We discuss three innovative materials used in photocatalysis and photoluminescence for water treatment applications, including graphitic carbon nitride (g-C3N4), red phosphorus, and upconversion phosphors (Y2SiO5 doped with Pr and Li).
Efficient charge transfer takes place by coupling nitrogen doped graphene with TiO2 and the charge recombination of the composites is significantly suppressed, resulting enhanced photocurrent responses than pristine TiO2.