Jump to main content
Jump to site search


Green Radicals of Potassium Poly(heptazine imide) by Light and Benzylamine

Abstract

The tinted long-lived ionic carbon nitride radicals were recently introduced and applied in photocatalysis and energy storage. Still the reason for higher activity in the photocatalytic reaction and optimal conditions for generating such radicals remain vague. Herein, we study conditions of carbon nitrides photocharging to achieve higher charge density and validate a convenient method to quantify a number of electrons accumulated in the carbon nitride semiconductors by quenching its radical with methylviologen in dark. In the presence of CO2, potassium poly(heptazine imide) can be charged up to 1000 μmol μmol of electrons per gram of the material using benzylamine as electron donor. Under the same conditions mesoporous graphitic carbon nitride can accumulate only 50 μmol of electrons per gram. The products of benzylamine oxidative coupling are imine and ammonia.

Back to tab navigation

Supplementary files

Publication details

The article was received on 28 Aug 2019, accepted on 07 Oct 2019 and first published on 09 Oct 2019


Article type: Communication
DOI: 10.1039/C9TA09500D
J. Mater. Chem. A, 2019, Accepted Manuscript
  • Open access: Creative Commons BY license
  •   Request permissions

    Green Radicals of Potassium Poly(heptazine imide) by Light and Benzylamine

    Y. Markushyna, P. Lamagni, C. Teutloff, J. Catalano, N. Lock, G. Zhang, M. Antonietti and A. Savateev, J. Mater. Chem. A, 2019, Accepted Manuscript , DOI: 10.1039/C9TA09500D

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements