Mercury Ion Responsive Wettability and Oil/Water Separation

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• 作者：Liangxin Xu ; Na Liu ; Yingze Cao ; Fei Lu ; Yuning Chen ; Xiaoyong Zhang ; Lin Feng ; Yen Wei
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2014
• 出版时间：August 27, 2014
• 年：2014
• 卷：6
• 期：16
• 页码：13324-13329
• 全文大小：415K
• ISSN：1944-8252

文摘

A novel Hg²⁺ responsive oil/water separation mesh with poly(acrylic acid) hydrogel coating is reported. The mesh can separate oil and water because of the superhydrophilicity of the poly(acrylic acid) hydrogel coating on the mesh, and switch the wettability based on the chelation between Hg²⁺ and poly(acrylic acid) . The reversible change in oil contact angle of as-prepared mesh is about 149掳 after immersion in Hg²⁺ solution. This mesh is an ideal candidate for oil-polluted water purification, especially for water that contains Hg²⁺ contaminant.

Keywords:

mercury ion; response; wettability; oil/water separation