Cadmium sulfide nanocrystallites

Photocatalytic reduction and flxation of CO2 on cadmium sulfide nanocrystallites... 

The enhancement can be explained also by an excitation transfer from Si nanocrystallites to Eu ions. Other authors [10] have shown similar results by comparing the PL of Eu in silica gel and in silica gel with colloidal cadmium sulfide. They show that CdS nanoparticles enhanced Eu fluorescence due to energy transfer from a surface trap in the CdS particles to Eu ions. 

The addition of macrocycles on CdS synthesis in reverse micelles induces a strong change in absorption spectra. For a given water content, a red shift of absorption onset is observed in presence of macrocycles. This effect is more pronounced in presence of Kryptofix 222 and when the CdS nanocrystallite synthesis is realized in presence of an excess of sulfide S2 ions (x = ). This red shift is characteristic of an increase in the average nanocrystallite size. It can be noticed that absorption of CdS particles synthetized in reverse micelles in presence of an excess of cadmium Cd2+ ions (x = 2) is reduced in presence of macrocycles. This indicates a decrease in the yield of CdS particles and is attributed to complexation of functionalized... 

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