Environmental pollution and clean water production are challenges to the development of human society. In this paper, devices consisting of a superhydrophobic Ni-CoFeO foam layer (floating layer), a hydrophilic channel and a superhydrophilic Ni-CoFeO foam layer (photothermal conversion layer) were designed. The light energy was converted into heat on the photothermal layer, for which the hydrophilic channel provided a small amount of water. The superhydrophobic layer ensured the floating and selective adsorption of organic solvents on the water surface, whose contact angle reached 157°, and the steam production rate reached 1.68 kg·m·h. Finally, the LSV curve demonstrated that the Ni-CoFeO foam prepared had a minimum starting potential, achieving the multifunctionality of the Ni foam.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9104273PMC
http://dx.doi.org/10.3390/nano12091531DOI Listing

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