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- W2606598705 abstract "Abstract In this work, novel CuS/g-C3N4 composite photocatalysts were successfully prepared via a simple in-situ growth method. CuS nanoparticles, with an average diameter of ca.10 nm, were well dispersed on the surface of g-C3N4, revealing that g-C3N4 nanosheets were promising support for in-situ growth of nanosize materials. The CuS/g-C3N4 composites exhibited highly enhanced visible light photocatalytic H2 evolution from water-splitting compared to pure g-C3N4. The optimum photocatalytic activity of 2 wt% CuS/g-C3N4 composite photocatalytic H2 evolution was about 13.76 times higher than pure g-C3N4. The enhanced photocatalytic activity is attributed to the interfacial charge transfer (IFCT). In this system, electrons in the valence band (VB) of g-C3N4 can transfer directly to CuS clusters, causing the reduction of partial CuS to Cu2S, which can act as an electron sink and co-catalyst to promote the separation and transfer of photo-generated electrons. The accumulated photoinduced electrons in CuS/Cu2S clusters could effectively reduce H+ to produce H2. This work provides a possibility for constructing low-cost CuS as a substitute for noble metals in the photocatalytic production of H2 via a facile method based on g-C3N4." @default.
- W2606598705 created "2017-04-28" @default.
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- W2606598705 date "2017-04-01" @default.
- W2606598705 modified "2023-10-16" @default.
- W2606598705 title "In-situ fabrication of CuS/g-C 3 N 4 nanocomposites with enhanced photocatalytic H 2 -production activity via photoinduced interfacial charge transfer" @default.
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- W2606598705 doi "https://doi.org/10.1016/j.ijhydene.2017.03.188" @default.
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