@article{Liu2022, 
author = {Yijie Liu and Yujun Guo and Xueqin Zhang and Guoqiang Gao and Chaoqun Shi and Guizao Huang and Pengli Li and Qi Kang and Xingyi Huang and Guangning Wu},
title = {Self-cleaning of superhydrophobic nanostructured surfaces at low humidity enhanced by vertical electric field},
year = {2022},
journal = {Nano Research},
volume = {15},
number = {5},
pages = {4732-4738},
keywords = {self-cleaning, electric field, low humidity, electro-aggregation, superhydrophobic nanostructured surface},
url = {https://www.sciopen.com/article/10.1007/s12274-022-4093-0},
doi = {10.1007/s12274-022-4093-0},
abstract = {Self-cleaning is the key factor that makes superhydrophobic nanostructured materials have wide applications. The self-cleaning effect, however, strongly depends on formations and movement of water droplets on superhydrophobic nanostructured surfaces, which is greatly restricted at low humidity (< 7.6 g·kg−1). Therefore, we propose a self-cleaning method at low humidity in which the pollution is electro-aggregated and driven in the electric field to achieve the aggregation and cleaning large areas. The cleaning efficiency of this method is much higher than that of water droplet roll-off, and will not produce “pollution bands”. A simplified numerical model describing pollution movements is presented. Simulation results are consistent with experimental results. The proposed method realizes the self-cleaning of superhydrophobic nanostructured surfaces above dew point curve for the first time, which extends applications of superhydrophobic nanostructured materials in low humidity, and is expected to solve self-cleaning problems of outdoor objects in low humidity areas (< 5.0 g·kg−1).}
}