应用化工
應用化工
응용화공
APPLIED CHEMICAL INDUSTRY
2014年
10期
1871-1873
,共3页
铅离子%印迹聚合物%悬浮聚合
鉛離子%印跡聚閤物%懸浮聚閤
연리자%인적취합물%현부취합
lead ions%imprinted polymer%suspension polymerization
以Pb2+为模板，甲基丙烯酸（ MAA）为功能单体，乙二醇二甲基丙烯酸酯（ EDMA）为交联剂，十二烷基苯磺酸钠（ SDBS）为分散剂，采用乳液悬浮聚合法制备了铅离子印迹聚合物微球。通过静态平衡吸附实验和Seatehard分析法研究了聚合物微球的吸附性能和选择性。结果表明，铅离子印迹聚合微球能有效去除溶液中的铅离子，最大吸附容量为15.29 mg/g。在竞争离子Cd2+存在的溶液中，铅离子印迹聚合物微球呈现出对铅离子的高选择性。Pb2+/Cd2+的识别因子为19.01，结合位点的离解常数Kd =35.61 mg/L，最大表观结合量Qmax =25.19 mg/g。
以Pb2+為模闆，甲基丙烯痠（ MAA）為功能單體，乙二醇二甲基丙烯痠酯（ EDMA）為交聯劑，十二烷基苯磺痠鈉（ SDBS）為分散劑，採用乳液懸浮聚閤法製備瞭鉛離子印跡聚閤物微毬。通過靜態平衡吸附實驗和Seatehard分析法研究瞭聚閤物微毬的吸附性能和選擇性。結果錶明，鉛離子印跡聚閤微毬能有效去除溶液中的鉛離子，最大吸附容量為15.29 mg/g。在競爭離子Cd2+存在的溶液中，鉛離子印跡聚閤物微毬呈現齣對鉛離子的高選擇性。Pb2+/Cd2+的識彆因子為19.01，結閤位點的離解常數Kd =35.61 mg/L，最大錶觀結閤量Qmax =25.19 mg/g。
이Pb2+위모판，갑기병희산（ MAA）위공능단체，을이순이갑기병희산지（ EDMA）위교련제，십이완기분광산납（ SDBS）위분산제，채용유액현부취합법제비료연리자인적취합물미구。통과정태평형흡부실험화Seatehard분석법연구료취합물미구적흡부성능화선택성。결과표명，연리자인적취합미구능유효거제용액중적연리자，최대흡부용량위15.29 mg/g。재경쟁리자Cd2+존재적용액중，연리자인적취합물미구정현출대연리자적고선택성。Pb2+/Cd2+적식별인자위19.01，결합위점적리해상수Kd =35.61 mg/L，최대표관결합량Qmax =25.19 mg/g。
The lead ion imprinted polymer mierospheres were prepared by emulsion suspension polymeri-zation with Pb2+ as the template,the methaerylie aeid( MAA),EDMA and SDBS were used as funetional monomer,eross-linker and dispersant respeetively. The reeognition ability and binding eharaeteristies of lead ion imprinted mierospheres were investigated by statie adsorption equilibrium method and Seatehard analysis. The results showed that the lead ion imprinted mierospheres were effieient for lead ions removal from aqueous solution with a maximum adsorption eapaeity of 15. 29 mg/g. In the presenee of eompetitive ions Cd2+,the lead ion imprinted mierospheres showed a high seleetivity for lead ions. The reeognition faetor of Pb2+/Cd2+ is 19. 01,dissoeiation eonstant Kd =35. 61 mg/L,the largest apparent eombined a-mount Qmax =25. 19 mg/g.
