Abstract
We present a dual-templating method to synthesize a biomimetic 3D ordered multimodal porous carbon (3DOMPC) using the phenolic resol as a carbon source and the amphiphilic triblock copolymer surfactant (F127) as the mesopore-generating agent on the polystyrene colloidal crystal scaffold. The biomimetic 3DOMPC shows the brilliant structural color originating from the periodical, hierarchical ordered porous structure. More importantly, the resulting 3DOMPC exhibits hydrophobicity (water contact angle, 120°) and superoleophilicity (oil contact angle, 0°) with high oil absorption capacity, which can effectively and selectively collect oil from water surface, providing a potential candidate to the traditional oil-absorbent materials for the oil–water separation.
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