Non-noble-metal Ni nanoparticles modified N-doped g-C3N4 for efficient photocatalytic hydrogen evolution. (15th November 2019)

• Record Type: Journal Article
• Authors: Deng, Puhui; Gan, Mengxiang; Zhang, Xue; Li, Zhuzhu; Hou, Yu
• Is Part Of: International journal of hydrogen energy. Volume 44:Number 57(2019)
• Page Start: 30084
• Page End: 30092
• Publication Date: 2019-11-15
• Subjects: Photocatalytic -- Hydrogen evolution -- Nitrogen-doped graphite carbon nitride -- Nickel -- Co-catalyst; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2019.09.129
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: The use of non-noble-metal to replace precious metal as co-catalyst in solar-driven hydrogen evolution reaction (HER) is important for lowering hydrogen production cost. In this work, nickel metal nanoparticles loaded nitrogen-doped graphite carbon nitride (NiNCN3) was prepared, which significantly enhanced the HER activity of nitrogen-doped graphite carbon nitride. The hydrogen evolution rate of NiNCN3 can reach to 1507 μmol g −1 h −1, much higher than that of 3 wt % Pt/NCN (1055 μmol g −1 h −1 ). The distinguished photocatalytic performance is due to the accelerated electron transfer efficiency and inhibited photogenerated electron-hole recombination. Our study offers an alternative method to achieve the low-cost and effective noble-metal-free photocatalyst for HER. Graphical abstract: A noble-metal-free photocatalyst for hydrogen evolution was prepared by photodeposition of Ni metal particles on the surface of nitrogen-doped graphitic carbon nitride. This material exhibits excellent photocatalytic activity, which provide an alternative choice to avoid using Pt as a co-catalyst. Image 1 Highlights: Ni nanoparticles were loaded on the surface of N-doped g-C3 N4 by photodeposition. This material exhibits better photocatalytic activity than Pt@N-doped g-C3 N4 . Our study offers an alternative method to achieve the cheap photocatalyst for HER.