Adsorptive removal of 2,4-dichlorophenoxyacetic acid (2,4-D) from water with a metal-organic framework

被引：221
|
作者：
Jung, Beom K.
Hasan, Zubair
Jhung, Sung Hwa [1 ]
机构：
[1] Kyungpook Natl Univ, Dept Chem, Taegu 702701, South Korea
来源：
CHEMICAL ENGINEERING JOURNAL | 2013年 / 234卷
基金：
新加坡国家研究基金会;
关键词：
Adsorption; 2,4-D; Metal-organic frameworks; Removal; LAYERED DOUBLE HYDROXIDES; ACTIVATED CARBON; AQUEOUS-SOLUTION; CARBOFURAN PESTICIDES; PHOSPHOTUNGSTIC ACID; CLOFIBRIC ACID; METHYL-ORANGE; BISPHENOL-A; MODEL FUELS; MICROWAVE;
D O I：
10.1016/j.cej.2013.08.110
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Adsorptive removal of 2,4-dichlorophenoxyacetic acid (2,4-D) using a MOF (metal-organic framework), Cr-benzenedicarboxylate (MIL-53), has been studied for the first time to understand the applicability of MOFs in the removal of hazardous herbicides from contaminated water. MIL-53 has a very fast adsorption in one hour and the adsorption capacity of MIL-53 is much higher than that of activated carbon or zeolite (USY). Importantly, the adsorption of 2,4-D over MIL-53 is very favorable especially at low concentrations of 2,4-D. Moreover, the adsorbent can be used several times in adsorptive removal by washing the used adsorbent with a simple solvent. Therefore, MOFs such as MIL-53 can be one of adsorbents that could be used in the adsorptive removal of 2,4-D from contaminated water. Additionally, zeta potential of the adsorbent and the effect of pH and temperature on the adsorption were also investigated, and a plausible adsorption mechanism could be suggested. (C) 2013 Elsevier B.V. All rights reserved.
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页码：99 / 105
页数：7
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