Wang Tianchi, Chang Lijing, Hatton Benjamin, Kong Jian, Chen Guang, Jia Yang, Xiong Dangsheng, Wong Chingping
School of Materials Science and Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China.
School of Materials Science and Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing 210094, China.
Mater Sci Eng C Mater Biol Appl. 2014 Oct;43:310-6. doi: 10.1016/j.msec.2014.07.022. Epub 2014 Jul 10.
A lotus leaf was used as a template to fabricate superhydrophobic biomorphic ZnO on a carbon substrate (ZnO/C). First, a carbon substrate with the microstructure of a leaf surface was obtained by sintering a lotus leaf in argon. A biomorphic ZnO/C material was then obtained by immersing this carbon substrate into a Zn(NO3)2 solution and sintering. Finally, the hydrophobicity of the surfaces of the products thus obtained was investigated. This ZnO/C material exhibited excellent superhydrophobicity and low adhesion after it was modified with fluorine silane. The water contact angle of the resulting product was 162°, which exceeds that of the lotus leaf (157°) and is much higher than that of smooth carbon covered with the same fluorine silane (114°). Moreover, this surface displayed a stable superhydrophobic performance even after exposure to ambient air for several months.
以荷叶为模板在碳基底（ZnO/C）上制备超疏水生物形态ZnO。首先，通过在氩气中烧结荷叶获得具有叶表面微观结构的碳基底。然后将该碳基底浸入Zn(NO3)2溶液中并烧结，得到生物形态的ZnO/C材料。最后，研究所得产物表面的疏水性。该ZnO/C材料用氟硅烷改性后表现出优异的超疏水性和低附着力。所得产物的水接触角为162°，超过了荷叶的水接触角（157°），且远高于覆盖相同氟硅烷的光滑碳的水接触角（114°）。此外，即使在暴露于环境空气几个月后，该表面仍表现出稳定的超疏水性能。
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