Synthesis of mesoporous Fe3Si aerogel as a photo-thermal material for highly efficient and stable corrosive-water evaporation

2018 ◽  
Vol 6 (46) ◽  
pp. 23263-23269 ◽  
Author(s):  
Fengyu Zhang ◽  
Yaguang Li ◽  
Xianhua Bai ◽  
Shufang Wang ◽  
Baolai Liang ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Thermal Efficiency ◽  
Evaporation Rate ◽  
Solar Thermal ◽  
Water Evaporation ◽  
Sunlight Irradiation ◽  
Highly Efficient ◽  
Full Absorption

Fe3Si aerogel is a new photothermal material with full absorption of sunlight, excellent anti-corrosion resistance and 2–3 nm sized pores, showing high solar-thermal efficiency of 91.8% and remarkable water evaporation rate of 2.08 kg m−2 h−1 in seawater, and 1 kg m−2 h−1 in strong corrosive solutions under one sunlight irradiation.

Carrot-inspired solar thermal evaporator

2019 ◽  
Vol 7 (47) ◽  
pp. 26911-26916 ◽  
Author(s):  
Yaojia Long ◽  
Shaolong Huang ◽  
Huan Yi ◽  
Jiaqi Chen ◽  
Jiahao Wu ◽  
...  
Keyword(s):  
Evaporation Rate ◽  
Solar Thermal ◽  
Water Evaporation ◽  
Thermal Evaporator

A carrot-inspired solar thermal evaporator exhibits a water evaporation rate of 2.04 kg m−2 h−1 and an outstanding durability and stability.

Rational design of reduced graphene oxide film for solar thermal desalination

2019 ◽  
Vol 19 (6) ◽  
pp. 1704-1710
Author(s):  
Yuan Meng ◽  
Haibo Li
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Rational Design ◽  
Evaporation Rate ◽  
Pure Water ◽  
Cost Effective ◽  
Solar Thermal ◽  
Water Evaporation ◽  
Reduced Graphene ◽  
Thermal Desalination

Abstract Solar water evaporation assisted by photothermal membranes is considered to be one of the sustainable and cost-effective strategies for pure water generation and wastewater treatment. In this work, a self-assembled reduced graphene oxide (rGO) film has been prepared and proposed for direct solar thermal desalination. The morphology, structure, absorbance and desalination performance of the rGO film are explored. It is found that rGO film with optimized microstructure delivers an evaporation rate of 0.87 kg m−2 h−1 with solar thermal conversion efficiency of 46% under 1 sun illumination. Moreover, the evaporation rate of rGO film remains at 0.86 kg/m2·h−1 after ten times recycling, demonstrating the superior reusability.

ANALYSIS OF THE THERMAL EFFICIENCY OF A SOLAR THERMAL COLLECTOR FOR LOW-INCOME FAMILIES

2018 ◽  
Author(s):  
Julia Maria Massareli Costa ◽  
Guilherme Viana ◽  
Vinicius Cruz ◽  
Felipe Boragina da silva ◽  
Ana Beatriz Valentin ◽  
...  
Keyword(s):  
Low Income ◽  
Thermal Efficiency ◽  
Solar Thermal ◽  
Solar Thermal Collector ◽  
Low Income Families

scholarly journals Highly efficient evaporative cooling by all-day water evaporation using hierarchically porous biomass

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jihun Choi ◽  
Hansol Lee ◽  
Bokyeong Sohn ◽  
Minjae Song ◽  
Sangmin Jeon
Keyword(s):  
Porous Structure ◽  
Fiber Length ◽  
Evaporation Rate ◽  
Water Evaporation ◽  
Thickness Direction ◽  
Hierarchically Porous ◽  
Hierarchically Porous Structure ◽  
Length Direction ◽  
Luffa Sponge ◽  
Fiber Thickness

AbstractWe developed a 3D solar steam generator with the highest evaporation rate reported so far using a carbonized luffa sponge (CLS). The luffa sponge consisted of entangled fibers with a hierarchically porous structure; macropores between fibers, micro-sized pores in the fiber-thickness direction, and microchannels in the fiber-length direction. This structure remained after carbonization and played an important role in water transport. When the CLS was placed in the water, the microchannels in the fiber-length direction transported water to the top surface of the CLS by capillary action, and the micro-sized pores in the fiber-thickness direction delivered water to the entire fiber surface. The water evaporation rate under 1-sun illumination was 3.7 kg/m2/h, which increased to 14.5 kg/m2/h under 2 m/s wind that corresponded to the highest evaporation rate ever reported under the same condition. The high evaporation performance of the CLS was attributed to its hierarchically porous structure. In addition, it was found that the air temperature dropped by 3.6 °C when the wind passed through the CLS because of the absorption of the latent heat of vaporization. The heat absorbed by the CLS during water evaporation was calculated to be 9.7 kW/m2 under 1-sun illumination and 2 m/s wind, which was 10 times higher than the solar energy irradiated on the same area (1 kW/m2).

Carbon nanomaterials treated by combination of oxidation and flash for highly efficient solar water evaporation

Chemosphere ◽  
2021 ◽  
pp. 130248
Author(s):  
Chang Cong ◽  
Min Gao ◽  
Guangyu Xing ◽  
Ying Wu ◽  
Lu Liu ◽  
...  
Keyword(s):  
Carbon Nanomaterials ◽  
Water Evaporation ◽  
Solar Water ◽  
Highly Efficient

A Hydrogenated Metal Oxide with Full Solar Spectrum Absorption for Highly Efficient Photothermal Water Evaporation

2020 ◽  
Vol 11 (7) ◽  
pp. 2502-2509 ◽  
Author(s):  
Qing Zhu ◽  
Ke Ye ◽  
Wen Zhu ◽  
Wenjie Xu ◽  
Chongwen Zou ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Solar Spectrum ◽  
Water Evaporation ◽  
Highly Efficient
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