%0 Journal Article
%T Aqueous Phase Preparation of CdTe Nanorods and its Application in Recognition of Cu2+ Ions
%A ZHENG Ai-Fang
%A CHEN Jin-Long
%J 无机材料学报
%D 2009
%I Science Press
%R 10.3724/sp.j.1077.2009.00251
%X Opticala2tunable CdTe nanorods were synthesized in aqueous solution using thioglycoclic acid and L-cysteine as co-stabilizing reagents. CdTe nanorods with duala2wavelength 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  0-6mol/L, and the corresponding limit of detection is 4.0  0-9mol/L. The mechanism of reaction between CdTe nanorods and Cu2+ ions are discussed in further.
%K CdTe nanorods
%K fluor escence probe
%K quench
%K Cu2+ ion
%U http://www.jim.org.cn/fileup/PDF/20090210.pdf