Reed Leaf-Inspired Graphene Films with Anisotropic Superhydrophobicity

• DOI: 10.1021/acsami.8b03738
• Publication Date: 2018-05-03T16:05:34Z
• Authors: Hao-Bo Jiang; Yu-Qing Liu; Yong-Lai Zhang; Yan Liu; Xiu-Yan Fu; Dong-Dong Han; Yun-Yun Song; Luquan Ren; Hong-Bo Sun
• Keywords: Dewetting

Controlling the wettability of graphene and its derivatives is critical for broader applications. However, dynamic dewetting performance usually overlooked. Currently, superhydrophobic with an anisotropic rare. Inspired by natural reed leaves, we report ingenious fabrication process combining photolithography laser holography technologies to create biomimetic surfaces that demonstrate along two directions grooved hierarchical structures, which are similar leaf veins. Microgrooved structures a period 200 μm were fabricated via endow substrate obvious wettability. Two-beam interference treatments oxide (GO) film on removed most hydrophilic oxygen-containing groups GO sheets increased surface roughness introducing additional micro–nanostructures. The combined effects endowed resultant films unique superhydrophobicity leaves. Superhydrophobic antiwetting behavior might allow further innovations based in fields bionics electronics.