Abstract

We report a simple method for fabricating a lotus-like micro–nanoscale binarystructured surface of copper phosphate dihydrate. The copper phosphate dihydratenanosheets were generated by galvanic cell corrosion of a copper foil with aqueousphosphorus acid solution drops and dried in an oxygen gas atmosphere, and theyself-organized into a film with a lotus-like micro–nanoscale binary structuredsurface. The wettability of this surface can be changed from superhydrophilicto highly hydrophobic or superhydrophobic by heating or modifying it with ann-dodecanethiol monolayer.

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