Xu Liangxin, Liu Na, Cao Yingze, Lu Fei, Chen Yuning, Zhang Xiaoyong, Feng Lin, Wei Yen
Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China.
ACS Appl Mater Interfaces. 2014 Aug 27;6(16):13324-9. doi: 10.1021/am5038214. Epub 2014 Aug 13.
A novel Hg(2+) 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 Hg(2+) and poly(acrylic acid) . The reversible change in oil contact angle of as-prepared mesh is about 149° after immersion in Hg(2+) solution. This mesh is an ideal candidate for oil-polluted water purification, especially for water that contains Hg(2+) contaminant.
报道了一种具有聚丙烯酸水凝胶涂层的新型汞离子响应型油水分离网。该网能够分离油和水，这是由于其表面聚丙烯酸水凝胶涂层具有超亲水性，并且基于汞离子与聚丙烯酸之间的螯合作用实现润湿性的切换。制备好的网浸入汞离子溶液后，其油接触角的可逆变化约为149°。这种网是油污染水净化的理想选择，特别是对于含有汞离子污染物的水。
