Decorating CoP and Pt Nanoparticles on Graphitic Carbon Nitride Nanosheets to Promote Overall Water Splitting by Conjugated Polymers,ChemSusChem

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Decorating CoP and Pt Nanoparticles on Graphitic Carbon Nitride Nanosheets to Promote Overall Water Splitting by Conjugated Polymers
ChemSusChem ( IF 7.5 ) Pub Date : 2016-08-26 , DOI: 10.1002/cssc.201600850
Zhiming Pan ₁ , Yun Zheng ₁ , Fangsong Guo ₁ , Pingping Niu ₁ , Xinchen Wang ₁

Affiliation

The splitting of water into H₂ and O₂ using solar energy is one of the key steps in artificial photosynthesis for the future production of renewable energy. Here, we show the first use of CoP and Pt nanoparticles as dual co‐catalysts to modify graphitic carbon nitride (g‐C₃N₄) polymer to achieve overall water splitting under visible light irradiation. Our findings demonstrate that loading dual co‐catalysts on delaminated g‐C₃N₄ imparts surface redox sites on the g‐C₃N₄ nanosheets that can not only promote catalytic kinetics but also promote charge separation and migration in the soft interface, thus improving the photocatalytic efficiency for overall water splitting. This robust, abundant, and stable photocatalyst based on covalent organic frameworks is demonstrated to hold great promise by forming heterojunctions with CoP and Pt for catalyzing the direct splitting of water into stoichiometric H₂ and O₂ using energy from photons.

中文翻译：

在石墨化氮化碳纳米片上装饰CoP和Pt纳米颗粒，以促进共轭聚合物对水的总分解

利用太阳能将水分解为H ₂和O ₂，是未来进行可再生能源生产的人工光合作用的关键步骤之一。在这里，我们展示了CoP和Pt纳米颗粒首次用作双重助催化剂来改性石墨碳氮化物（g-C ₃ N ₄）聚合物，以在可见光照射下实现整体水分解。我们的研究结果表明在该分层装载双助催化剂G-C ₃ Ñ ₄面授表面上氧化还原位点G-C ₃ Ñ ₄纳米片不仅可以促进催化动力学，而且还可以促进电荷在软界面中的分离和迁移，从而提高了整体水分解的光催化效率。通过与CoP和Pt形成异质结，利用来自光子的能量催化将水直接分解为化学计量的H ₂和O ₂，这种基于共价有机骨架的坚固，丰富和稳定的光催化剂被证明具有广阔的前景。

更新日期：2016-08-26

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