A highly efficient, non-toxic, metal-free, low-cost, acid–base bifunctional sulfonated graphitic carbon nitride (S-g-C ₃ N ₄ ) nanosheets for Knoevenagel condensation and multicomponent tandem reactions under environmentally benign conditions.

Rational design and development of photocatalytic materials is of paramount importance for efficient utilization of solar energy in photocatalytic applications.

Plasmonic photocatalysis for effective charge carrier separation and tuning of optical response is very much desired. In this review, the recent advances in plasmon mediated graphitic carbon nitride materials for photocatalysis and photoelectrocatalysis are summarized.