Nano Express

Nanoscale Research Letters

, Volume 4, Issue 4, pp 335-340

Open Access This content is freely available online to anyone, anywhere at any time.

Quinoline Group Modified Carbon Nanotubes for the Detection of Zinc Ions

  • Zhengping DongAffiliated withCollege of Chemistry and Chemical Engineering, Lanzhou University
  • , Bin YangAffiliated withCollege of Chemistry and Chemical Engineering, Lanzhou University
  • , Jun JinAffiliated withCollege of Chemistry and Chemical Engineering, Lanzhou University
  • , Jing LiAffiliated withCollege of Chemistry and Chemical Engineering, Lanzhou University
  • , Hongwei KangAffiliated withCollege of Chemistry and Chemical Engineering, Lanzhou University
  • , Xing ZhongAffiliated withCollege of Chemistry and Chemical Engineering, Lanzhou University
  • , Rong LiAffiliated withCollege of Chemistry and Chemical Engineering, Lanzhou University
  • , Jiantai MaAffiliated withCollege of Chemistry and Chemical Engineering, Lanzhou University Email author 

Abstract

Carbon nanotubes (CNTs) were covalently modified by fluorescence ligand (glycine-N-8-quinolylamide) and formed a hybrid material which could be used as a selective probe for metal ions detection. The anchoring to the surface of the CNTs was carried out by the reaction between the precursor and the carboxyl groups available on the surface of the support. Fourier transform infrared spectroscopy (FTIR) and Thermogravimetric analysis (TGA) unambiguously proved the existence of covalent bonds between CNTs and functional ligands. Fluorescence characterization shows that the obtained organic–inorganic hybrid composite is highly selective and sensitive (0.2 μM) to Zn(II) detection.

Keywords

Carbon nanotubes Glycine-N-8-quinolylamide Zn(II) Fluorescent material Detection