C-dots/Mn3O4 nanocomposite as an oxidase nanozyme for colorimetric determination of ferrous ion
作者: Fatemeh HonarasaFatemeh PeyraviHesam Amirian
刊名: Journal of the Iranian Chemical Society, 2020, Vol.17 (3), pp.507-512
来源数据库: Springer Nature Journal
DOI: 10.1007/s13738-019-01787-z
关键词: Manganese oxide/C-dotsNanocompositeNanozymeOxidaseFerrous ion
原始语种摘要: At first, C-dots/manganese oxide nanocomposite was synthesized chemically. The presence of MnO nanostructures and C-dots in the synthesized nanocomposite was confirmed by using of XRD, EDS, FTIR and TEM. The proposed method for synthesis is easy and cheap. The MnO/C-dots nanocomposite shows oxidase-like activity, which is higher than oxidase-like activity of MnO nanoparticles. In this manner, detection of ferrous ion was possible by using of a competitive reaction between 3,3′,5,5′-tetramethylbenzidine and Fe ion in the presence of the synthesized nanocomposite. So, a sensitive and selective colorimetric sensor for determination of Fe ion was introduced. The linear range and detection limit for determination of Fe ion were obtained as 0.03–0.83 μM and 0.03 μM, respectively.
全文获取路径: Springer Nature  (合作)
影响因子:1.467 (2012)

  • determination 测定
  • colorimetric 比色的
  • oxidase 氧化酶
  • ferrous 亚铁的
  • activity 活度
  • chemically 在化学性质上
  • reaction 反酌
  • detection 探测
  • cheap 便宜的
  • proposed 建议的