The charge transfer pathway of CoO QDs/g-C3N4 composites for highly efficient photocatalytic hydrogen evolution

Highly dispersed ultra-small CoO QDs were successfully limited in hollow-sphere g-C3N4 (SCNO) by a novel one-step calcination strategy using cyanuric acid-melamine supramolecular as a precursor. Meanwhile, the volatile gas provided the sufficient condition of confining CoO QDs to repulse its aggregation. TA spectroscopy verified that the photoproduction electrons of SCNO could be directionally transferred to the conduction band of CoO QDs. The...