双官能基修饰的超高交联吸附树脂对2，4-二氯苯酚的吸附性能研究

Study on the adsorption of 2,4-dichlorophenol onto the hypercrosslinked adsorption resin modified by bifunctional group

合成了用2-氨基酚修饰的新型双官能基聚苯乙烯-二乙烯苯吸附树脂MOAPR-1和MOAPR-2，研究了其在288～318K下对水溶液中2，4-二氯苯酚的静态吸附和静态脱附特征。结果表明，2，4-二氯苯酚在两种树脂上存在化学吸附现象，符合Freundlich等温吸附方程。利用半经验分子轨道法计算了几种吸附剂的近似结构和2，4-二氯苯酚的前线轨道能级，并对吸附过程进行了合理的解释。

New poly （styrene-divinylbenzene）hypercrosslinked adsorption resins modified with 2-aminophenol were prepared named MOAPR-1 and MOAPR-2, respectively. The static adsorption and static desorption characteristics for 2,4-dichlorophenol in aqueous solution onto above adsorption resins at the temperature range of 288 -318 K were studied to confirm the existence of chemisorption between adsorbate and adsorbent. The result shows that the adsorption of 2,4-dichlorophenol on MOAPR resin was a Freundlich type one and the chemisorption characteristics was interpreted by the approximate orbital energy lev el of several adsorbents and 2.4-dichloroohenol calculated with the semiempirieal molecular orbital method AM1.