Mercury Ion Responsive Wettability and Oil/Water Separation

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...

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Published inACS applied materials & interfaces Vol. 6; no. 16; pp. 13324 - 13329
Main Authors Xu, Liangxin, Liu, Na, Cao, Yingze, Lu, Fei, Chen, Yuning, Zhang, Xiaoyong, Feng, Lin, Wei, Yen
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 27.08.2014
Subjects
mercury ion
wettability
oil/water separation
response
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Summary: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° after immersion in Hg2+ solution. This mesh is an ideal candidate for oil-polluted water purification, especially for water that contains Hg2+ contaminant.
Bibliography:SourceType-Other Sources-1
ObjectType-Article-2
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ObjectType-Correspondence-1
ISSN:1944-8244
1944-8252
DOI:10.1021/am5038214