CAJ | 학술논문

通过偶氮化反应将杯【4】芳烃接枝到AmberliteXAD-4树脂上，采用FTIR、SEM等方法，表征了杯【4】芳烃修饰AmbertiteXAD-4树脂的结构．吸附实验表明，杯【4】芳烃修饰AmberliteXAD-4树脂对胆红素的吸附容量远远大于单纯AmberliteXAD-4树脂．在温度为25℃，胆红素浓度为20mg／L、吸附时间为2h的条件下，胆红素的平衡去除率在90％以上；而相同条件下的单纯AmberliteXAD-4树脂对胆红素的去除率仅为32．8％．水溶液中修饰树脂达到吸附平衡的时间为2h左右，而且温度越高达到平衡吸附的时间越短．在近中性（pH=5～7）条件下修饰树脂对胆红素的吸附容量达到最大值，为2．1medg，但随pH的降低或增大吸附容量均迅速降低．
통과우담화반응장배【4】방경접지도AmberliteXAD-4수지상，채용FTIR、SEM등방법，표정료배【4】방경수식AmbertiteXAD-4수지적결구．흡부실험표명，배【4】방경수식AmberliteXAD-4수지대담홍소적흡부용량원원대우단순AmberliteXAD-4수지．재온도위25℃，담홍소농도위20mg／L、흡부시간위2h적조건하，담홍소적평형거제솔재90％이상；이상동조건하적단순AmberliteXAD-4수지대담홍소적거제솔부위32．8％．수용액중수식수지체도흡부평형적시간위2h좌우，이차온도월고체도평형흡부적시간월단．재근중성（pH=5～7）조건하수식수지대담홍소적흡부용량체도최대치，위2．1medg，단수pH적강저혹증대흡부용량균신속강저．
The calix[4]arene is connected to Amberlite XAD-4 resin covalently through a diazotization reaction. The structure of Amberlite XAD-4 resin based on calix[4]arene is characterized using FT-IR, SEM. The sorption results show that Amberlite XAD-4 resin based on calix[4]arene has much better removal to the bilirubin in aqueous solutions than Amberlite XAD-4 resin which are presence alone in aqueous solutions. The removal rate of bilirubin is over 90% at equilibrium, at the conditions of 25℃, the concentration of bilirubin is 20 mg/L and the adsorption time is 2 h. At the same conditions, the removal of bilirubin from Amberlite XAD-4 resin is 2.8% alone. The equilibrium time is 2h and decreases with an increase in temperature. When the aqueous solution stays near the neutral （pH = 5 - 7）, the adsorption capacity of Amberlite XAD-4 resin modified with calix[4]arene to the bilirubin reaches maximum value, which is 2.1 mg/g but the value decreases rapidly when the pH increases or decreases