REMOVAL OF 4-CHLOROPHENOL FROM AQUEOUS SOLUTIONS BY CYCLODEXTRIN POLYMER

被引：0
|
作者：
Li, Ning [1 ]
Mei, Zheng [1 ]
Chen, Sheng-Ming [1 ]
机构：
[1] Chongqing Technol & Business Univ, Coll Environm & Biol Engn, Chongqing 400067, Peoples R China
来源：
FRESENIUS ENVIRONMENTAL BULLETIN | 2009年 / 18卷 / 11A期
关键词：
Adsorption; Cyclodextrin; 4-Chlorophenol; Cyclodextrin polymer; AROMATIC-COMPOUNDS; ADSORPTION; SORPTION; WATER; DEGRADATION; EXTRACTION; ADSORBENT; KINETICS;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The removal of 4-chlorophenol (4-CP) from aqueous solutions by beta-cyclodextrin polymer (beta-CDP) has been studied. The effects of contact time, pH, NaCl concentration and initial 4-CP concentration were studied to obtain the best experimental conditions. Results of batch experiments showed that beta-CDP exhibited high sorption capacities toward 4-CP (up to 24.4 mg/g when initial concentration of 4-CP solution was 140 mg/L at 283K). Adsorption kinetics followed a pseudo 2(nd) order (Ho and McKay) equation, suggesting that the rate-limiting step may be chemisorption. Freundlich isotherm gave the best correlation for the adsorption of 4-CP on beta-CDP. The regeneration capacity of beta-CDP was so strong that it could be used as a kind of recyclable adsorbent.
引用
收藏
页码：2249 / 2253
页数：5
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