化学修饰的吸附树脂对水溶液中烯啶虫胺的吸附行为  

Adsorption of Nitenpyram in Aqueous Solution with Chemically Modified Adsorption Resins

作　　者：吴秀红[1] 张坤[1] 殷能 陈海军[1] 顾云兰[1] 张根成[1] 

机构地区：[1]盐城师范学院化学化工学院江苏省滩涂生物资源与环境保护重点建设实验室,江苏盐城224051

出　　处：《农药》2013年第12期877-879,共3页Agrochemicals

基　　金：盐城师范学院大学生创新项目;江苏省科技创新与成果转化专项引导资金项目(BK2010037);江苏省高校科技成果产业化推进工程项目(JH10-43);盐城师范学院教学研究课题(13YCTCJY012);盐城师范学院自然科学研究项目(12YCKL004)

摘　　要：[目的]研究水溶液中烯啶虫胺的治理技术。[方法]以烯啶虫胺为吸附质,以化学修饰功能基的吸附树脂为吸附剂,进行静态吸附实验,研究烯啶虫胺在4种树脂上不同温度下(288、303、313 K)的吸附行为。[结果]4种吸附剂对烯啶虫胺的吸附等温线更符合Freundlich方程,且n均大于2。烯啶虫胺在4种吸附剂上的吸附过程均为吸热过程,其中乙基纤维素修饰的吸附树脂具有最佳的吸附性能。吸附过程的焓变为正,吉布斯自由能为负值,熵变为正值。[结论]通过在树脂的表面化学修饰功能基,有效改善树脂对烯啶虫胺的吸附能力,为水溶液中烯啶虫胺的治理技术提供依据。[Aims] The prevention and treatment technology of nitenpyram in aqueous solution with four adsorption resins chemically modified with proline, tannic acid, 2-carbonylbenzoyl, ethyl cellulose groups was studied. [Methods] The adsorption behaviors of nitenpyram on four adsorption resins were made by static equilibrium adsorption at different temperature （288, 303, and 318 K）. [Results] The results showed the adsorption was fitted by Freundlich model better, n〉2. The adsorption of nitenpyram on four adsorption resins was an endothermic process. And in the process, enthalpy change and entropy change were positive, Gibbs free energy was negative. The resin modified with ethyl cellulose group had the best adsorption ability of nitenpyram. [Conclusions] The chemical modification resins were effectively improved the adsorption ability of nitenpyram, to provide the prevention and treatment technology in aqueous solution of nitenpyram.

关 键 词：吸附树脂 化学修饰 烯啶虫胺 

分 类 号：TQ450.1[化学工程—农药化工]