Preparation and properties of spherical chitosan hydrogel crosslinked with L-cystine for Cu<sup>2+</sup> adsorption

WANG Sisi; YING Xiaoguang; ZHANG Weiying; LI Xiao

doi:10.3969/j.issn.0438-1157.2013.09.048

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Preparation and properties of spherical chitosan hydrogel crosslinked with L-cystine for Cu²⁺ adsorption

更新时间：2025-12-10

- Preparation and properties of spherical chitosan hydrogel crosslinked with L-cystine for Cu²⁺ adsorption
- CIESC Journal Issue 9, Pages: 3437-3445(2013)
- 作者机构：
  
  福州大学化学化工学院,福建,福州,350108
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.09.048
  CLC： 636.1+1
- Online First：05 September 2013，
  
  Published：05 September 2013
- 稿件说明：
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WANG Sisi, YING Xiaoguang, ZHANG Weiying, et al. Preparation and properties of spherical chitosan hydrogel crosslinked with L-cystine for Cu²⁺ adsorption[J]. CIESC Journal, 2013, (9): 3437-3445. DOI: 10.3969/j.issn.0438-1157.2013.09.048.
DOI：

WANG Sisi, YING Xiaoguang, ZHANG Weiying, et al. Preparation and properties of spherical chitosan hydrogel crosslinked with L-cystine for Cu²⁺ adsorption[J]. CIESC Journal, 2013, (9): 3437-3445. DOI: 10.3969/j.issn.0438-1157.2013.09.048. DOI：

摘要

以L-胱氨酸(L-CYS)作为交联剂

利用滴液成球法制备交联球形壳聚糖凝胶

用傅里叶红外光谱、13C NMR、扫描电镜对产物进行了表征

结果表明L-CYS与壳聚糖发生了酰胺化及酯化反应

并且制得的凝胶内部存在着疏松的网络状大孔。交联剂L-CYS中的二硫键有助于二价铜离子的吸附。以L-CYS交联得到的球形壳聚糖凝胶对Cu2+的吸附量达到了72.96 mg·g-1

接近于未交联的球形壳聚糖凝胶的吸附量

而耐溶胀性优于未交联的壳聚糖凝胶。

Abstract

Spherical chitosan hydrogel crosslinked with L-cystine(L-CYS)was synthesized by the dropping method.Chemical structure characterization of the product was performed with FTIR

13C NMR and SEM.The results showed that chitosan was amidated and esterified with L-cystine

resulting in internal porous structure.The disulfide bond on L-CYS contributed to Cu2+ adsorption.The adsorption capacity for Cu2+ reached 72.96 mg·g-1

which was close to that of the uncrosslinked chitosan hydrogel. But the anti-swelling property was better than the latter.

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Preparation and properties of spherical chitosan hydrogel crosslinked with L-cystine for Cu2+ adsorption

DOI：10.3969/j.issn.0438-1157.2013.09.048

摘要

Abstract

关键词

Keywords

references

Preparation and properties of spherical chitosan hydrogel crosslinked with L-cystine for Cu²⁺ adsorption