| Abstract
| - Zinc oxide (ZnO) surfaces with controllable structures (i.e, microstructure, nanostructure, and micronanobinarystructure) have been created by controlling pH at <4 or >10.5 in the Zn(gray) + H2O2 reaction. The resulting surfaceshows superhydrophobicity. It is found that the water contact angle (CA) of the surface with micronanobinary structureis greater than that of nanostructure and that of nanostructure is greater than that of the microstructure. Theoreticalanalysis is completely in agreement with the experimental results.
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