Fig. 4 | Nature Communications

Fig. 4

From: Efficient photocatalytic hydrogen evolution with ligand engineered all-inorganic InP and InP/ZnS colloidal quantum dots

Fig. 4

Steady state and time-resolved photoluminescence quenching experiment of InP/ZnS-S QDs (525 nm, 15 min). a, b Static photoluminescence quenching for InP/ZnS-S QDs in water after addition of different amounts of Ni2+ and H2A. c, d PL decay curves of InP/ZnS-S QDs after addition of different amounts of Ni2+ and H2A respectively; the inset shows the fitting curve for lifetime changes with increased concentration of Ni2+/H2A. Conditions: pH of all solutions was adjusted to 4.5; excitation wavelength: 406 nm

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