超疏水-超亲油棉织物的制备及在油水分离中的应用

doi:10.7503/cjcu20150278

高等学校化学学报 ›› 2015, Vol. 36 ›› Issue (9): 1724.doi: 10.7503/cjcu20150278

超疏水-超亲油棉织物的制备及在油水分离中的应用

石彦龙^1,²(), 杨武², 冯晓娟¹

1. 河西学院化学化工学院, 甘肃省高校河西走廊特色资源利用省级重点实验室, 张掖 734000
2. 西北师范大学化学化工学院, 生态环境相关高分子材料教育部重点实验室, 兰州 730070

收稿日期:2015-04-10 出版日期:2015-09-10 发布日期:2015-08-17
作者简介:联系人简介: 石彦龙, 男, 副教授, 主要从事材料表面的润湿性研究.E-mail:yanlongshi726@126.com
基金资助:
国家自然科学基金(批准号: 20873101)和河西学院校长基金(批准号: XZ201304)资助

Fabrication of Superhydrophobic-superoleophilic Cotton Fabric and Its Application in Water-oil Separation^†

SHI Yanlong^1,^2,^*(), YANG Wu², FENG Xiaojuan¹

1. College of Chemistry and Chemical Engineering, Key Laboratory of Hexi Corridor Resources Utilization of Gansu Universities, Hexi University, Zhangye 734000, China
2. College of Chemistry and Chemical Engineering, Key Laboratory of Eco-Environmental Related Polymer Materials of Ministry of Education, Northwest Normal University, Lanzhou 730070, China

Received:2015-04-10 Online:2015-09-10 Published:2015-08-17
Contact: SHI Yanlong E-mail:yanlongshi726@126.com
Supported by:
† Supported by the National Nature Science Foundation of China(No.20873101) and the President Fund of Hexi University, China(No.XZ201304)

摘要/Abstract

摘要：

采用溶胶-凝胶法制得ZnO溶胶, 以棉织物为基底, 在其表面浸涂ZnO溶胶, 再经辛基三甲氧基硅烷表面修饰后显示出超疏水性和超亲油性, 水滴和油滴在其表面的接触角分别为152°和0°. 利用棉织物表面的超疏水性和超亲油性, 可以实现对油水混合物中油和水的有效分离. 为防水服饰的设计、超疏水/超亲油材料的制备及在油水混合物的分离与应用提供借鉴.

关键词: 超疏水, 超亲油, 棉织物, ZnO溶胶, 油水分离

Abstract:

ZnO colloids were firstly prepared by sol-gel method, and then, cotton fabric with superhydrophobicity and superoleophilicity was fabricated by dipping-coating ZnO colloids and subsequently modifying the surface with octyltrimethoxysilane, contact angles of water and oil droplet on the surface was about 152° and 0°, respectively. The cotton fabric with superhydrophobicity and superoleophilicity can be applied to separate oil or water from water-oil mixtures with high efficiency. The research are expected to offer references for the design of waterproof clothing, fabrication of superhydrophobic-superoleophilic material and its application in the separation of oil-water mixtures.

Key words: Superhydrophobic, Superoleophilic, Cotton fabric, ZnO colloid, Oil-water separation

中图分类号:

O647.5

TrendMD:

石彦龙, 杨武, 冯晓娟. 超疏水-超亲油棉织物的制备及在油水分离中的应用. 高等学校化学学报, 2015, 36(9): 1724.

SHI Yanlong, YANG Wu, FENG Xiaojuan. Fabrication of Superhydrophobic-superoleophilic Cotton Fabric and Its Application in Water-oil Separation^†. Chem. J. Chinese Universities, 2015, 36(9): 1724.

图/表 5

Fig.1 SEM images of superhydrophobic/superoleophilic cotton fabric treated by dip-coating ZnO colloids and surface modification with OTS Dip-coating times: (A) 1; (B) 1; (C) 2; (D) 3; (E) 4; (F) 5. Insets are images of water droplets on cotton fabric.

Fig.2 Correlations of dip-coating times with contact angles(CA) on superhydrophilic and superhydrophobic cotton fabric before(b) and after(a) modification with OTS

Fig.3 XPS spectra of cotton fabric with superhydrophobicity(A) Full spectrum of ZnO colloids modified by OTS; (B)Si2p; (C) Zn2p.

Fig.4 Schematic diagram of fabrication and formation mechanism of cotton fabric with superhydrophobicity and superoleophilicity

Fig.5 Separation process of water-oil mixture executed by superhydrophobic and superoleophilic cotton fabricDiesel oil was dyed with Oil Red. (A) Simple device for oil-water separation; (B) oil-water mixtures in cylinder before

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超疏水-超亲油棉织物的制备及在油水分离中的应用

Fabrication of Superhydrophobic-superoleophilic Cotton Fabric and Its Application in Water-oil Separation^†

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超疏水-超亲油棉织物的制备及在油水分离中的应用

Fabrication of Superhydrophobic-superoleophilic Cotton Fabric and Its Application in Water-oil Separation†

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Fabrication of Superhydrophobic-superoleophilic Cotton Fabric and Its Application in Water-oil Separation^†