Embedding Au Quantum Dots in Rimous Cadmium Sulfide Nanospheres for Enhanced Photocatalytic Hydrogen Evolution

Kuang, Panyong; Zheng, Ping-Xuan; Liu, Zhao‐Qing; Lei, Jinlong; Wu, Hao; Li, Nan; Ma, Tianyi

doi:10.1002/smll.201602870

Cited by 187 publications

(80 citation statements)

References 46 publications

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“…The semiconductor with more negative CB bottom potential can exhibit stronger reduction ability and hence achieve more efficient HER. [ 111,150 ] To date, a large number of semiconductor photocatalysts with negative CB position have been widely investigated in photocatalytic HER, such as ZnO, [ 151 ] TiO 2 , [ 152 ] Cd x Zn 1− x S, [ 153,154 ] Cu 2 O, [ 155 ] g‐C 3 N 4 , [ 156–158 ] and CdS [ 159,160 ] and so on.…”

Section: D Graphene‐based Composites For Photocatalytic Hermentioning

confidence: 99%

3D Graphene‐Based H₂‐Production Photocatalyst and Electrocatalyst

Kuang

Sayed

Fan

et al. 2020

Advanced Energy Materials

253

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Hydrogen (H2) has been deemed as the most promising and valuable alternative to nonrenewable fossil fuels. Photocatalytic and electrocatalytic water splitting are considered to be the most efficient and environmentally friendly approaches for the sustainable H2 evolution reaction (HER). Graphene with a 3D framework has been utilized for the HER due to its unique structure and properties, including its hierarchical network, large specific surface area, diverse pore distribution, outstanding light absorption ability, and excellent electrical conductivity. The large specific surface area and hierarchically porous structure of 3D graphene can not only maximize the exposure of active sites but also promote electron transfer and gas product diffusion. In addition, the free‐standing 3D graphene monolith is easily recycled compared with powder phase support, which can prevent the loss of active catalysts. By making full use of the aforementioned merits, 3D graphene‐based composite materials show great promise as high‐performance catalysts toward photocatalytic and electrocatalytic HER. In this review, recent advances in fabricating 3D graphene‐based composite materials and their applications in both photocatalytic and electrocatalytic HER are summarized and discussed. Furthermore, the current challenges and future vision associated with the design, fabrication, and integration of 3D graphene‐based composite materials toward HER are put forward.

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Section: D Graphene‐based Composites For Photocatalytic Hermentioning

confidence: 99%

3D Graphene‐Based H₂‐Production Photocatalyst and Electrocatalyst

Kuang

Sayed

Fan

et al. 2020

Advanced Energy Materials

253

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“…28,29 Introducing suitable and cheap cocatalysts coupled with g-C 3 N 4 photocatalysts is a feasible method to suppress charge recombination and introduce a larger number of active reaction sites for highly efficient H 2 production. So far, precious metals, such as platinum (Pt), [30][31][32] gold (Au), 33,34 ruthenium (Ru), 7 rhodium (Rh), 35 palladium (Pd) [36][37][38] and silver (Ag) 39,40 have been used widely because of their excellent catalytic performance in H 2 production. 41 However, the large-scale application of these precious metal catalysts is greatly impeded by their exorbitant prices and scarcity.…”

Section: Introductionmentioning

confidence: 99%

Cu₃P and Ni₂P co‐modified g‐C₃N₄ nanosheet with excellent photocatalytic H₂ evolution activities

Sun

Shi

et al. 2020

J of Chemical Tech & Biotech

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Copper-nickel phosphides/ graphite-like phase carbon nitride (Cu 3 P-Ni 2 P/g-C 3 N 4) composites were obtained through a facile one-pot in situ solvothermal approach. The coexistence of Cu 3 P and Ni 2 P plays an important role in enhancing the catalytic activity of g-C 3 N 4. The 7 wt% Cu 3 P-Ni 2 P/g-C 3 N 4 bimetallic phosphide photocatalyst demonstrates the best photocatalytic hydrogen (H 2) evolution rate of 6529.8 ∼mol g −1 h −1 , which is 80.7-fold higher than that of g-C 3 N 4. The apparent quantum yield (AQE) was determined to be 18.5% at 400 nm over the 7% Cu 3 P-Ni 2 P/g-C 3 N 4. This in situ growth strategy produced intimate contact interfaces, leading to a significantly promoted separation of charge carriers, and hence strengthened the photocatalytic H 2 production. Moreover, the coexistence of Cu 3 P and Ni 2 P reduced the overpotential of H 2 during the evolution process, further benefiting H 2 production. Finally, the photocatalytic enhancement mechanism was proposed and verified by fluorescence and electrochemical analysis. This work provides a low-cost strategy to synthesize nonprecious bimetallic phosphides/ carbon nitride photocatalyst with outstanding H 2 production activity.

