静电纺聚丙烯腈/聚吡咯/硫化铜复合纳米纤维的制备及类过氧化物酶催化性质研究
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- 英文论文题名：Synthesis and Peroxidase-Like Properties of Electrospun Polyacrylonitrile/Polypyrrole/Cu_xS Composites
- 论文作者：陈思晖 ; 朱云 ; 迟茂强 ; 杨泽洲 ; 卢晓峰 ; 王策
- 英文论文作者：Sihui Chen ; Yun Zhu ; Maoqiang Chi ; ZeZhou Yang ; Xiaofeng Lu ; Ce Wang ; Alan G.MacDiarmid Institute ; College of Chemistry ; Jilin University
- 年：2016
- 作者机构：吉林大学化学学院麦克德尔米德实验室;
- 论文关键词：静电纺丝 ; 硫化铜 ; 聚吡咯 ; 类过氧化物酶 ; 催化
- 会议召开时间：2016-11-18
- 会议录名称：中国第四届静电纺丝大会（CICE 2016）摘要集
- 语种：中文
- 分类号：TQ340.64;O643.36
- 学会代码：ZGNM
- 会议名称：中国第四届静电纺丝大会(CICE 2016)
- 会议地点：中国北京
- 主办单位：中国复合材料学会超细纤维材料分会（筹）
- 学会名称：中关村科创纳米技术创新研究会
- 页数：1
- 文件大小：550k
- 原文格式：D
- 会议级别：全国
摘要
作为一种天然催化剂,酶因其良好的选择性和较高的催化效率引起了人们的广泛关注。然而,天然酶在实际催化应用中常常受到存储、运输等方面的限制。因此,人们一直致力于开发出能与天然酶的催化性能相媲美的人工模拟酶。目前,许多种材料都被报导具有本征的类酶催化性质,例如贵金属、金属氧化物纳米颗粒、碳纳米材料等。本文通过静电纺丝方法制备聚丙烯腈纳米纤维,该纤维尺寸均一,比表面积较大。通过表面修饰以及离子吸附过程在其表面吸附Cu~(2+),最终以一步水热反应使吡咯单体在其表面聚合,制备出静电纺聚丙烯腈/聚吡咯/硫化铜复合纳米纤维材料。我们通过其对3,3’,5,5’-四甲基联苯胺在H_2O_2存在下的催化氧化性质实验,来对该复合材料的类过氧化物酶催化性质进行探究。另外,静电纺聚丙烯腈/聚吡咯/硫化铜复合纳米纤维材料可以实现对H_2O_2的进行定量检测,从而在生物传感、化学工业、环境检测等领域具有良好发展前景。
As a kind of natural catalyst, enzymes have attracted wide attention for researchers due to their excellent efficiency and selectivity. However, natural enzymatic catalyst would face obstacles of storage and transportation when it was put into application. Therefore, lots of researchers devote to fabricating artificial enzymes. Compared with natural enzymes, the artificial ones show the similar catalytic performance and the advantages of easy synthesis and purification. Herein, we fabricate polyacrylonitrile(PAN) nanofibers via an electrospinning technique, and then, we change the hydrophilic character of the electrospun PAN fiber via the surface treatment. Finally, we fabricate PAN/polypyrrole/CuxS composites by a one-pot hydrothermal reaction. The resulting PAN/polypyrrole/CuxS composites exhibit peroxidase-like activity toward the oxidation of 3,3',5,5'-tetramethylbenzidine(TMB) in the presence of H_2O_2, which can be used to determine the concentration of H_2O_2 quantitatively. This work affords the promising applications of the prepared PAN/polypyrrole/CuxS composites in biosensors, chemical industry and environmental science.
As a kind of natural catalyst, enzymes have attracted wide attention for researchers due to their excellent efficiency and selectivity. However, natural enzymatic catalyst would face obstacles of storage and transportation when it was put into application. Therefore, lots of researchers devote to fabricating artificial enzymes. Compared with natural enzymes, the artificial ones show the similar catalytic performance and the advantages of easy synthesis and purification. Herein, we fabricate polyacrylonitrile(PAN) nanofibers via an electrospinning technique, and then, we change the hydrophilic character of the electrospun PAN fiber via the surface treatment. Finally, we fabricate PAN/polypyrrole/CuxS composites by a one-pot hydrothermal reaction. The resulting PAN/polypyrrole/CuxS composites exhibit peroxidase-like activity toward the oxidation of 3,3',5,5'-tetramethylbenzidine(TMB) in the presence of H_2O_2, which can be used to determine the concentration of H_2O_2 quantitatively. This work affords the promising applications of the prepared PAN/polypyrrole/CuxS composites in biosensors, chemical industry and environmental science.
引文
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[2]Jiang,Y.;Nie,G.;Chi,M.;et al.RSC Adv.2016,6:31107
[2]Jiang,Y.;Nie,G.;Chi,M.;et al.RSC Adv.2016,6:31107