High-performance SrO–Co 3 O 4 nanoparticles anchored on rGO for clean energy: hydrogen generation from formic acid and photocatalytic dye degradation

SrO–Co 3 O 4 @rGO showed enhanced visible-light absorption, efficient charge transfer, and dual catalytic activity for HCOOH dehydrogenation and dye degradation, achieving a high TOF of 5881.1 h −1 with excellent photocatalytic performance.