• 文献标题:   Multiwalled carbon nanotube/reduced graphene oxide-decorated 8-cyclodextrin polymer microflowers for simultaneous detection of antioxidants
  • 文献类型:   Article
  • 作  者:   NEWAIR EF, BAKR A, ELSAGHER HM, KHAIRY M
  • 作者关键词:   3d microflower, 8cyclodextrin electropolymerization, nanocomposite, phenolic acid, antioxidant
  • 出版物名称:   MATERIALS CHEMISTRY PHYSICS
  • ISSN:   0254-0584 EI 1879-3312
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1016/j.matchemphys.2023.127363 EA JAN 2023
  • 出版年:   2023

▎ 摘  要

Three-dimensional microflowers of 8-cyclodextrin (8 -CD) polymer were synthesized by facile electro-polymerization process on a glassy carbon electrode (GCE) modified with multi-walled carbon nanotubes (MWCNT) and reduced graphene oxide (rGO) nanocomposite. The novel 8-CD/MWCNTs/rGO nanocomposite was explored for simultaneous determination of gallic (GA) and protocatechuic (PA) acids. Significantly, the engineered nanocomposite with 3D microflowers morphology showed not only a promising electrochemical catalytic activity but also a considerable peak potential separation enabled simultaneous determination of GA and PA. It was found, the peak heights of GA and PA correlated linearly with the concentration in the range of 9.8-110 mu M with detection limits of 3.74 and 8.36 mu M, respectively. The nanocomposite electrode exhibited high sensitivity and long-term stability, which offered simultaneous determination of GA and PA in mango fruit with a robust functionality.