期刊论文

Wen, Ruiming(wenruiming@sohu.com)

中文

中南大学学报(自然科学版)

1672-7207

2016

47

3

724-729

10.11817/j.issn.1672-7207.2016.03.003

(2013WK2008):湖南省科技计划资助项目 :Project(2013WK2008 :supported by the Science and Technology Plan of Hunan Province)

本校为第一且通讯机构

以二氯乙烷为溶剂,FeCl_3为催化剂,氯球发生Friedel-Crafts反应制备氯质量分数为6.32%的超高交联树脂(简记为GQ-09),将GQ-09树脂进一步用2-氨基吡啶修饰,制备超高交联树脂(简记为GQ-10),研究GQ-10树脂对水杨酸的吸附性能。实验结果表明:GQ-10树脂在pH为2.16时对水杨酸的吸附性能最好;GQ-10树脂对水杨酸的吸附等温线同时服从Langmuir方程和Freundlich方程;与树脂的孔结构对应,GQ-10树脂对水杨酸的吸附在2个时间段均适用准一级速率方程;GQ-10树脂对水杨酸的吸附既有阴离子交换,又存在酸碱作用和疏水作用。 GQ-10树脂吸附的水杨酸可用80%乙醇-0.5 mol/L NaOH解吸,解吸率为99.41%。

Dichloroethane was used as solvent and ferric chloride was used as catalyst, and the hyper-cross-linked resin with 6.32% chlorine content (denoted GQ-09) was synthesized with chloromethylated polystyrene by Friedel-Crafts reaction. GQ-09 resin was modified with aminopyridine to achieve the hyper-cross-linked resin with aminopyridine (denoted GQ-10). The adsorption properties for salicylic acid onto GQ-10 was studied. The results show that the maximum adsorption capacity of salicylic acid onto GQ-10 can be observed at pH of 2.16. The adsorption isotherms of salicylic acid onto GQ-10 can be char...