▎ 摘　　要

Harvesting and converting renewable solar energy into thermal energy has attracted tremendous attraction due to the high conversion efficiency of the photothermal technique. However, the practical large-scale application of photothermal conversion is hindered by ineffective system designs, complex preparation process and poor mechanical properties. Herein, a facile strategy is applied to assemble Al foil/reduced graphene oxide/Mn3O4 (Al/RGO/Mn3O4) composite film with a few outstanding features, including the broadband absorption, high mechanical strength and scalable production, for photothermal vaporization. The Al/RGO/Mn(3)O(4 )composite film prepared by a spontaneously fabricating method can efficiently collect and convert the ubiquitous solar energy into steam, demonstrating a evaporation rate of 1.65 kg m(-2) h(-1) under one sun and an excellent stability for desalination. The reducing/assembling strategy at room temperature may provide potential opportunity for practical large-scale photothermal applications. (C) 2019 Elsevier Ltd. All rights reserved.