Carbon disulfide-modified magnetic ion-imprinted chitosan-Fe(III): A novel adsorbent for simultaneous removal of tetracycline and cadmium
Carbon disulfide-modified magnetic ion-imprinted chitosan-Fe(III): A novel adsorbent for simultaneous removal of tetracycline and cadmium
复制标题
二硫化碳修饰的磁性离子印迹壳聚糖-Fe(III)：一种同时去除四环素和镉的新型吸附剂
DOI：
10.1016/j.carbpol.2016.08.038
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发表时间：
2017-01-02
影响因子：
11.2
通讯作者：
Zeng, Qingru
中科院分区：
文献类型：
--
作者：
Chen, Anwei;Shang, Cui;Zeng, Qingru
一种新型的二硫化碳修饰的磁性离子印迹壳聚糖-Fe（III）复合物，制备了MMIC-Fe（III）复合吸附剂，用于同时去除四环素（TC）和Cd（II）。该吸附剂对TC和Cd（II）的吸附动力学速度快，吸附容量高，重复使用性好，适用于真实的水样。动力学研究表明，吸附进行根据伪二级模型。吸附等温线符合Langmuir模型，最大吸附量分别为516.29和194.31 mg/g。TC和Cd（II）吸附的协同效应可能是由于在吸附质和吸附剂之间形成了桥联的TC-Cd（II）络合物。这些特性表明MMIC-Fe（III）在同时去除TC和Cd（II）方面具有潜在的应用价值，并可能为协同去除水中抗生素和重金属提供一些信息。(C)2016爱思唯尔有限公司版权所有
A novel composite of carbon disulfide-modified magnetic ion-imprinted chitosan-Fe(III), i.e., MMIC-Fe(III) composite, was prepared as an efficient adsorbent for the simultaneous removal of tetracycline (TC) and Cd(II). This adsorbent showed excellent performance in removing TC and Cd(II) due to its rapid kinetics, high adsorption capacity, good reusability, and was well suited for use with real water samples. Kinetics studies demonstrated that the adsorption proceeded according to a pseudo-second order model. The adsorption isotherms were well described by the Langmuir model, with maximum adsorption capacity for TC and Cd(II) being 516.29 and 194.31 mg/g, respectively. The synergistic effect of TC and Cd(II) adsorption might be due to the formation of TC-Cd(II) complex bridging the adsorbate and adsorbent. These properties demonstrate the potential application of MMIC-Fe(III) for the simultaneous removal of TC and Cd(II), and may provide some information for the synergistic removal of antibiotics and heavy metals from aquatic environments. (C) 2016 Elsevier Ltd. All rights reserved.