The use of renewable materials as structural components for constructing superhydrophobic coatings is an important direction for future development. Here, a robust and photothermal superhydrophobic coating (with a water contact angle of 166.1 ± 0.8° and a sliding angle of 2.8 ± 0.1°) is fabricated using dual–size lignin micro–nanospheres (LMNSs), comprising lignin microspheres (m–LMNSs) and nanospheres (n–LMNSs), which successively settle on the substrate surface under the effect of gravity. The microstructure armor formed by the combin...
