CAJ | 학술논문

以2‐乙基己基膦酸单2‐乙基己基酯为载体，煤油为膜溶剂，聚偏氟乙烯膜为支撑体，构建了支撑液膜体系。采用响应曲面优化法对影响Cu（II）传输的主要因素进行了优化并建立了二次多项式数学模型。同时研究了Cu（II）在该体系中的传输过程，建立了Cu（II）在支撑液膜体系中传输的渗透系数方程。结果表明，建立的二次模型的 R2为0．9996，拟合度良好，具有高度显著性。获得Cu（II）在支撑液膜体系中最佳传输条件为：Cu（II）起始浓度为4．0×10－4 mol／L ，迁移时间为120 min ，载体浓度为7．0％，料液相pH为5．0，在此条件下，Cu（II）的迁移率可达到84．9％，与预测值的相对误差为0．35％。
이2‐을기기기련산단2‐을기기기지위재체，매유위막용제，취편불을희막위지탱체，구건료지탱액막체계。채용향응곡면우화법대영향Cu（II）전수적주요인소진행료우화병건립료이차다항식수학모형。동시연구료Cu（II）재해체계중적전수과정，건립료Cu（II）재지탱액막체계중전수적삼투계수방정。결과표명，건립적이차모형적 R2위0．9996，의합도량호，구유고도현저성。획득Cu（II）재지탱액막체계중최가전수조건위：Cu（II）기시농도위4．0×10－4 mol／L ，천이시간위120 min ，재체농도위7．0％，료액상pH위5．0，재차조건하，Cu（II）적천이솔가체도84．9％，여예측치적상대오차위0．35％。
Supported liquid membrane system is prepared using 2‐Ethylhexylphosphoric acid mono‐2‐ethylhexyl ester as carrier ,kerosene as the membrane solvent and polyvinylidene fluoride as supported matrix .Response surface methodology based on the Box‐Behnken design(BBD) is employed to investigate the effects of various factors on migration rate of Cu (II) ,and the quad‐ratic polynomial mathematic model is built .The transfer process of Cu (II) is investigated ,and the transfer coefficient equation is established .T he results show that R2 in the established quad‐ratic model is 0 .999 6 ,with better fitness and higher significance .The optimal experimental con‐dition can be obtained as follow s :Cu(II) concentration is 4 .0 × 10-4 mol/L ,migration time is 120 min ,carrier concentration is 7 .0% and feed solution pH is 5 .0 .Under the optimal conditions , the migration rate of Cu(II) can reach 84 .9% .The predicted value of migration rate is very satis‐fied with data of experimentation ,the relative error is found only to be 0 .35% .