Preparation of Gluconic Acid Modified High Flux Stainless Steel Mesh and its Oil/Water Separation Performance

被引：0

作者：

Yang X.-H. ^{[1
]}

Wang Z.-Y. ^{[1
]}

Cao J.-J. ^{[1
]}

Wang W. ^{[1
]}

Wu R.-L. ^{[1
]}

机构：

[1] Key Laboratory Oil & Gas Fine Chemical, Ministry of Education & Xinjiang Uyghur Autonomous Region, Chemistry and Chemical Engineering of Xinjiang University, Urumqi

来源：

Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2018年 / 32卷 / 06期

关键词：

Corrosion resistance; D- gluconic acid; High flux; Oil/water separation; Stainless steel mesh; Superhydrophilic and underwater superoleophobic;

D O I：

10.3969/j.issn.1003-9015.2018.06.030

中图分类号：

学科分类号：

摘要：

Stainless steel (SS) mesh etched with HCl and modified with gluconic acid (GA) via one-step immersion (GAG-mesh) was prepared and the mesh had properties of superhydrophilicity and underwater superoleophobicity. Surface morphology and chemical composition of GAG-mesh were characterized by SEM and XPS, respectively. The results show that GA is successfully adsorbed onto the surface with rough micro-nanostructure surface. Surface wettability was tested by contact angle (CA) measurement. The results show that CA of water on its surface is 0° in air while it is greater than 150° under water. GAG-mesh can effectively separate oil-water mixtures with over 98% separation efficiency and 140 L∙(m 2 ∙s) -1 separation flux. The separation efficiency of n-hexane/water mixture is more than 99.5% after using for 40 times. Moreover, its separation ability is excellent even in corrosive environment. This separation approach is simple and no electrical and mechanical equipment is needed, which has great application potential. © 2018, Editorial Board of Journal of Chemical Engineering of Chinese Universities". All right reserved."

引用

页码：1465 / 1472

页数：7

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