Jump to main content
Jump to site search

Issue 28, 2016
Previous Article Next Article

Shape-dependent photocatalytic hydrogen evolution activity over a Pt nanoparticle coupled g-C3N4 photocatalyst

Author affiliations

Abstract

Cubic, octahedral and spherical platinum (Pt) nanoparticles (NPs) ex situ supported on a graphitic carbon nitride (g-C3N4) substrate are synthesized using a colloidal adsorption–deposition method for photocatalytic hydrogen evolution reactions. These Pt NPs of different shapes have similar sizes of around 10 nm but have different facets exposed. It is found that the visible-light-driven photocatalytic activities for the Pt/g-C3N4 hybrid photocatalysts follow the order as: cubic Pt/g-C3N4 < octahedral Pt/g-C3N4 < spherical Pt/g-C3N4, revealing the significant cocatalyst shape-sensitive photocatalytic activity in the Pt/g-C3N4 hybrids. This is mainly due to the different surface atomic structures of different exposed facets of Pt NPs, which lead to the disparity of active sites and adsorption energies in photocatalytic reactions.

Graphical abstract: Shape-dependent photocatalytic hydrogen evolution activity over a Pt nanoparticle coupled g-C3N4 photocatalyst

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 28 Apr 2016, accepted on 13 Jun 2016 and first published on 15 Jun 2016


Article type: Paper
DOI: 10.1039/C6CP02832B
Citation: Phys. Chem. Chem. Phys., 2016,18, 19457-19463
  •   Request permissions

    Shape-dependent photocatalytic hydrogen evolution activity over a Pt nanoparticle coupled g-C3N4 photocatalyst

    S. Cao, J. Jiang, B. Zhu and J. Yu, Phys. Chem. Chem. Phys., 2016, 18, 19457
    DOI: 10.1039/C6CP02832B

Search articles by author