Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1021/acsami.7b16379 |
Effects of Engineered Wettability on the Efficiency of Dew Collection | |
Gerasopoulos, Konstantinos1; Luedeman, William L.1; Olceroglu, Emre2; McCarthy, Matthew2; Benkoski, Jason J.1 | |
通讯作者 | Benkoski, Jason J. |
来源期刊 | ACS APPLIED MATERIALS & INTERFACES
![]() |
ISSN | 1944-8244 |
出版年 | 2018 |
卷号 | 10期号:4页码:4066-4076 |
英文摘要 | Surface wettability plays an important role in dew collection. Nucleation is faster on hydrophilic surfaces, while droplets slide more readily on hydrophobic surfaces. Plants and animals in coastal desert environments appear to overcome this trade-off through biphilic surfaces with patterned wettability. In this study, we investigate the effects of millimeter-scale wettability patterns, mimicking those of the Stenocara beetle, on the rate of water collection from humid air. The rate of water collection per unit area is measured as a function of subcooling (Delta T = 1, 7, and 27 degrees C) and angle of inclination (from 10 to 90). It is then compared for superbiphilic, hydrophilic, hydrophobic, and surperhydrophobic surfaces. For large subcooling, neither wettability nor tilt angle has a significant effect because the rate of condensation is so great. For 1 degrees C subcooling and large angles, hydrophilic surfaces perform best because condensation is the rate-limiting step. For low angles of inclination, superhydrophobic samples are best because droplet sliding is the rate-limiting step. Superbiphilic surfaces, in contrast to their superior fog collecting capabilities, generally collected dew at the slowest rate due to their inherent contact angle hysteresis. Theoretical considerations suggest that this finding may apply more generally to surfaces with patterned wettability. |
英文关键词 | condensation wetting hysteresis biphilic superhydrophobic |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000424728800103 |
WOS关键词 | WATER CAPTURE ; SUPERHYDROPHILIC SURFACES ; DROPWISE CONDENSATION ; DESERT BEETLE ; DISTILLATION ; PIPES |
WOS类目 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/207145 |
作者单位 | 1.Johns Hopkins Univ, Appl Phys Lab, Res & Exploratory Dev Dept, Laurel, MD 20723 USA; 2.Drexel Univ, Dept Mech Engn & Mech, 3141 Chestnut St, Philadelphia, PA 19104 USA |
推荐引用方式 GB/T 7714 | Gerasopoulos, Konstantinos,Luedeman, William L.,Olceroglu, Emre,et al. Effects of Engineered Wettability on the Efficiency of Dew Collection[J],2018,10(4):4066-4076. |
APA | Gerasopoulos, Konstantinos,Luedeman, William L.,Olceroglu, Emre,McCarthy, Matthew,&Benkoski, Jason J..(2018).Effects of Engineered Wettability on the Efficiency of Dew Collection.ACS APPLIED MATERIALS & INTERFACES,10(4),4066-4076. |
MLA | Gerasopoulos, Konstantinos,et al."Effects of Engineered Wettability on the Efficiency of Dew Collection".ACS APPLIED MATERIALS & INTERFACES 10.4(2018):4066-4076. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。