Enhanced photocatalytic hydrogen evolution through suppressed electron–hole recombination in Cs2AgBiBr6-NC/g-C3N4 nanocomposites

One-pot in situ synthesis of 4–6 nm particles of Cs 2 AgBiBr 6 on a g-C 3 N 4 matrix gives a marginal enhancement in the HER from 44.9 μmol g −1 h −1 to 268 μmol g −1 h −1 .