磁性离子交换树脂的制备及其对Cl–吸附性能

doi:10.16085/j.issn.1000-6613.2017-1737

化工进展 ›› 2018, Vol. 37 ›› Issue (08): 3051-3055.DOI: 10.16085/j.issn.1000-6613.2017-1737

磁性离子交换树脂的制备及其对Cl^–吸附性能

张玉玲, 李旭东, 张利平, 王倩, 康少鑫

华北电力大学环境科学与工程系, 河北保定 071003

收稿日期:2017-08-17 修回日期:2018-02-10 出版日期:2018-08-05 发布日期:2018-08-05
通讯作者: 张玉玲(1977-),女,博士,副教授,研究方向为工业水处理技术及理论研究。
作者简介:张玉玲(1977-),女,博士,副教授,研究方向为工业水处理技术及理论研究。E-mail:zhangyuling_hit@163.com。
基金资助:
国家十三五水专项子课题（2017ZX07101001-07）、河北省自然科学基金（E2016502097）及国家自然科学基金青年基金（51308211）项目。

Preparation of magnetic ion exchange resin and its adsorption performance to Cl^-

ZHANG Yuling, LI Xudong, ZHANG Liping, WANG Qian, KANG Shaoxin

Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, Hebei, China

Received:2017-08-17 Revised:2018-02-10 Online:2018-08-05 Published:2018-08-05

摘要/Abstract

摘要： 采用共沉淀法，以苯乙烯型强碱性离子交换树脂为基体，成功制备了磁性离子交换树脂。分别采用扫描电子显微镜（SEM）、X射线衍射（XRD）和振动样品磁强计（VSM）对磁性离子交换树脂的表观形貌、磁性组分和磁性能进行了表征。研究了吸附时间、温度、pH和竞争离子4个因素对磁性离子交换树脂吸附废水中Cl^–性能的影响。结果表明：磁性离子交换树脂表面粗糙，磁性组分为Fe₃O₄，比饱和磁化强度为2.23emu/g，具有超顺磁性。吸附时间、温度和pH对磁性离子交换树脂吸附Cl^–的影响较大，当吸附时间为3h、温度为30℃、pH=3时，磁性离子交换树脂的吸附量最大，达到140.43mg/g；当废水中含有SO₄^2–或NO₃^–等竞争离子时，磁性离子交换树脂的抗干扰能力增强，对Cl^–的吸附选择性也有所提高。

关键词: 磁性离子交换树脂, 制备, 废水, 氯离子, 吸附, 选择性

Abstract: Magnetic ion exchange resin (MIER) was successfully prepared using styrene type strongly alkaline ion exchange resin as matrix and with the method of co-precipitation. The surface morphology, magnetic component and magnetic property of MIER were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). The effects of adsorption time, temperature, pH and competitive ions on the adsorption performance of MIER to Cl^- in waste water were studied. The results showed that the MIER's surface was rough, the magnetic component was Fe₃O₄, and the saturation magnetization was about 2.23emu/g. Adsorption time, temperature and pH all had great influence on the adsorption performance. When the adsorption time was 3h, temperature was 30℃, and pH=3, the saturated adsorption capacity of MIER could reach 140.43mg/g. The anti-interference ability and the adsorption selectivity to Cl^- were enhanced in the wastewater containing competing ions such as SO₄^2- or NO₃^-.

Key words: magnetic ion exchange resin, preparation, wastewater, chloride, adsorption, selectivity

中图分类号:

TQ325.2

张玉玲, 李旭东, 张利平, 王倩, 康少鑫. 磁性离子交换树脂的制备及其对Cl^–吸附性能[J]. 化工进展, 2018, 37(08): 3051-3055.

ZHANG Yuling, LI Xudong, ZHANG Liping, WANG Qian, KANG Shaoxin. Preparation of magnetic ion exchange resin and its adsorption performance to Cl^-[J]. Chemical Industry and Engineering Progress, 2018, 37(08): 3051-3055.

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磁性离子交换树脂的制备及其对Cl^–吸附性能

Preparation of magnetic ion exchange resin and its adsorption performance to Cl^-

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磁性离子交换树脂的制备及其对Cl–吸附性能

Preparation of magnetic ion exchange resin and its adsorption performance to Cl-

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磁性离子交换树脂的制备及其对Cl^–吸附性能

Preparation of magnetic ion exchange resin and its adsorption performance to Cl^-