Comparative study of the adsorption on chitosan beads of phthalate esters and their degradation products

被引：86

作者：

Salim, Catherine J. ^{[1
,2
]}

Liu, Hui ^{[1
,2
]}

Kennedy, John F. ^{[3
]}

机构：

[1] China Univ Geosci, Key Lab Biogeol & Environm Geol, Minist Educ, Wuhan 430074, Peoples R China

[2] China Univ Geosci, Sch Environm Studies, Wuhan 430074, Peoples R China

[3] Adv Sci & Technol Inst, Chembiotech Labs, Bromsgrove B60 4JE, Worcs, England

来源：

CARBOHYDRATE POLYMERS | 2010年 / 81卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Phthalic acid esters (PAEs); Phthalic monoesters (MPEs); Phthalic acid (PA); Chitosan beads; Adsorption; ACID ESTERS; DEVELOPMENTAL TOXICITY; LANDFILL CONDITIONS; AQUEOUS-SOLUTION; WATER; REMOVAL; MONOESTERS; ALPHA; METABOLITES; HYDROLYSIS;

D O I：

10.1016/j.carbpol.2010.03.024

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The adsorption behavior of phthalate esters (PAEs) and their degraded products such as phthalate monoesters (MPEs) and phthalic acid (PA) in aqueous solution on chitosan beads was studied. The results of kinetic experiments showed that dibutyl phthalate (DBP) was adsorbed more than di-(2-ethylhexyl) phthalate (DEHP) and dimethyl phthalate (DMP). MPEs exhibited less adsorption than PAEs. Monobutyl phthalate (MBP) had higher adsorption capacity than monomethyl phthalate (MMP) and monoethylhexyl phthalate (MEHP). PA showed the highest adsorption capacity compared to MPEs and PAEs. Fourier transform infrared spectroscopy (FT-IR) was used to characterise the interaction between chitosan and PAEs, MPEs, and PA molecules. Results showed that chitosan adsorbed PAEs mainly due to hydrophobic interactions, and interacted with PA mainly due to interactions between polar active groups. For the monoesters, especially MMP and MEHP, lower hydrophobicity than PAEs and higher hydrophilicity than PA made them less adsorbable. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：640 / 644

页数：5

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