Fig. 5: Absorption spectra of an aqueous dispersion of purified CdS MSC-360 before and after mixing with BTA. | Nature Communications

Fig. 5: Absorption spectra of an aqueous dispersion of purified CdS MSC-360 before and after mixing with BTA.

From: Room-temperature formation of CdS magic-size clusters in aqueous solutions assisted by primary amines

Fig. 5

All spectra are offset to have similar absorbance at 440 nm. Purified CdS MSC-360 is dispersed in deionized water with a concentration of about 1.0 g ∙ L−1, and the absorption measurements last for 1 day at various durations indicated a. CdS MSC-360 disappears gradually. Afterwards, 1.5 mL of the dispersion is mixed with BTA (1.5 mL) for additional measurements up to 6 h b. CdS MSC-360 evolves again. In water (a), CdS MSC-360 transforms to its PC; upon the presence of BTA (b), the PC to MSC-360 transformation occurs, with almost complete recovery of MSC-360 in the relatively short period of 6 h.

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