1,2,4-苯三酸酐修饰的吸附树脂对氯酚类物质的吸附研究  

ADSORPTION OF CHLORPHENOLS IN AQUEOUES SOLUTION ONTO ADSORPTION RESIN MODIFIED BY1,2,4-BEZENETRICARBOXYLIC ANHYDRIDE

作　　者：施卫忠[1] 李万鑫[1] 沙新龙[1] 刘总堂[1] 邢蓉[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,盐城224051

出　　处：《离子交换与吸附》2013年第4期314-322,共9页Ion Exchange and Adsorption

基　　金：国家自然科学基金(No.21077087);江苏省"六大人才高峰"项目(2011-JY-011);江苏省"333高层次人才工程";江苏省新型环保重点实验室开放课题基金(No.AE201009);江苏省高校自然科学研究项目(No.13KJB610016);江苏省滩涂生物资源与环境保护重点建设实验室开放课题(No.JLCBE08001)资助

摘　　要：合成了1,2,4-苯三酸酐修饰超高交联吸附树脂,通过静态吸附,研究了树脂上对氯酚类物质的吸附性能及吸附机理。结果表明,树脂对4种氯酚类物质均具有较好的吸附性能,对2,4-二氯苯酚的吸附是化学吸附占主导作用,对对氯苯酚、2,6-二氯苯酚和2,4,6-三氯苯酚的吸附都是物理吸附和化学吸附共同作用的过程,Freundlich吸附等温方程很好地拟合4种氯酚类物质在树脂上的吸附行为。The hypercrosslinked adsorption resins （FZH124） modified by 1,2,4-bezenetricarboxylic anhydride were synthesized through the post-crossing of chloromethyl low crosslinking macroporous polystyrene. The static adsorption and desorption characteristics for chlorophenols in aqueous solution at the temperature range of 288-318K on FZH124 were studied by using bottle point method to confirm the existence of chemisorpfion effects, which was further interpreted by the approximate orbital energy level difference between adsorbent and chlorophenols calculated with the semiempifical molecular orbital method PM3. The results indicated that chemisorption effects existed in the adsorption system of chlorophenols in aqueous solutions with FZH124 at the proper temperature, and Freundlich adsorption isothermal equation could be applied for description of the adsorption model of chlorophenols.

关 键 词：吸附树脂 氯酚类物质 1 2 4-苯三酸酐 化学吸附效应 分子轨道 

分 类 号：O647.3[理学—物理化学]