材料科学
蒸馏水
接触角
海水
蒸发
化学工程
纳米颗粒
氧化钛
人工海水
复合材料
纳米技术
化学
色谱法
工程类
地质学
物理
海洋学
热力学
作者
Balraj Krishnan Tudu,Varun Gupta,Ayush Kumar,Apurba Sinhamahapatra
标识
DOI:10.1016/j.jcis.2020.01.079
摘要
Fabrication of a multipurpose superhydrophobic mesh via modification of a galvanized steel mess using black titanium oxide nanoparticles and perfluorodecyltriethoxysilane is reported. Modified mesh exhibits superhydrophobicity with a water static contact angle of 157° ± 2 along with a tilt angle of 5° ± 1 and suitable chemical, thermal, mechanical stability, and self-cleaning ability. The droplet dynamic behavior of superhydrophobic mesh revels the impact velocity is 1.5 ms−1 for splashing of the water droplet. The developed mesh is studied for freshwater generation from oily water and seawater via efficient oil-water separation and solar evaporation, respectively. A proficiency of 99% and 88% is achieved for oil-water separation from mixture and emulsion, respectively. Solar evaporation efficiency of 64% and 76% are recorded under low-intensity light (225 Wm−2) and natural sunlight (591 Wm−2), respectively, from distilled water. For seawater, the evaporation efficiency of 69% is achieved under natural sunlight. Present approach can be applied to any size and shape of the mesh and has great industrial applications.
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