化工新型材料

化工新型材料 ›› 2021, Vol. 49 ›› Issue (9) : 259-263. DOI: 10.19817/j.cnki.issn 1006-3536.2021.09.056

开发与应用

壳聚糖磁性纳米材料制备工艺优化及表征

作者信息 +

Optimization and characterization of preparation process of chitosan magnetic nanomaterial

Fu Jingyi, Liu Tong, Tang Qilong, Dou Xin, Zhao Jun

Author information +

文章历史 +

Received		Published
2021-04-06		2021-09-20
Issue Date	Revised Date
2021-09-30	2021-04-06

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摘要

以壳聚糖与Fe₃O₄纳米颗粒为原料,采用反向悬浮交联法制备壳聚糖磁性纳米材料,以其对亚硝酸盐吸附率为指标,优化制备工艺。通过响应面试验得到最佳制备条件为合成温度65℃,pH=9.40,Fe₃O₄添加量0.29g,在此条件下得到的壳聚糖磁性纳米材料对亚硝酸盐的吸附率为53.07%。红外光谱分析表明壳聚糖与Fe₃O₄纳米颗粒交联成功。通过磁性对比发现壳聚糖磁性纳米材料具备较强磁性。电镜下观察壳聚糖磁性纳米材料表面多孔隙,与壳聚糖、Fe₃O₄的表面形态存在明显不同。

Abstract

Chitosan and Fe₃O₄ nanoparticles were used as raw materials,and chitosan magnetic nanomaterials were prepared by the reverse suspension crosslinking method.The nitrite adsorption rate was used to optimize the preparation process.The optimal preparation conditions obtained by response surface test were the synthesis temperature of 65℃,pH value of 9.40,and Fe₃O₄ addition amount of 0.29g.Under these conditions,the nanomaterial had an adsorption rate of 53.07% for nitrite.Infrared spectroscopy analysis showed that chitosan and Fe₃O₄ nanoparticles were successfully crosslinked.Through magnetic comparison,it was found that the nanomaterials had strong magnetic properties.The surface pores of the nanomaterials were observed under electron microscope,and the surface morphology of chitosan and Fe₃O₄ was obviously different.

关键词

壳聚糖 / 磁性材料 / 反向悬浮交联法

Key words

chitosan / magnetic material / reverse suspension crosslinking

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壳聚糖磁性纳米材料制备工艺优化及表征[J]. 化工新型材料, 2021, 49(9): 259-263 DOI:10.19817/j.cnki.issn 1006-3536.2021.09.056

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