A simple, large-scale and template-free synthesis of highly photoactive carbon nitride (CN) with tunable morphology, surface area and photophysical properties as well as photocatalytic activity for pollutant degradation and clean hydrogen production is reported.
Porous carbons with a high specific surface area (2314–3470 m2 g−1) are prepared via a novel KCl-assisted activation strategy for high-performance supercapacitor.