CHAPTER 6. Biomimetic Materials for Efficient Atmospheric Water Collection

Author(s):  
Lianbin Zhang ◽  
Peng Wang
Nano Energy ◽  
2020 ◽  
Vol 74 ◽  
pp. 104922 ◽  
Author(s):  
Feng Gong ◽  
Hao Li ◽  
Qiang Zhou ◽  
Mingzhou Wang ◽  
Wenbin Wang ◽  
...  

Author(s):  
Zaid Almusaied ◽  
Bahram Asiabanpour

The continuous growth in the human population and climate change exacerbates the problems related to water scarcity. Harvesting the atmospheric water can mitigate the water scarcity in many regions around the globe. Fog collection using hybrid hydrophilic-superhydrophobic surfaces has the capacity to achieve a higher water collection rate. In this paper, a new method and materials are introduced to create the hybrid surfaces. The method includes additive manufacturing- to make sheets with holes-, mixing and casting polymeric matrix composite, and a controlled spray coating mechanism. The materials comprised of hydrophobic coating on top of the acrylic printed sheet and hydrophilic composite. The ratios of the pitches to diameters of the hydrophilic regions varied during the experiments to obtain the best water generation. The water collection rate for the sample with diameters of 583 um and a pitch of 1600 um has achieved 57% more than the untreated hydrophilic sample. The contrast in wettability accomplished by this novel method has the potential to be implemented on a large scale for atmospheric water harvesting.


2021 ◽  
pp. 122572
Author(s):  
Fangcao Wang ◽  
Xiang Zhang ◽  
Qingqing Wang ◽  
Yunpeng Xie ◽  
Cong Wang ◽  
...  

2018 ◽  
Vol 9 (3S) ◽  
pp. 844
Author(s):  
N.A. Zol ◽  
N.H.M. Isa ◽  
N.R Awang ◽  
M.I. Ahmad ◽  
M.S.M. Rasat ◽  
...  

2020 ◽  
Vol 15 (2) ◽  
pp. 253-276 ◽  
Author(s):  
Hasila Jarimi ◽  
Richard Powell ◽  
Saffa Riffat

Abstract The scope of this paper is to review different types of sustainable water harvesting methods from the atmospheric fogs and dew. In this paper, we report upon the water collection performance of various fog collectors around the world. We also review technical aspects of fog collector feasibility studies and the efficiency improvements. Modern fog harvesting innovations are often bioinspired technology. Fog harvesting technology is obviously limited by global fog occurrence. In contrast, dew water harvester is available everywhere but requires a cooled condensing surface. In this review, the dew water collection systems is divided into three categories: i) dew water harvesting using radiative cooling surface, ii) solar-regenerated desiccant system and iii) active condensation technology. The key target in all these approaches is the development of an atmospheric water collector that can produce water regardless of the humidity level, geographical location, low in cost and can be made using local materials.


Author(s):  
M. Sarikaya ◽  
J. T. Staley ◽  
I. A. Aksay

Biomimetics is an area of research in which the analysis of structures and functions of natural materials provide a source of inspiration for design and processing concepts for novel synthetic materials. Through biomimetics, it may be possible to establish structural control on a continuous length scale, resulting in superior structures able to withstand the requirements placed upon advanced materials. It is well recognized that biological systems efficiently produce complex and hierarchical structures on the molecular, micrometer, and macro scales with unique properties, and with greater structural control than is possible with synthetic materials. The dynamism of these systems allows the collection and transport of constituents; the nucleation, configuration, and growth of new structures by self-assembly; and the repair and replacement of old and damaged components. These materials include all-organic components such as spider webs and insect cuticles (Fig. 1); inorganic-organic composites, such as seashells (Fig. 2) and bones; all-ceramic composites, such as sea urchin teeth, spines, and other skeletal units (Fig. 3); and inorganic ultrafine magnetic and semiconducting particles produced by bacteria and algae, respectively (Fig. 4).


Waterlines ◽  
1993 ◽  
Vol 12 (2) ◽  
pp. 20-22 ◽  
Author(s):  
Roland Wahlgren

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