磁性硅藻土的制备及其对刚果红的吸附

doi:10.16039/j.cnki.cn22-1249.2018.07.019

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摘要本文通过修饰Fe₃O₄及修饰FeSiO₃外壳对硅藻土进行改性。采用了XRD衍射、红外光谱分析对改性硅藻土进行了表征。制得的吸附剂（Fe₃O₄@D@FeSiO₃）被成功应用于水中刚果红的吸附。具体研究了吸附时间、温度、pH值、浓度等因素对刚果红染料吸附性能的影响。实验结果表明，制得的功能化的磁性硅藻土复合材料制备简单，价格低廉易于磁性分离，对染料的脱色效率较高。

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	连丽丽
	吕进义
	修超
	张鑫洋
	娄大伟

关键词: 硅藻土 Fe₃O₄ 刚果红吸附

Abstract: A functional magnetic diatomite material was prepared by modification the Fe₃O₄ and FeSiO₃ on the surface. It was characterized by XRD and infrared spectroscopy. Then the magnetic adsorbent (Fe₃O₄@D@FeSiO₃) was used to adsorb Congo red from aqueous solutions. The ability of magnetic diatomite has been carried out as function of contact time, temperature, pH and concentration. The results indicated that the functional magnetic diatomite was simple in synthesis, low in cost. The functional magnetic diatomite is characterized of simple preparation, low-cost raw materiel, convenient magnetic separation, and exhibited excellent uptake capacity for Congo red.

Key words: diatomite Fe3O4 Congo red adsorption

出版日期: 2018-07-25 发布日期: 2018-07-25 整期出版日期: 2018-07-25

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引用本文:

连丽丽, 吕进义, 修超, 张鑫洋, 娄大伟. 磁性硅藻土的制备及其对刚果红的吸附[J]. 吉林化工学院学报, 2018, 35(7): 82-85.
LIAN Li-li, LV Jin-yi, XIU Chao, Zhang Xin-yang, LOU Da-wei. Preparation of the functional magnetic diatomite and its application in Congo red adsorption. Journal of Jilin Institute of Chemical Technology, 2018, 35(7): 82-85.

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https://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2018.07.019 或 https://xuebao.jlict.edu.cn/CN/Y2018/V35/I7/82

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