Preparation of Poly(acrylic acid)/Graphene Oxide-Chitosan Composite Membrane and the Adsorption and Separation on Dyes

GUO Yong-mei; QIU Yu

doi:10.14028/j.cnki.1003-3726.2023.12.013

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Preparation of Poly(acrylic acid)/Graphene Oxide-Chitosan Composite Membrane and the Adsorption and Separation on Dyes

更新时间：2023-11-23

- Preparation of Poly(acrylic acid)/Graphene Oxide-Chitosan Composite Membrane and the Adsorption and Separation on Dyes
- Polymer Bulletin Vol. 36, Issue 12, Pages: 1725-1733(2023)
- 作者机构：
  
  1.闽江学院　福建省新型功能性纺织纤维及材料重点实验室，福州　350108
  2.福建省金皇环保科技有限公司，福州　350108
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2023.12.013
  CLC：
- Published：20 December 2023，
  
  Received：17 July 2023，
  
  Revised：21 August 2023，
扫描看全文
GUO Yong-mei, QIU Yu. Preparation of Poly(acrylic acid)/Graphene Oxide-Chitosan Composite Membrane and the Adsorption and Separation on Dyes. [J]. Polymer Bulletin 36(12):1725-1733(2023)
DOI：

GUO Yong-mei, QIU Yu. Preparation of Poly(acrylic acid)/Graphene Oxide-Chitosan Composite Membrane and the Adsorption and Separation on Dyes. [J]. Polymer Bulletin 36(12):1725-1733(2023) DOI： 10.14028/j.cnki.1003-3726.2023.12.013.

摘要

利用层层组装技术

将聚丙烯酸(PAA)与氧化石墨烯-壳聚糖(GO-CS)复合物沉积到聚丙烯(PP)微孔膜表面制备聚丙烯酸/氧化石墨烯-壳聚糖(PAA/GO-CS)

复合膜

并考察其对亚甲基蓝和刚果红吸附分离效果。利用红外光谱、热分析仪和扫描电子显微镜进行表征

结果表明

通过静电力和氢键相互作用

GO和CS成功复合

制备的(PAA/GO-CS)

复合膜具有稳定的热化学性质

复合膜的表面形貌和孔隙可以通过组装层数进行调控。研究发现

(PAA/GO-CS)

复合膜对亚甲基蓝和刚果红的渗透率随组装层数增加而下降

截留率随组装层数增加呈上升趋势

复合膜对带正电荷的亚甲基蓝具有优先选择吸附性。当组装层数达20层时

(PAA/GO-CS)

复合膜对亚甲基蓝的渗透率为2761.3 L·m

-2

·h

-1

·bar

-1

截留率91%

吸附率39%

对刚果红的渗透率为3068 L·m

-2

·h

-1

·bar

-1

截留率43%

吸附率33%。

Abstract

Poly(acrylic acid) (PAA) and graphene oxide-chitosan (GO-CS) composites were deposited on the surface of polypropylene (PP) microporous membrane to prepare poly(acrylic acid)/graphene oxide-chitosan (PAA/GO-CS)

composite membrane by layer-by-layer assembly technology. The adsorption and separation effect of (PAA/GO-CS)

composite membrane for methylene blue and congo red in aqueous solution was investigated. The structures of GO-CS complex and (PAA/GO-CS)

composite membrane were characterized by infrared spectroscopy

thermogravimetric analysis and scanning electron microscope. Results show that (PAA/GO-CS)

composite membrane was successfully prepared and had stable thermochemical properties. The surface morphology and porosity of the composite membrane can be controlled by the number of assembled layers. The permeability of the composite membrane to methylene blue and congo red decreased with the increase of the number of assembled layers

and the interception rate increased with the increase of the number of assembled layers. The permeability of the composite membrane for methylene blue was 2761.3 L·m

-2

·h

-1

·bar

-1

the retention rate was 91%

the adsorption rate was 39%. The permeability for congo red was 3068 L·m

-2

·h

-1

·bar

-1

the retention rate was 43%

the adsorption rate was 33% when assembled to 20 layers. The composite film has preferential adsorption for positively charged cationic dyes.

关键词

氧化石墨烯壳聚糖复合膜吸附分离染料

Keywords

Graphene oxideChitosanComposite membranesAdsorption and separationDye

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