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日用化学工业 ›› 2018, Vol. 48 ›› Issue (5): 272-277.doi: 10.13218/j.cnki.csdc.2018.05.006

• 开发与应用 • 上一篇    下一篇

耐腐蚀超疏水超亲油不锈钢网的制备及其在油水分离过程中的应用

丁鹏1, 台秀梅1, 杜志平1,2   

  1. 1.中国日用化学工业研究院,山西 太原 030001;
    2.山西大学 资源与环境工程研究所,山西 太原 030006
  • 收稿日期:2018-01-05 发布日期:2019-03-18
  • 通讯作者: 杜志平,教授,电话:(0351)4084691,E-mail:duzhiping@sxu.edu.cn。
  • 作者简介:丁 鹏(1992-),男,硕士研究生,电话:17635369764,E-mail:17635369764@163.com。
  • 基金资助:
    国家重点研发计划经费资助项目(2017YFB0308704);伽蓝研究基金资助项目(Jala2015)

Preparation of anti-corrosion superhydrophobic/superoleophilic stainless steel mesh and its application in oil/water separation

DING Peng1, TAI Xiu-mei1, DU Zhi-ping1,2   

  1. 1.China Research Institute of Daily Chemical Industry,Taiyuan,Shanxi 030001,China;
    2.Resources and Environment Engineering Research Institute,Shanxi University,Taiyuan,Shanxi 030006,China
  • Received:2018-01-05 Published:2019-03-18

摘要: 以不锈钢网为基底,通过化学刻蚀法制备微米级粗糙表面,通过一步浸泡法将stöber法制得的疏水亲油纳米SiO2颗粒沉积到粗糙的不锈钢网表面,制备了具有微纳二级粗糙结构的超疏水超亲油不锈钢网。利用扫描电子显微镜(SEM)、傅里叶变换红外光谱仪(FT-IR)和接触角测量仪(CA)表征了超疏水超亲油不锈钢网的表面形貌、化学组成和润湿性能,并将其用于油水分离过程中。结果表明,疏水亲油纳米SiO2颗粒成功的沉积到不锈钢网表面;水滴在超疏水超亲油不锈钢网上的接触角最大为151°,煤油的接触角为0°;制备的超疏水超亲油不锈钢网不仅能高效的分离不同种类油和水的混合物,还能高效的分离油和腐蚀性液体(强酸或强碱水溶液)的混合物,其耐腐蚀特性可满足复杂环境下的油水分离要求。

关键词: 超疏水, 超亲油, 纳米SiO2, 油水分离, 耐腐蚀

Abstract: Using stainless steel mesh as substrate,a superhydrophobic/superoleophilic stainless steel mesh with micro/nano hierarchical structure was prepared.The surface with micron-sized roughness was obtained through chemical etching and was then coated with hydrophobic/oleophilic nano-SiO2 (the nano-SiO2 was obtained by stöber method) through one step immersing method.The surface morphology,chemical composition and wettability of the superhydrophobic/superoleophilic stainless steel mesh were characterized by scanning electron microscopy (SEM),fourier transform infrared spectroscopy (FT-IR) and contact angle measurement (CA).The mesh was used in oil/water separation process.Results show that hydrophobic/oleophilic nano-SiO2 was coated on the surface of chemical etched stainless steel mesh.The surface of the prepared mesh exhibited superhydrophobicity and superoleophilicity with a water contact angle of 151° and kerosene contact angle of 0°.The prepared mesh could efficiently separate not only the mixtures of water and different kinds of oil but also the mixtures of oil and corrosive aqueous solutions (containing strong acid or alkali).The anti-corrosion ability could meet the requirements of oil/water separation in complex environments.

Key words: superhydrophobic, superoleophilic, nano-SiO2, oil/water separation, anti-corrosion

中图分类号: 

  • TG178