Preparation of Sodium Alginate/TiO<sub>2</sub> Nanofiber Membrane and Its Adsorption Capacity for Cu<sup>2+</sup> Ions

Hai-zhen YANG; Zhi-jiang CAI; Chuang MA; Ze-lin ZHOU; Su-jie WEI; Yan-fei YANG

doi:10.14028/j.cnki.1003-3726.2022.11.010

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Preparation of Sodium Alginate/TiO₂ Nanofiber Membrane and Its Adsorption Capacity for Cu²⁺ Ions

更新时间：2022-09-09

- Preparation of Sodium Alginate/TiO₂ Nanofiber Membrane and Its Adsorption Capacity for Cu²⁺ Ions
- Polymer Bulletin Vol. 35, Issue 11, Pages: 97-105(2022)
- 作者机构：
  
  1.中原工学院纺织学院,郑州 450007
  2.天津工业大学纺织科学与工程学院,天津 300387
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2022.11.010
  CLC：
- Published：20 November 2022，
  
  Received：08 December 2021，
  
  Revised：28 February 2022，
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Hai-zhen YANG, Zhi-jiang CAI, Chuang MA, Ze-lin ZHOU, Su-jie WEI, Yan-fei YANG. Preparation of Sodium Alginate/TiO₂ Nanofiber Membrane and Its Adsorption Capacity for Cu²⁺ Ions. [J]. Polymer Bulletin 35(11):97-105(2022)
DOI：

Hai-zhen YANG, Zhi-jiang CAI, Chuang MA, Ze-lin ZHOU, Su-jie WEI, Yan-fei YANG. Preparation of Sodium Alginate/TiO₂ Nanofiber Membrane and Its Adsorption Capacity for Cu²⁺ Ions. [J]. Polymer Bulletin 35(11):97-105(2022) DOI： 10.14028/j.cnki.1003-3726.2022.11.010.

摘要

采用静电纺丝技术制备了海藻酸钠(SA)/二氧化钛(TiO

)复合纳米纤维膜

并将其应用于水体中重金属离子Cu

的吸附。通过扫描电子显微镜(SEM)、傅里叶红外光谱(FT-IR)、X射线衍射仪(XRD)、接触角、力学性能等测试对复合纳米纤维膜进行了表征。结果表明

所制得的SA 纳米纤维膜表面光滑

纤维呈三维杂乱排列。加入TiO

后

纳米纤维的平均直径下降

亲水性能得到较大改善

拉伸强度及断裂伸长率分别为 9.56 MPa和15.46%。Cu

吸附结果表明

SA/TiO

纳米纤维膜对单一组分Cu

的饱和吸附可达76.99 mg/g。其吸附过程可以用Langmuir和Freundlich吸附模型来描述

从相关系数来看

SA/TiO

纳米纤维对Cu

的吸附过程更加符合Freundlich模型。

Abstract

Sodium alginate (SA)/titanium dioxide (TiO

) composite nanofiber membrane was prepared by electrospinning technology and applied in the adsorption of heavy metal ion Cu

in water. The composite nanofiber membranes were characterized by scanning electron microscopy (SEM)

Fourier transform infrared spectroscopy (FT-IR)

X-ray diffraction (XRD)

contact angle and mechanical properties. The results show that the surface of the composite nanofiber film is smooth

and the fibers are randomly arranged in three dimensions. After adding TiO

the average diameter of nanofibers decreased and the hydrophilicity was greatly improved. The tensile strength and elongation at break are 9.56 MPa and 15.46%

respectively. The adsorption results showed that the saturated adsorption of SA/TiO

nanofiber membrane for a single component of Cu

could reach 76.99 mg/g. The adsorption process can be described by Langmuir and Freundlich adsorption models. From the correlation coefficient

the adsorption process of SA/TiO

nanofibers for Cu

is more consistent with Freundlich model.

关键词

静电纺丝海藻酸钠TiO2吸附性能Cu2+

Keywords

ElectrospinningSodium alginateTiO2Adsorption performanceCu2+

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Related Institution

School of Materials Scince and Technology, Tianjin Polytechnic University

Key Laboratory of Advanced Textile Composite Materials of Ministry of Education, Tianjin Polytechnic University

School of Textiles , Tianjin Polytechnic University

Xi’an Key Laboratory of Advanced Performance Materials and Polymers, Shaanxi University of Science and Technology

College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology

⁰

Preparation of Sodium Alginate/TiO2 Nanofiber Membrane and Its Adsorption Capacity for Cu2+ Ions

DOI：10.14028/j.cnki.1003-3726.2022.11.010

摘要

Abstract

关键词

Keywords

references

Preparation of Sodium Alginate/TiO₂ Nanofiber Membrane and Its Adsorption Capacity for Cu²⁺ Ions