Unravelling the doping effect of potassium ions on structural modulation and photocatalytic activity of graphitic carbon nitride† † Electronic supplementary information (ESI) available. See DOI: https://doi.org/10.1039/d3ra00934c

ABSTRACT: Graphitic carbon nitride (GCN), as a promising photocatalyst, has been intensely investigated in the photocatalytic fields, but its performance is still unsatisfactory. To date, metal ion doping has been proven to be an effective modification method to improve the photocatalytic activity of GCN. More importantly, comprehensive understanding of the doping mechanism will be of benefit to synthesize efficient GCN based photocatalysts. In this work, K+-doped GCN samples were prepared via heating the mixture of the preheated melamine and a certain amount of KCl at different synthetic temperatures. XRD and Raman characterization studies indicated that the introduction of K+ could improve its crystallinity at higher temperature but reduce its crystallinity at lower temperature. Moreover, FTIR and

SUBMITTER: Peng C 

PROVIDER: S-EPMC10026624 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature