烯啶虫胺在超高交联吸附树脂上的吸附性能研究  

Adsorption properties of nitenpyram onto hypercrosslinked polymeric resins

作　　者：唐树和[1] 陈建[1] 吴秀红[1] 

机构地区：[1]江苏省滩涂生物资源与环境保护重点建设实验室盐城师范学院应用化学与环境工程研究所,江苏盐城224051

出　　处：《化学研究与应用》2013年第1期95-99,共5页Chemical Research and Application

基　　金：江苏省滩涂生物资源与环境保护重点建设实验室开放项目(JLCBE11011);江苏省高校自然科学基础研究项目(12KJD150012)

摘　　要：研究了烯啶虫胺在NDA-150和NDA-1800超高交联吸附树脂上的静态吸附行为。静态吸附等温线表明:两种树脂对烯啶虫胺的吸附均为放热过程,吸附量随着温度的升高而降低,适当降低温度有利于吸附。吸附等温线符合Freundlich方程,为多分子层吸附。吸附速率随着温度的升高而增大,且表观活化能小于20KJ.mol-1,说明吸附较容易进行。NDA-150树脂对烯啶虫胺吸附及脱附性能较好,动态吸附量为351.1 mg.g-1。在323 K温度条件下,用95%乙醇作脱附剂,体积10BV(床体积)时,脱附率为96.43%。The adsorption thermodynamics and kinetics of nitenpyram from aqueous solution onto the NDA-150 and NDA-1800 hy- percrosslinked polymeric resins were studied. The static adsorption isotherms indicated that the adsorption is an exothermic process, with a raised adsorption capacity under decreasing temperature. And the adsorption isotherms are well described by Frendrich equa- tion, suggesting a muhilayer adsorption. The kinetic experiment results demonstrated that the adsorption rate is improved by increas- ing temperature. The apparent activation energy is less than 20 · mol-1 which indicates a favorable adsorption. The efficiency of adsorption and desorption is excellent that of nitenpyram onto NDA-150 resin, the adsorption capacity is 351.1 mg· g-1, and de- sorption was operated with the 95% ethanol as desorption agent, under 323 K, the desorption rate reaches 96.43%, after the treat- ment with 10 BV of the solution mentioned above.

关 键 词：超高交联吸附树脂 烯啶虫胺 吸附 脱附 

分 类 号：O647.3[理学—物理化学]