化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (11) : 234-237.

开发与应用

磁性聚苯胺/腐殖酸复合微胶囊的制备及其对水中Cr(Ⅵ)吸附性能研究

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Preparation of magnetic polyaniline/humic acid composite microcapsule and its adsorption for Cr(Ⅵ) in water

Yang Fan, Chen Jun, Wu Si, Wang Shengda

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Received		Published
2017-06-21		2018-11-20
Issue Date	Revised Date
2018-12-04	2017-06-21

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摘要

以腐殖酸胶体粒子稳定的Pickering乳液液滴为模板,通过化学氧化聚合制备了磁性聚苯胺/腐殖酸复合材料(PANI/HA/Fe₃O₄)。采用扫描电镜、红外光谱和X射线衍射等手段对复合材料进行表征分析,并考察了其对水中Cr(Ⅵ)的吸附性能。结果表明:PANI/HA/Fe₃O₄对Cr(Ⅵ)表现出优异的吸附性能,25℃下最大吸附容量为210.75mg/g,且其吸附动力学和吸附等温线分别符合准二级动力学模型和Langmuir等温模型。

Abstract

Magnetic polyaniline/humic acid (PANI/HA/Fe₃O₄) composite was prepared by chemical oxidative polymerization with the Pickering emulsion droplets stabilized by humic acid colloidal particles as template.The composite material was characterized by scanning electron microscopy,infrared spectroscopy and X ray diffraction.And its adsorption properties for Cr(Ⅵ) in water were investigated.The results demonstrated that PANI/HA/Fe₃O₄ exhibited excellent adsorption performance for Cr(Ⅵ) ions and the maximum adsorption capacity was 210.75mg/g at 25℃.The adsorption kinetics and adsorption isotherm followed the pseudo-second-order model and Langmuir isothermal model,respectively.

关键词

吸附 / 聚苯胺 / 腐殖酸 / Fe₃O₄ / Cr(Ⅵ) / Pickering乳液

Key words

adsorption / polyaniline / humic acid / Fe₃O₄ / Cr(Ⅵ) / Pickering emulsion

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磁性聚苯胺/腐殖酸复合微胶囊的制备及其对水中Cr(Ⅵ)吸附性能研究[J]. 化工新型材料, 2018, 46(11): 234-237 DOI:

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