过PIM传输效率的影响。使用支撑液膜和增塑剂膜进行的长期实验证明了所研究的PIMs的耐久性。所得结果表明，从硝酸盐水相源相中竞争性传输铜（II）、锌（II）、银（I）和镉（II）通过KP1和KP2是一种分离银（I）离子的有效方法。通过扫描电子显微镜（SEM）和原子力显微镜（AFM）技术对制备的PIMs进行了表征。
