CAJ | 학술논문

以大孔丙烯酸系弱酸树脂 DK110为大分子骨架,通过与5-氯甲基-8-羟基喹啉的接枝反应,合成了带8-羟基喹啉螯合功能基的改性树脂 HQDK110.探讨了 HQDK110树脂对 Cu2＋在不同温度、不同 pH值、不同浓度等条件下的静态吸附性能、动态吸附性能及脱附性能.结果表明,HQDK110树脂对 Cu2＋具有良好的吸附作用,实验条件下,25℃时 HQDK110树脂对Cu2＋的吸附量达2．278 mmol/g.HQDK110树脂对Cu2＋的动力学吸附很好地符合了拟二级动力学模型,吸附过程符合 Langmuir 吸附等温式.树脂对Cu2＋的去除率在较宽的浓度范围内达到98％以上,吸附Cu2＋后的树脂在0．1 mol/L 的盐酸溶液中的脱附率达96．88％.树脂有良好的重复使用性能.
이대공병희산계약산수지 DK110위대분자골가,통과여5-록갑기-8-간기규람적접지반응,합성료대8-간기규람오합공능기적개성수지 HQDK110.탐토료 HQDK110수지대 Cu2＋재불동온도、불동 pH치、불동농도등조건하적정태흡부성능、동태흡부성능급탈부성능.결과표명,HQDK110수지대 Cu2＋구유량호적흡부작용,실험조건하,25℃시 HQDK110수지대Cu2＋적흡부량체2．278 mmol/g.HQDK110수지대Cu2＋적동역학흡부흔호지부합료의이급동역학모형,흡부과정부합 Langmuir 흡부등온식.수지대Cu2＋적거제솔재교관적농도범위내체도98％이상,흡부Cu2＋후적수지재0．1 mol/L 적염산용액중적탈부솔체96．88％.수지유량호적중복사용성능.
A novel 8-hydroxyquinoline modified DK110 resin(HQDK110)was synthesized by using weak-acidic macroporous acrylic acid resin DK110 as macromolecular skeleton through graft modification of 5-chloromethyl 8-hydroxyquinoline on it.The static,dynamic adsorption and desorption properties of Cu2+ on the HQDK110 resin were researched respectively under different temperature,pH value and metal ion concentration.The re-sults showed that the resin had good adsorption effect to Cu2+,and adsorption capacity was 2.278 mmol/g un-der experimental conditions when the temperature was 25 ℃.Adsorption process was better described by the pseudo second-order kinetics equation and Langmuir adsorption isotherm.The removal efficiency of Cu2+ was found to be more than 98% in wide concentration range and desorption efficiency was to 96.88% in 0.1 mol/L HCl solution.The resin had good reusability.