Oil/water separation on structure-controllable Cu mesh: Transition of superhydrophilic-superoleophilic to superhydrophobic-superoleophilic without chemical modification

Four different surface morphologies, including needle-like, bamboo leaf-like, pine needle-like, and peony flower-like structures, were prepared on Cu mesh surface, and the existence of these different surface morphologies were due to the formation of Cu(OH)2 or CuO microstructures by controlling the...

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