Porous Spherical Cellulose Carrier Modified with Polyethyleneimine and Its Adsorption for Cr(Ⅲ) and Fe(Ⅲ) from Aqueous Solutions

Zhijian He; Hang Song; Yannan Cui; Weixia Zhu; Kaifeng Du; Shun Yao

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Porous Spherical Cellulose Carrier Modified with Polyethyleneimine and Its Adsorption for Cr(Ⅲ) and Fe(Ⅲ) from Aqueous Solutions

分离科学与工程 | Updated：2026-01-06

- Porous Spherical Cellulose Carrier Modified with Polyethyleneimine and Its Adsorption for Cr(Ⅲ) and Fe(Ⅲ) from Aqueous Solutions
- Porous Spherical Cellulose Carrier Modified with Polyethyleneimine and Its Adsorption for Cr(Ⅲ) and Fe(Ⅲ) from Aqueous Solutions
- 中国化学工程学报（英文版） 2014年22卷第9期页码：984-990
- Affiliations：
  
  1. School of Chemistry and Chemical Engineering, Mianyang Normal University,Mianyang,China,621000
  2. Department of Pharmaceutical and Biological Engineering, Sichuan University,Chengdu,China,610065
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2014
- Accepted：
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Zhijian He, Hang Song, Yannan Cui, 等. Porous Spherical Cellulose Carrier Modified with Polyethyleneimine and Its Adsorption for Cr(Ⅲ) and Fe(Ⅲ) from Aqueous Solutions[J]. 中国化学工程学报（英文版）, 2014,22(9):984-990.

Zhijian He, Hang Song, Yannan Cui, Weixia Zhu, Kaifeng Du, Shun Yao. Porous Spherical Cellulose Carrier Modified with Polyethyleneimine and Its Adsorption for Cr(Ⅲ) and Fe(Ⅲ) from Aqueous Solutions[J]. , 2014, 22(9): 984-990.
Zhijian He, Hang Song, Yannan Cui, 等. Porous Spherical Cellulose Carrier Modified with Polyethyleneimine and Its Adsorption for Cr(Ⅲ) and Fe(Ⅲ) from Aqueous Solutions[J]. 中国化学工程学报（英文版）, 2014,22(9):984-990. DOI：

Zhijian He, Hang Song, Yannan Cui, Weixia Zhu, Kaifeng Du, Shun Yao. Porous Spherical Cellulose Carrier Modified with Polyethyleneimine and Its Adsorption for Cr(Ⅲ) and Fe(Ⅲ) from Aqueous Solutions[J]. , 2014, 22(9): 984-990. DOI：

摘要

Abstract

An efficient porous spherical polyethyleneimine-cellulose (PEI-cell) absorbent was synthesized and characterized. The main influencing factors and adsorption mechanism for two typical metal ions

and Fe

were investigated. The adsorption performance primarily depends on the initial concentration of metal ions

pH value and temperature

and the chelation action between N atoms of PEI-cell and metal ions plays an important role. Under dynamic adsorption conditions

the saturation adsorption of polyethyleneimine-cellulose is 83.98 mg·g

-1

for Cr(Ⅲ) and 377.19 mg·g

-1

for Fe(Ⅲ)

higher than reported data and that of unmodified cellulose. The adsorption can be well described with second-order kinetic equation and Freundlich adsorption model

and Δ

of the adsorption are all negative. With 5% HCl as eluent

the elution ratio of Cr(Ⅲ) and Fe(Ⅲ) achieved 99.88% and 97.74% at 313 K

respectively. After the porous PEI-cell was reused 6 times

it still presented satisfactory adsorption performance. Above results show the advantages such as easily-acquired raw material

high efficiency

stable recycling performance and biodegradability.

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