邻羧基苯甲酰基修饰的吸附树脂对水中2-萘酚的吸附  

Adsorption of 2-Naphthol in Aqueous Solution onto the Adsorption Resin Modified with 2-Carbonylbenzoyl Group

作　　者：施卫忠[1] 吴林[1] 顾云兰[1] 陈建[1] 邢蓉[1] 张根成[1] 费正皓[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,江苏盐城224002

出　　处：《高分子材料科学与工程》2012年第2期80-83,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(21077087);江苏省“333高层次人才培养工程”和“青蓝工程”资助;江苏省教育厅项目(09KJB150013);江苏省教育厅重大基础研究项目资助(07KJA18017)

摘　　要：采用邻羧基苯甲酰基修饰的吸附树脂FZH5,以Amberlite XAD-4作为参照,探讨了对水溶液中2-萘酚的吸附热力学和吸附动力学。分别用Langmuir等温方程和Freundlich等温方程对吸附等温线进行拟合,并采用动力学准一级和二级方程对两种树脂进行了动态吸附拟合。结果表明,经过修饰的FZH5对水中2-萘酚的吸附效率高于Amberlite XAD-4,对2-萘酚的吸附过程在温度较高时化学吸附为主导,吸附速率主要受控于颗粒内扩散过程。Compared with that of Amberlite XAD-4 resin,the adsorption thermodynamics and adsorption kinetics of 2-naphthol in aqueous solution were studied with the adsorbent named FZH5 modified with 2-carbonylbenzoyl group on chloromethylcated styrene-divinylbenzene.Two isotherm models（Langmuir and Freundlich） were used to fit the static adsorption results and the pseudo-first-order equation and pseudo-first-order equation were used to fit the kinetics data.The results show the adsorption efficiencies of 2-naphthol onto FZH5 are higher than those of XAD-4,which attributes to the chemical transition between 2-carbonylbenzoyl group in FZH5 and the phenolic hydroxyl group in 2-naphthol at higher temperature.And the intraparticle diffusion plays a dominant role in the adsorption of 2naphthol onto two adsorbents studied.

关 键 词：吸附树脂 2-萘酚 化学修饰 吸附热力学 吸附动力学 

分 类 号：TQ424.3[化学工程]