Journal
ENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume 54, Issue 24, Pages 16240-16248Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.est.0c05449
Keywords
slar-driven desalination; sit-shaped pore; ciled morphology; wter transfer; slt rejection
Categories
Funding
- National Natural Science Foundation of China [21701181]
- Fundamental Research Funds for the Central Universities [DUT20RC(3)022]
Ask authors/readers for more resources
Aiming at the global water scarcity, solar-driven desalination based on photothermal materials is identified as a promising strategy for freshwater production because of sustainability, spontaneity, and flexibility. Water transfer in photothermal materials, especially ones with 3D morphologies, can adjust the evaporation efficiency as a critical factor. In this work, a rationally designed roll morphology has been introduced into photothermal to advance the water transfer evaporation via controllable capillary action. The vertical intervals of the roll, similar to slit pore, can pump the water up to the entire materials to not only keep a stable vapor generation rate but reject salt precipitation. Additionally, the roll morphology also improves the light-harvesting via both the high roughness surface and confinement absorption inside the intervals. With excellent water transfer and energy management, photothermal roll showed an evaporation rate up to 1.93 +/- 0.05 kg m(-2) h(-1), which was over 44% higher than the flat sample in the same constituents. Under actual conditions, the freshwater generation rate was achieved up to 1.09 kg m(-2) h(-1) on average of the whole daylight hours. The work provides novel insights into the design of efficient morphology in photothermal materials and advances their practical applications in sustainable water generation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available