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- W3202046029 endingPage "120755" @default.
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- W3202046029 abstract "Visible-driven photocatalysis plays a critical role in solar energy conversion, but the efficiency is limited by the poor charge separation and utilization. Here, a ternary photocatalyst is constructed using Cu-In-Zn-S quantum dots (CIZS QDs), MoS2 and carbon dots (CDs). Interestingly, transient photovoltage measurements confirm that MoS2 has no assistance on the charge extraction rate, whereas CDs dramatically increases the attenuation constant of the charge recombination process (from 0.178 to 0.260 ms) due to its electron sinking effect. The optimal hydrogen production rate of CIZS/MoS2/CDs reaches 3706 μmol g-1 h-1, which is 6.65 and 148.24 times to that of CIZS QDs and MoS2, respectively. Further electrocatalytic tests indicate that MoS2 is the main place for hydrogen evolution reaction, whereas CIZS and CDs are responsible for light harvesting and charge sinking, respectively. This work provides a useful guideline for the synergy of charge extraction and utilization process in composite photocatalyst design." @default.
- W3202046029 created "2021-10-11" @default.
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- W3202046029 date "2022-02-01" @default.
- W3202046029 modified "2023-10-18" @default.
- W3202046029 title "Carbon dots mediated charge sinking effect for boosting hydrogen evolution in Cu-In-Zn-S QDs/MoS2 photocatalysts" @default.
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- W3202046029 doi "https://doi.org/10.1016/j.apcatb.2021.120755" @default.
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