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首页> 外文期刊>Journal of Macromolecular Science. Pure and Applied Chemistry >Hg(II) transport through modified supported liquid membrane
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Hg(II) transport through modified supported liquid membrane

机译：Hg（II）通过改性的支撑液膜传输

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摘要

In the present work, 5,11,17,23 tetrakis[(propylthio)methyl]-25,26,27,28-tetrahydroxycalix[4]arene (1) was utilized as Hg(II) selective carrier in supported liquid membrane (SLM) transport. For impregnation of carrier 1, Celgard 2500 and 2400 membranes were utilized as solid support. Influence of solvent type (chloroform, xylene, diphenyl ether, and toluene), as well as anion type (Cl-/NO-_3) was also explored on the transport of Hg(II). Danesi mass transfer model and Fick's first law of diffusion were followed for determining permeability (P) and flux (J) values. From the results of the solvents, it was revealed that permeability values increase in the order of diphenyl ether>chloroform>xylene>toluene. Moreover, Cl-was proved to be more effective co-anion for Hg(II) than NO-_3 due to lipophilicity in membrane phase. Efficient transport across SLM relies upon carrier specificity towards metal ion, appropriate solvent and co-anion. Hence, this study shows that Hg(II) transport is efficient and reproducible through SLM by using carrier 1.
机译：在本工作中，将5,11,17,23四[[（丙硫基）甲基] -25,26,27,28-四羟基杯[4]芳烃（1）用作负载型液膜中的Hg（II）选择性载体（ SLM）运输。为了浸渍载体1，将Celgard 2500和2400膜用作固体载体。还探讨了溶剂类型（氯仿，二甲苯，二苯醚和甲苯）以及阴离子类型（Cl- / NO-_3）对汞（II）传输的影响。遵循Danesi传质模型和Fick第一扩散定律确定渗透率（P）和通量（J）值。从溶剂的结果可以看出，渗透率值以二苯醚>氯仿>二甲苯>甲苯的顺序增加。此外，由于膜相的亲脂性，Cl-被证明比NO-_3对Hg（II）更有效。跨SLM的有效运输取决于载体对金属离子，适当的溶剂和共阴离子的特异性。因此，这项研究表明，使用载体1可以通过SLM有效且可重现Hg（II）的运输。

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