Facile hydroxyl-assisted synthesis of morphological Cu2O architectures and their shape-dependent photocatalytic performancesElectronic supplementary information (ESI) available: Additional SEM images, XRD patterns and absorption spectra of MO solution. See DOI: 10.1039/c4nj00643g

An interesting morphology-evolution of Cu 2 O from cubic, edge-truncated cubic, edge- and corner-truncated octahedral, truncated octahedral, and finally to octahedral architectures was readily achieved by adjusting the concentration of hydroxyl. When evaluated for their photocatalytic performances, these polyhedral Cu 2 O crystals manifest shape-dependent properties. A facile hydroxyl-assisted synthesis of morphological Cu 2 O architectures has been demonstrated, and these polyhedral Cu 2 O manifest shape-dependent properties.