Journal Article10.1016/J.APCATB.2018.09.035
NH2-MIL-101(Fe)/Ni(OH)2-derived C,N-codoped Fe2P/Ni2P cocatalyst modified g-C3N4 for enhanced photocatalytic hydrogen evolution from water splitting
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TL;DR: In this article, C,N-codoped Fe2P/Ni2P (CN/FeNiP) polyhedrons derived from NH2-MIL101(Fe)/Ni(OH)2 were used as cocatalysts to modify graphitic carbon nitride (g-C3N4) for photocatalytic hydrogen production from water splitting under visible-light irradiation.
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Abstract: Constructing appropriate cocatalysts to modify semiconductors while maintaining tight interface for charge separation facilitation is important for improving photocatalytic hydrogen production. Thus, in this work, C,N-codoped Fe2P/Ni2P (CN/FeNiP) polyhedrons derived from NH2-MIL-101(Fe)/Ni(OH)2 were used as cocatalysts to modify graphitic carbon nitride (g-C3N4) for photocatalytic hydrogen production from water splitting under visible-light irradiation. The highest evolution rate observed over CN/FeNiP/g-C3N4 was 13.81 mmol g−1 h−1 under 1.0 mmol L−1 of Eosin Y (EY) sensitization (compared to 0.196 mmol g−1 h−1 without EY sensitization), which was about 10 and 5 times higher than that of g-C3N4 (1.33 mmol g−1 h−1) and CN/FeP/g-C3N4 (2.73 mmol g−1 h−1). The apparent quantum yield at 420 nm reached 45.8%. A detail analysis of the mechanism revealed that the improved photocatalytic activity can be ascribed to highly efficient spatial separation of photo-induced charges from the excited EY and g-C3N4 to CN/FeNiP with tight interface, staggered band energy between g-C3N4, CN/Fe2P and Ni2P as well as accelerated surface reaction by CN/FeNiP cocatalysts. This work demonstrates that MOF-derived hybrid hollow metal phosphide can be good substitutes for noble metal catalysts for photocatalytic hydrogen production.
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Emerging Cocatalysts on g-C3N4 for Photocatalytic Hydrogen Evolution
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References
Heterogeneous photocatalyst materials for water splitting
Akihiko Kudo,Yugo Miseki +1 more
TL;DR: This critical review shows the basis of photocatalytic water splitting and experimental points, and surveys heterogeneous photocatalyst materials for water splitting into H2 and O2, and H2 or O2 evolution from an aqueous solution containing a sacrificial reagent.
9.9K
Processable aqueous dispersions of graphene nanosheets
TL;DR: It is reported that chemically converted graphene sheets obtained from graphite can readily form stable aqueous colloids through electrostatic stabilization, making it possible to process graphene materials using low-cost solution processing techniques, opening up enormous opportunities to use this unique carbon nanostructure for many technological applications.
Graphitic Carbon Nitride (g-C3N4)-Based Photocatalysts for Artificial Photosynthesis and Environmental Remediation: Are We a Step Closer To Achieving Sustainability?
TL;DR: It is anticipated that this review can stimulate a new research doorway to facilitate the next generation of g-C3N4-based photocatalysts with ameliorated performances by harnessing the outstanding structural, electronic, and optical properties for the development of a sustainable future without environmental detriment.
6.2K
A review on g-C3N4-based photocatalysts
TL;DR: In this paper, the fundamental mechanism of heterogeneous photocatalysis, advantages, challenges and the design considerations of g-C3N4-based photocatalysts are summarized, including their crystal structural, surface phisicochemical, stability, optical, adsorption, electrochemical, photoelectrochemical and electronic properties.
2.6K
Engineering heterogeneous semiconductors for solar water splitting
TL;DR: In this paper, a critical review highlights some key factors influencing the efficiency of heterogeneous semiconductors for solar water splitting (i.e. improved charge separation and transfer, promoted optical absorption, optimized band gap position, lowered cost and toxicity, and enhanced stability and water splitting kinetics).
1.7K