Polyphenylene sulfide based anion exchange fiber:Synthesis,characterization and adsorption of Cr(VI)

作     者：Jiajia Huang Xin Zhang Lingling Bai Siguo Yuan 

作者机构：College of Chemical Engineering and EnergyZhengzhou UniversityZhengzhou 450001China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2012年第24卷第8期

页      面：1433-1438页

核心收录：

学科分类：0821[工学-纺织科学与工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 082102[工学-纺织材料与纺织品设计] 

基　　金：support of the National Natural Science Foundation of China (No. 20574063 21004055) 

主　　题：strong base anion exchanger polyphenylene sulfide fiber Cr（VI） adsorption 

摘      要：A fibrous strong base anion exchanger （QAPPS） was prepared for the first time via chloromethylation and quaternary amination reaction of polyphenylene sulfide fiber （PPS）, and its physical-chemical structure and adsorption behavior for Cr（VI） were characterized by FT- IR, Energy Dispersive Spectrometry, TG-DTG, elemental analysis and batch adsorptive technique, respectively. The novel fibrous adsorbent could effectively adsorb Cr（VI） over the pH range 1-12, the maximum adsorption capacity was 166.39 mg/g at pH 3.5, and the adsorption behavior could be described well by Langmuir isotherm equation model. The adsorption kinetics was studied using pseudo first-order and pseudo second-order models, and the 4/2 and equilibrium adsorption time were 5 and 20 min respectively when initial Cr（VI） concentration was 100 mg/L. The saturated fibers could be regenerated rapidly by a mixed solution of 0.5 mol/L NaOH and 0.5 mol/L NaCl, and the adsorption capacity was well maintained after six adsorption-desorption cycles.