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“…In general, plasmonic photocatalysts are composed of noble metal nanostructures and semiconductors, in which the localized surface plasmon resonance (LSPR) of noble metal nanostructures can concentrate and amplify the incident light intensity to sensitize the photo‐physical processes of the contacting semiconductors . To date, researchers have reported the enhanced photocatalytic activities of plasmonic photocatalysts for water reduction based on the plasmon‐induced sensitization effect of either resonance energy transfer (RET) or hot electron transfer (HET) from noble metal nanostructures to semiconductors . Nevertheless, the effective integration of both the plasmonic RET and HET process within one plasmonic photocatlyitc system for synergistically enhancing H 2 generation is still a tremendous challenge.…”

Section: Introductionmentioning

confidence: 99%

UV‐Vis‐NIR‐Driven Plasmonic Photocatalysts with Dual‐Resonance Modes for Synergistically Enhancing H₂ Generation

Zhang

Liu

et al. 2018

Solar RRL

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Plasmonic noble‐metal nanostructures have been introduced into semiconductor photocatalytsts to enhance the efficiency of solar‐to‐fuels conversion. However, most researches in this field focus on the utilization of a single resonance mode of plasmonic noble‐metal to sensitize the photo‐activity of semiconductor. Here, a novel UV‐vis‐NIR‐driven plasmonic photocatalyst is developed through selective assembly of the Pt and CdS nanostructures onto the Au nanorods (NRs) via a controllable multi‐step wet‐chemistry route. By combining finite element simulations with transient absorption (TA) results, it is demonstrated that the dual‐resonance modes of anisotropic Au NRs can induce a unique synergistic effect between the plasmonic resonance energy transfer (RET) and hot electron transfer (HET) processes within the Au‐Pt‐CdS NRs. As such, upon simulated sunlight irradiation, the photocatalytic activity of Au‐Pt‐CdS NRs for H2 generation is higher than that of the optimal Pt‐loaded CdS nanoparticles (NPs) by almost one order of magnitude.

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Embedding Au Quantum Dots in Rimous Cadmium Sulfide Nanospheres for Enhanced Photocatalytic Hydrogen Evolution

Cited by 187 publications

References 46 publications

3D Graphene‐Based H₂‐Production Photocatalyst and Electrocatalyst

3D Graphene‐Based H₂‐Production Photocatalyst and Electrocatalyst

Cu₃P and Ni₂P co‐modified g‐C₃N₄ nanosheet with excellent photocatalytic H₂ evolution activities

UV‐Vis‐NIR‐Driven Plasmonic Photocatalysts with Dual‐Resonance Modes for Synergistically Enhancing H₂ Generation

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Embedding Au Quantum Dots in Rimous Cadmium Sulfide Nanospheres for Enhanced Photocatalytic Hydrogen Evolution

Cited by 187 publications

References 46 publications

3D Graphene‐Based H2‐Production Photocatalyst and Electrocatalyst

3D Graphene‐Based H2‐Production Photocatalyst and Electrocatalyst

Cu3P and Ni2P co‐modified g‐C3N4 nanosheet with excellent photocatalytic H2 evolution activities

UV‐Vis‐NIR‐Driven Plasmonic Photocatalysts with Dual‐Resonance Modes for Synergistically Enhancing H2 Generation

Contact Info

Product

Resources

About

3D Graphene‐Based H₂‐Production Photocatalyst and Electrocatalyst

3D Graphene‐Based H₂‐Production Photocatalyst and Electrocatalyst

Cu₃P and Ni₂P co‐modified g‐C₃N₄ nanosheet with excellent photocatalytic H₂ evolution activities

UV‐Vis‐NIR‐Driven Plasmonic Photocatalysts with Dual‐Resonance Modes for Synergistically Enhancing H₂ Generation