Enhanced sorption of bisphenol A on α-ketoglutaric acid-modified chitosan resins by hydrophobic sorption of hemimicelles

被引：13

作者：

Gong, Renmin ^{[1
,2
]}

Jiang, Yan ^{[2
]}

Cai, Wenkai ^{[2
]}

Zhang, Ke ^{[2
]}

Yuan, Bo ^{[1
]}

Jiang, Jihong ^{[1
]}

机构：

[1] Xuzhou Normal Univ, Key Lab Biotechnol Med Plants Jiangsu Prov, Xuzhou 221116, Peoples R China

[2] Anhui Normal Univ, Coll Life Sci, Wuhu 241000, Peoples R China

来源：

DESALINATION | 2010年 / 258卷 / 1-3期

关键词：

BPA; Sorption; KCR; CTAB; Hydrophobic sorption of hemimicelles; AQUEOUS-SOLUTION; ADSORPTION; REMOVAL; WATER; BIODEGRADATION; DEGRADATION; DERIVATIVES; OXIDATION; CHEMICALS;

D O I：

10.1016/j.desal.2010.03.049

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this paper, alpha-ketoglutaric acid-modified chitosan resins (KCR) were successfully prepared. The capacity of KCR as weak cation exchanger for sorbing bisphenol A (BPA) from aqueous solution was compared with crosslinked chitosan resins (CCR) with cetyl trimethyl ammonium bromide (CTAB) as the intermediary of BPA sorbed on sorbent. The BPA removal was found to be dependent on the initial pH, KCR/CTAB dosage, BPA concentration, and contact time. The isothermal data of BPA sorption on KCR was in well agreement with the Langmuir model, and the maximum sorption capacity (Q.) of KCR for BPA was 30.67 mg/g. The BPA sorption process could be described by the pseudo-second-order rate kinetic model. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：54 / 58

页数：5

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