标题: One-step electrochemically induced counterion exchange to construct free-standing carboxylated cellulose nanofiber/metal composite hydrogels

作者: Guo, XJ (Guo, Xiaojia); Gao, HM (Gao, Huimin); Zhang, JX (Zhang, Jingxian); Zhang, LN (Zhang, Lina); Shi, XW (Shi, Xiaowen); Du, YM (Du, Yumin)

来源出版物: CARBOHYDRATE POLYMERS  卷: 254  文献号: 117464  DOI: 10.1016/j.carbpol.2020.117464  出版年: FEB 15 2021  

摘要: The fabrication of polymeric composite hydrogel with hierarchical structure in a simple, controllable, and straightforward process poses great importance for manufacturing nanomaterials and subsequent applications. Herein, we report a one-step and template-free counterion exchange method to construct free-standing carboxylated cellulose nanofiber composite hydrogels. Metal ions were electrochemically and locally released from the electrode and chelated with carboxylated cellulose nanofibers, leading to the in-situ formation of composite hydrogels. The properties of composite hydrogels can be easily programmed by the type of electrode, current density, and electrodeposited suspension. Significantly, the composited hydrogels exhibited interconnected nanoporous structure, enhanced thermal degradation, improved mechanical strength and antibacterial activity. The results suggest great potential of anodic electrodeposition to fabricate nanofiber/metal composite hydrogels.

入藏号: WOS:000604618000005

语言: English

文献类型: Article

作者关键词: Carboxylated cellulose nanofiber; Electrochemical; Hydrogel; Metal ions

地址: [Guo, Xiaojia; Zhang, Jingxian; Shi, Xiaowen; Du, Yumin] Wuhan Univ, Hubei Engn Ctr Nat Polymers Based Med Mat, Sch Resource & Environm Sci, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430079, Peoples R China.

[Gao, Huimin; Zhang, Lina] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China.

[Gao, Huimin] Zhejiang Ocean Univ, Marine Sci & Technol Coll, Zhoushan 316022, Peoples R China.

通讯作者地址: Shi, XW; Du, YM (通讯作者)，Wuhan Univ, Hubei Engn Ctr Nat Polymers Based Med Mat, Sch Resource & Environm Sci, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430079, Peoples R China.

电子邮件地址: shixw@whu.edu.cn; Duyumin@whu.edu.cn

影响因子：7.182