Decoration of nicale phosphide nanoparticles on CdS nanorods for enhanced photocatalytic hydrogen evolution. (1st August 2022)

• Record Type: Journal Article
• Authors: Chen, Lu; Wang, Deling; Xia, Yuzhou; Liang, Ruowen; Huang, Renkun; Yan, Guiyang
• Is Part Of: International journal of hydrogen energy. Volume 47:Number 66(2022)
• Page Start: 28486
• Page End: 28494
• Publication Date: 2022-08-01
• Subjects: Co-catalyst -- Schottky junction -- Photocatalytic hydrogen evolution; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2022.06.174
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Manipulation of the co-catalyst plays an important role in charge separation and reactant activation to enhance the activity of CdS based photocatalysts. Transition-metal phosphides have aroused widespread interest in catalysis owing to their special structure and catalytic behavior. Herein, Ni2 P as a cocatalyst coupled with CdS for efficient photocatalytic hydrogen evolution with a rate of 483.25 mmol g −1. h −1, which was nearly 525 and 1.92 times higher than that of CdS (0.92 mmol g −1. h −1 ) and 1 wt % noble metal Pt modified CdS (251.29 mmol g −1. h −1 ), respectively. Its apparent quantum yield reaches 70% at 420 nm. Based on data analysis, Schottky heterostructure was constructed by combining Ni2 P with CdS. The Schottky junction provides a convenient way for photoinduced electrons to transfer and promotes the effective separation of photoinduced carriers. Graphical abstract: Image 1 Highlights: The cocatalyst can promote the separation of photoinduced charges. Ni2 P/CdS exhibits the most efficient photocatalytic activity. Schottky junction constructed at the Ni2 P/CdS interface.