Removing unreacted amino groups in graphitic carbon nitride through residual heating to improve the photocatalytic performance† † Electronic supplementary information (ESI) available. See DOI: https://doi.org/10.1039/d2ra08324h

ABSTRACT: In most of the research about graphitic carbon nitride (g-C3N4), g-C3N4 is prepared through the calcination of nitrogen-rich precursors. However, such a preparation method is time-consuming, and the photocatalytic performance of pristine g-C3N4 is lackluster due to the unreacted amino groups on the surface of g-C3N4. Therefore, a modified preparation method, calcination through residual heating, was developed to achieve rapid preparation and thermal exfoliation of g-C3N4 simultaneously. Compared with pristine g-C3N4, the samples prepared by residual heating had fewer residual amino groups, a thinner 2D structure, and higher crystallinity, which led to a better photocatalytic performance. The photocatalytic degradation rate of the optimal sample for rhodamine B could reach 7.8 times higher

SUBMITTER: Zhang W 

PROVIDER: S-EPMC9969336 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature