氧化叔胺树脂的合成及其对苯酚的吸附性能研究  

SYNTHESIS OF OXIDIZED TERTAMINE RESIN AND ITS ADSORPTION PROPERTY FOR PHENOL

作　　者：段家铁[1] 徐满才[1] 李海涛[1] 史作清[2] 何炳林[2] 

机构地区：[1]湖南师范大学化学化工学院,长沙410081 [2]吸附分离功能高分子材料国家重点实验室,南开大学高分子化学研究所,天津300071

出　　处：《离子交换与吸附》2004年第1期40-45,共6页Ion Exchange and Adsorption

基　　金：国家自然科学基金资助(20174017)项目

摘　　要：将D301树脂的叔胺基氧化,合成了大孔交联氧化叔胺树脂。比较D301树脂与氧化叔胺树脂对正己烷溶液中和水溶液苯酚的吸附性能,发现氧化叔胺树脂对苯酚的吸附量比D301树脂的有明显的增加。为弄清吸附量增加的原因,根据氧化叔胺树脂对正己烷溶液中苯酚的吸附等温线,利用热力学函数关系计算了等量吸附焓、吸附Gibbs自由能和吸附熵,发现叔胺树脂氧化后,与苯酚的相互作用和吸附的自发倾向增强,但吸附过程仍为氢键吸附。The title resin was synthesized by oxidation of D301 resin. Adsorption properties for phenol in hexane and aqueous solution of the oxidized tertamine resin were compared with those of D301 resin, and the result showed that adsorption capacities of the oxidized tertamine resin were larger than those of D301 resin both in hexane and in aqueous solution. In order to rationalize the enhancement of adsorption capacity, values of isosteric adsorption enthalpy, adsorption Gibbs free energy and adsorption entropy were calculated from the isotherms of phenol adsorbed onto the oxidized tertamine resin in hexane solution according to thermodynamic function relationships. The results showed that the interactions between the oxidized resin and phenol were stronger than those between D301 resin and phenol, and the adsorption feasibility for phenol was enhanced as the oxidation of the resin, and yet adsorption of phenol onto the oxidized resin in hexane was also based on hydrogen bonding.

关 键 词：氧化叔胺树脂 合成 苯酚 吸附性能 氢键吸附 吸附剂 正己烷 废水处理 热力学 

分 类 号：X703.5[环境科学与工程—环境工程]