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- W2799710316 abstract "Nitrogen and sulfur co-doped reduced graphene oxide (NS-rGO) was synthesized using a facile low temperature calcination method, which was then used as support and cocatalyst for the anchor of CdS. The obtained CdS/NS-rGO nanocomposites exhibit ultra-high photocatalytic activity for hydrogen evolution and 4-nitrophenol (4-NP) reduction under visible light (λ ≥ 420 nm). Their activity could also be adjusted by changing the doping amount of S and N, or by changing the ratios between CdS and NS-rGO. The optimum percentage of NS-rGO is 5 wt%, at which CdS/NS-rGO photocatalyst could achieve the highest H2 evolution rate of 1701 μmol h–1 g–1. Moreover, the reduction from 4-NP to 4-aminophenol (4-AP) could be completed within only 6 min over this optimized composite. NS-rGO here could provide more active sites as well as tune the band gap structure to increase the photo-activity. The density functional theory (DFT) calculations reveal that NS-rGO has a small Gibbs free energy for H* adsorption (ΔGH), which could increase the utilization efficency of photo-generated electrons for H2 generation. NS-rGO is therefore an idea alternate cocatalyst of noble metals for new photocatalysts development." @default.
- W2799710316 created "2018-05-17" @default.
- W2799710316 creator A5003852242 @default.
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- W2799710316 date "2018-11-01" @default.
- W2799710316 modified "2023-10-17" @default.
- W2799710316 title "Synthesis of nitrogen and sulfur co-doped reduced graphene oxide as efficient metal-free cocatalyst for the photo-activity enhancement of CdS" @default.
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- W2799710316 doi "https://doi.org/10.1016/j.apcatb.2018.05.021" @default.
- W2799710316 hasPublicationYear "2018" @default.
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