HOU Keke,CHEN Xinhua,ZHANG Wanqiang,et al.Preparation of Biomimetic Superhydrophobic Filter Screen by Electrodeposition and the Oil-Water Separation Performance[J].Plating & Finishing,2020,(4):1-6.[doi:10.3969/j.issn.1001-3849.2020.04.0010]
电沉积法制备仿生超疏水滤网及其油水分离性能
- Title:
- Preparation of Biomimetic Superhydrophobic Filter Screen by Electrodeposition and the Oil-Water Separation Performance
- 文献标志码:
- A
- 摘要:
- 采用电沉积法在铜网表面制备铜镀层，然后经硬脂酸修饰制得具有仿生超疏水性能的滤网。利用扫描电子显微镜、X射线衍射仪、接触角测试仪等对试样的形貌、组成及润湿性等进行表征与分析，探讨电镀时间、电流密度和修饰时间等工艺参数对滤网浸润性的影响，并对制备的仿生超疏水滤网的油水分离性能进行研究。结果表明，铜镀层的微纳米突起结构和硬脂酸修饰的协同作用赋予铜网良好的超疏水性能，其接触角高达165°。该滤网油水分离性能优良，对不同种类油水混合物分离效率高达98％，且反复使用15次后仍能达到90%以上的分离效率。
- Abstract:
- Copper filter with biomimetic superhydrophobic properties was prepared by electrodeposition and modification with stearic acid on copper net. The morphology, structure and wettability of the sample were characterized by scanning electron microscope (SEM), X ray diffractometer (XRD), contact angle measurement. The effects of preparation parameters of plating time, current density and modification time on the surface wettability of the filter were discussed. The oil-water separation performance of the biomimetic super-hydrophobic filter was also studied. The results showed that the synergistic effect of dense micro-nano bump structure and stearic acid modification on the surface of copper mesh endowed copper mesh with good superhydrophobicity, and the contact angle was even up to 165°. The oil-water separation performance of the filter was excellent, the separation efficiency could reach 98% for different oil-water mixtures, and the efficiency could still reach more than 90% after 15 times of repeated use.
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备注/Memo
收稿日期： 2019-04-03；修回日期： 2019-05-25
通讯作者： 侯珂珂（1981-），女，讲师，研究方向为材料表面的润湿性，Email：houkeke0370@163.com
基金项目： 国家自然科学基金（21171143），许昌市科技局项目（2016KJ09），许昌学院科研项目（2019ZD002）