Jump to main content
Jump to site search


A novel cobalt implanted pyridylporphyrin/graphene oxide nanohybrid for enhanced photocatalytic hydrogen evolution and its electron transfer mechanism

Abstract

A cobalt nanoparticles implanted 5,15-diphenyl-10,20-di(4-pyridyl) porphyrin (DPyP)/graphene oxide (GO) nanohybrid (GO-Co-DPyP) was facilely fabricated. By mean of XPS, XRD, Raman spectra and UV-vis spectra, it was demonstrated that, implanted cobalt nanoparticles (Co NPs) in the GO, a stronger interaction between GO and DPyP can be achieved, which enlarged the included angle between DPyP and GO. It was profitable for light absorption and photo-produced electron transfer. Furthermore, photocatalytic activity for hydrogen evolution over the nanohybrid was investigated. It was shown that a higher activity over the GO-Co-DPyP nanohybrid was obtained, and it was about two times higher than that implanted Co2+ in the GO (GO-Co2+-DPyP). Combined with the results of fluorescence spectra and photoelectronic spectra, electron transfer mechanism for hydrogen evolution was clarified. It will provide some theoretical and experimental basis for the assembly and photocatalytic performance of GO-based composites by the interfacial modification.

Back to tab navigation

Supplementary files

Publication details

The article was received on 31 Jul 2018, accepted on 09 Sep 2018 and first published on 13 Sep 2018


Article type: Paper
DOI: 10.1039/C8NR06138F
Citation: Nanoscale, 2018, Accepted Manuscript
  •   Request permissions

    A novel cobalt implanted pyridylporphyrin/graphene oxide nanohybrid for enhanced photocatalytic hydrogen evolution and its electron transfer mechanism

    K. Zhu, Q. Luo, S. Kang, L. Qin, G. Li and X. Li, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR06138F

Search articles by author

Spotlight

Advertisements