Abstract
In this paper, a novel and recyclable method based on PC-Cu(OH)2 was fabricated by combining nickel activation process and the hydrazine reduction chemical plating copper reaction system to separate oil/water mixture effective. The dodecoic acid and sodium hydroxide surface modification realized rapid wettability transition between superhydrophobicity and superhydrophilicity, which makes it possible to separate oil/water/oil mixture with no extra treatment. In addition, the separation efficiency could still remain high separation efficiency (∼97.0%) after 80 separation cycles even under 5 times of reversible wettability transformation from superhydrophobicity to superhydrophilicity. This study may pave a novel strategy with a continuous process for handing oil spills and low-cost environmental protection with PC-Cu(OH)2 in future work.
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