Improving the surface-enhanced Raman scattering activity of carbon nitride by two-step calcining

Abstract

We demonstrated a novel two-step calcining method for growing highly efficient surface-enhanced Raman scattering (SERS) substrates, modified g-C₃N₄. Their morphologies, microstructures and optical properties were successfully controlled by altering the calcining time. Moreover, the modified g-C₃N₄-2 h + Ag substrate exhibited superior SERS activity, suggesting its potential applications in SERS sensing.