本文已被：浏览 1322次 下载 1011次
中文摘要: 通过水杨羟肟酸(SHA)与氯甲基化交联聚苯乙烯微球之间的Friedel-Crafts烷基化反应，实现了SHA在交联聚苯乙烯微球(CPS)上的固载化，制得了SHA功能化微球SHA-CPS。采用红外光谱对其结构进行表征；通过吸附动力学实验和等温吸附实验研究了SHA-CPS微球对苯酚及对硝基苯酚的吸附行为，考察了介质的pH、温度对SHA-CPS微球吸附苯酚的影响，探讨了其吸附热力学与吸附机理。结果表明，SHA-CPS对苯酚及对硝基苯酚具有较强的吸附能力和较快的吸附速率，其吸附能力受温度和pH影响较大。SHA-CPS对苯酚及对硝基苯酚的吸附动力学过程符合准一级方程，其吸附行为符合Freundich吸附模型，属单分子层吸附。SHA-CPS吸附树脂具有良好的重复使用性能。
Abstract:Salicylhydroxamic acid (SHA) was covalently bounded onto the chloromethylated cross-linked polystyrene spheres (CPS) through the Friedel-Crafts alkylation reaction between them, preparing the SHA functionalized spheres SHA-CPS. The structure of SHA-CPS was characterized by FT-IR. The adsorption properties of SHA-CPS spheres towards phenol and p-nitrophenol were studied through the kinetic and isotherm experiments. The effects of various factors including temperature and pH value on adsorption capacities of phenol on SHA-CPS spheres were researched. The adsorption thermodynamic properties were explored for explaining the adsorptive mechanism. Results show that SHA-CPS possesses very strong adsorption ability and fast adsorption rate for phenol and p nitrophenol. The adsorption kinetic processes are in conformity with the pseudo first order equation well. The adsorption ability is significantly dependent on temperature and pH value. The adsorption isotherms conform well to the Freundich model, which is monolayer adsorption. Besides, SHA-CPS has the better reusability.
文章编号： 中图分类号： 文献标志码：
基金项目:国家自然科学基金 (21307116)；山西省自然科学基金（2014011017 5）
| 作者 | 单位 | |
| 王蕊欣 | 中北大学化工与环境学院，太原 030051 | wrx0212@126.com |
| 王洪静 | 中北大学化工与环境学院，太原 030052 | |
| 雷彩萍 | 中北大学化工与环境学院，太原 030053 | |
| 史小慧 | 中北大学化工与环境学院，太原 030054 |
引用本文：
王蕊欣,王洪静,雷彩萍,史小慧.羟肟酸型吸附树脂对苯酚的吸附性能[J].功能高分子学报,2015,28(1):.
WANG Rui xin,WANG Hong jing,LEI Cai ping,SHI Xiao hui.Adsorption Characteristic of Phenol by Hydroxamic Acid Functionalized Polystyrene Resin[J].Journal of Functional Polymers,2015,28(1):.
王蕊欣,王洪静,雷彩萍,史小慧.羟肟酸型吸附树脂对苯酚的吸附性能[J].功能高分子学报,2015,28(1):.
WANG Rui xin,WANG Hong jing,LEI Cai ping,SHI Xiao hui.Adsorption Characteristic of Phenol by Hydroxamic Acid Functionalized Polystyrene Resin[J].Journal of Functional Polymers,2015,28(1):.
