Removal of phthalate esters by α-cyclodextrin-linked chitosan bead

被引：116

作者：

Chen, Chih-Yu

Chen, Chling-Chang

Chung, Ying-Chien ^{[1
]}

机构：

[1] China Inst Technol, Dept Biol Sci & Technol, Taipei 115, Taiwan

[2] Natl Taichung Nursing Coll, Dept Gen Educ, Taichung 403, Taiwan

[3] Hsing Wu Coll, Dept Tourism, Taipei 244, Taiwan

来源：

BIORESOURCE TECHNOLOGY | 2007年 / 98卷 / 13期

关键词：

phthalate esters; alpha-CD-linked chitosan bead; adsorption; recovery; desorption; WATER; DEGRADATION; ADSORBENTS; TOXICITY; ALGA;

D O I：

10.1016/j.biortech.2006.09.009

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Removal of phthalate esters (PAEs) by alpha-cyclodextrin (CD)-linked chitosan bead in aqueous solution was studied. Results of kinetic experiments indicated that diheptyl phthalate (DHpP) was adsorbed most efficiently (3.21 mg/g) among the six PAEs. DHpP recovery was 94.6% from alpha-D-linked chitosan bead by shaking both with a mixture of methanol and water (v/v = 8/2). The recovered alpha-CD chitosan bead was reusable as an adsorbent 20 times in the batch tests. The adsorbed PAE by alpha-CD-linked chitosan bead decreased as temperature increased. However, coexisting pH, NaCl, and Ca2+ did not affect adsorption efficiency. It was concluded that the application of low cost alpha-CD-linked chitosan bead could have the potential to effectively remove PAEs from different aquatic environments. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2578 / 2583

页数：6

共 28 条

[21] Adsorption behaviour of Fe(II) and Fe(III) ions in aqueous solution on chitosan and cross-linked chitosan beads [J].