Adsorption mechanism of polyethyleneimine modified magnetic core-shell Fe3O4@SiO2 nanoparticles for anionic dye removal

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成果类型：

期刊论文

作者：

Huang, Binyan;Liu, Yunguo*;Li, Bin;Wang, Hui;Zeng, Guangming

通讯作者：

Liu, Yunguo

作者机构：

[Huang, Binyan] Hengyang Normal Univ, Coll Life Sci & Environm, Hengyang 421008, Peoples R China.

[Huang, Binyan] Hengyang Normal Univ, Inst Biotechnol Livestock, Hengyang 421008, Peoples R China.

[Liu, Yunguo; Zeng, Guangming] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.

[Liu, Yunguo; Zeng, Guangming] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.

[Li, Bin] Changsha Environm Protect Agcy, Changsha 410001, Hunan, Peoples R China.

通讯机构：

[Liu, Yunguo] H

Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.

Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.

语种：

英文

期刊：

RSC Advances

ISSN：

2046-2069

年：

2019

卷：

期：

页码：

32462-32471

DOI：

10.1039/c9ra06299h

基金类别：

Natural Science Foundation of Hunan Province, ChinaNatural Science Foundation of Hunan Province [2019JJ50015]; Project of Science Foundation of Hengyang Normal University, China [18D18]; Aid Program of Research Center for Environment Education of Hunan Province, China [HJ18K04]

机构署名：

本校为第一机构

院系归属：

生命科学与环境学院

摘要：

In this paper, polyethyleneimine modified magnetic core-shell Fe3O4@SiO2 nanoparticles (Fe3O4@SiO2/PEI) were innovatively synthesized and investigated using various techniques such as TEM, TGA, FT-IR, XRD, VSM and XPS. The adsorption performance based on the removal of the anionic dyes Methyl orange and Congo red from aqueous solution was studied systematically. The results showed that the adsorption rate of anionic dyes MO and CR increased rapidly then decreased gradually as the pH increased, the adsorption capacity of Fe3O4@SiO2/PEI for MO was better than that for CR, and the maximum adsorpt...

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Adsorption mechanism of polyethyleneimine modified magnetic core-shell Fe3O4@SiO2 nanoparticles for anionic dye removal

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