Figure 8

(a) Effect of pH on the fluorescence intensity of TGA@CdS QDs in the absence and the presence of 50 μM Co2+. (b) The fluorescence quenching in the presence of 50 μM Co2+.

(a) Effect of pH on the fluorescence intensity of TGA@CdS QDs in the absence and the presence of 50 μM Co2+. (b) The fluorescence quenching in the presence of 50 μM Co2+.