High-Efficiency Fog Collector: Water Unidirectional Transport on Heterogeneous Rough Conical Wires
High-Efficiency Fog Collector: Water Unidirectional Transport on Heterogeneous Rough Conical Wires
复制标题
高效集雾器：异质粗糙锥形导线上的水单向传输
DOI：
10.1021/acsnano.6b05595
复制
发表时间：
2016
期刊：
影响因子：
17.1
通讯作者：
Yongmei Zheng
中科院分区：
文献类型：
--
作者：
Ting Xu;Yucai Lin;Miaoxin Zhang;Weiwei Shi;Yongmei Zheng
从仙人掌刺和湿蜘蛛丝中获得灵感，可以制造出一种人造周期性粗糙度梯度锥形铜线。PCCW可以从空气中获取锥形表面周期点上的雾，并在没有外力的情况下将水滴输送很远的距离，这除了几何曲线梯度（产生拉普拉斯压力）和周期粗糙度（产生表面能差）外，还得益于水滴在聚并过程中变形产生的动态释放能量。发现雾的收集能力与不同倾斜角度的导线有关，因此进一步设计了一种带有pccw阵列系统的雾收集器，以实现高效的连续集水过程。因此，收集水对电讯盈科的影响优于以往的结果。这些发现对于开发和设计具有水收集和水运输功能的材料具有重要意义，有望应用于雾水系统，以缓解水危机。
An artificial periodic roughness-gradient conical copper wire (PCCW) can be fabricated by inspiration from cactus spines and wet spider silks. PCCW can harvest fog on periodic points of the conical surface from air and transports the drops for a long distance without external force, which is attributed to dynamic as-released energy generated from drop deformation in drop coalescence, in addition to both gradients of geometric curve (inducing Laplace pressure) and periodic roughness (inducing surface energy difference). It is found that the ability of fog collection can be related to various tilt-angle wires, thus a fog collector with an array system of PCCWs is further designed to achieve a continuous process of efficient water collection. As a result, the effect of water collection on PCCWs is better than previous results. These findings are significant to develop and design materials with water collection and water transport for promising application in fogwater systems to ease the water crisis.