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Journal of Inorganic Materials

Journal of Inorganic Materials >

2009 , Vol. 24 >Issue 2: 251 - 254

DOI: https://doi.org/10.3724/SP.J.1077.2009.00251

Research Paper

Aqueous Phase Preparation of CdTe Nanorods and its Application
in Recognition of Cu2+ Ions

  • ZHENG Ai-Fang ,
  • CHEN Jin-Long
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  • 1.Department of Life Sciences, Anqing Normal College, Anqing 246011, China; 2. School of Chemistry & Chemical Engineering, Anqing Normal College, Anqing 246011, China

Received date: 2008-07-01

  Revised date: 2008-10-08

  Online published: 2009-03-20

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Abstract

Opticaltunable CdTe nanorods were synthesized in aqueous solution using thioglycoclic acid and L-cysteine as co-stabilizing reagents. CdTe nanorods with dualwavelength emission was appreciated as a novel fluorescent probe for copper ions. Copper ions display a significant quenching effect on the nanorods trap emission at 645nm and no effect on band-edge emission at 535nm. In a slight basic medium, the surface trap emission intensity of nanorods is proportional to the concentration of Cu2+ ion in the range from 0 to 2.8×10-6mol/L, and the corresponding limit of detection is 4.0×10-9mol/L. The mechanism of reaction between CdTe nanorods and Cu2+ ions are discussed in further.

Key words： CdTe nanorods; fluor escence probe; quench; Cu2+ ion

Cite this article

ZHENG Ai-Fang , CHEN Jin-Long . Aqueous Phase Preparation of CdTe Nanorods and its Application
in Recognition of Cu2+ Ions[J]. Journal of Inorganic Materials, 2009 , 24(2) : 251 -254 . DOI: 10.3724/SP.J.1077.2009.00251

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