A low-cost, high-efficiency, new generation material for fog harvesting fumed silica-doped polypropylene

This study describes the development of a fog collector material for fog harvesting. Polypropylene (PP) doped with fumed silica (0–2%) was punctured at equal intervals and exposed to fog produced by a humidifier. The amount of water harvested by each sample was measured using an ultrasonic fogger. P...

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Bibliographic Details
Published in:npj clean water 2021-04, Vol.4 (1), p.1-9, Article 24
Main Author: Kari̇per, İ. Afşin
Format: Article
Language:English
Subjects:
639/638/440/94
639/638/455
639/638/542
704/106/242
704/242
Aquatic Pollution
Arid regions
Arid zones
Doping
Earth and Environmental Science
Environment
Fog
Joint ventures
Low cost
Moisture content
Nanotechnology
Polymers
Polypropylene
Silica
Silica fume
Silicon dioxide
Silicones
Surface tension
Waste Water Technology
Water content
Water harvesting
Water Industry/Water Technologies
Water Management
Water Pollution Control
Water Quality/Water Pollution
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Summary:This study describes the development of a fog collector material for fog harvesting. Polypropylene (PP) doped with fumed silica (0–2%) was punctured at equal intervals and exposed to fog produced by a humidifier. The amount of water harvested by each sample was measured using an ultrasonic fogger. Polypropylene doped with 1% fumed silica was most effective at harvesting water, and collected almost 19–20 times more water than pure polypropylene. This improvement is due to the surface tension, which decreased from 16.754 mN/m (pure PP) to 13.512 and 9.992 mN/m (0.5% and 1% fumed silica, respectively). On the other hand, when fumed silica doping exceeded 1%, this increased the polymer’s surface tension, measured as 20.6 and 38.1 mN/m for 1.5 and 2% fumed silica doping. We therefore propose fog harvesting using 1% fumed silica-doped polypropylene as a low-cost method for collecting clean water in arid regions.
ISSN:2059-7037
2059-7037
DOI:10.1038/s41545-021-00117-2