One-dimensional nanostructures are of great interest for a wide range of applications. In this work, we demonstrated the fabrication of visible-light-responsive Cu2O porous nanosheet arrays. The synthesis involved the growth of Cu(OH)(2) nanosheet arrays on Cu mesh by solution-based corrosion and thermal transformation of Cu(OH)(2) nanosheet to Cu2O porous nanosheets on Cu mesh. Benefiting from the one dimensional array structure and porous structure, the as-prepared Cu2O porous nanosheet arrays exhibited significantly improved photocatalytic activity for methyl orange degradation under visible light irradiation. (C) 2015 Elsevier Ltd. All rights reserved.