A new self-desalting solar evaporation system based on a vertically oriented porous polyacrylonitrile foam

Zhang, Qian; Yang, Hongjun; Xiao, Xingfang; Wang, Han; Yan, Lei; Shi, Zhuoxun; Chen, Yali; Xu, Weilin; Wang, Xiaochang C.

doi:10.1039/c9ta03045j

Cited by 132 publications

(51 citation statements)

References 37 publications

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“…[11][12][13][14] To this end, immense efforts have been dedicated to developing an advanced absorber to achieve the above properties. [13][14][15][16][17][18][19][20][21][22][23][24][25][26] So far, multitudinous materials including plasmonic metals, 13,[15][16][17][18] carbon-based nanostructures, 14,[19][20][21][27][28][29] semiconductors 22,23 and bio-inspired materials [24][25][26][30][31][32] have been investigated by researchers to boost the efficiency of solar energy harvesting further. For instance, Zhu's group 18 demonstrated a gold based plasmonic absorber, which has over 90% efficiency under 4 sun (4 kW m À2 ) illumination.…”

Section: Introductionmentioning

confidence: 99%

Low-cost and scalable carbon bread used as an efficient solar steam generator with high performance for water desalination and purification

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Low-cost and scalable carbon bread used as an efficient solar steam generator with high performance for water desalination and purification

et al. 2021

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“…A long-term challenge is to evaluate the performance of solar evaporation devices correctly and uniformly. The current research has a programmatic calculation formula, but it lacks standardised measurement techniques and evaporation calculation efficiency [62]. Therefore, it is unscientific to directly compare the results of different jobs, as even the same material will demonstrate significant differences in evaporation efficiency during different seasons and at different times of the day.…”

Section: Solar-thermal Conversion Mechanisms and Evaluation Standardsmentioning

confidence: 99%

Solar-thermal conversion and steam generation: a review

Shi

Wang

et al. 2020

Applied Thermal Engineering

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Highlights  Solar absorbed materials and their photo-thermal conversion mechanism are reviewed.  The evaluation principle of photo-thermal conversion process are investigated.  Different solar absorbed evaporation methods and system are summarized.  The prospects and challenges of photo-thermal conversion and steam generation are discussed Abstract: Recently, steam generation systems based on solar-thermal conversion have received much interest, and this may be due to the widespread use of solar energy and water sources such as oceans and lakes. The photo-thermal desalination system becomes attractive as it can convert absorbed solar light energy into thermal energy and realise the desalination and water purification of saline water through the evaporation process. In this paper, the research status of solar-thermal conversion materials such as metal-based materials, semiconductor materials, carbon-base materials, organic polymer materials, composite photo-thermal materials and their solar-thermal conversion mechanism in recent years are reviewed. The physical process and evaluation principle of solar-thermal conversion are both carefully introduced. The methods of optimising thermal management and increasing the evaporation rate of a hybrid system are also introduced in detail. Four main applications of solar-thermal conversion technologies (seawater desalination, wastewater purification, sterilisation and power generation) are discussed. Finally, based on the above analysis, the prospects and challenges for future research in the field of desalination are discussed from an engineering and scientific viewpoint to promote the direction of research, in order to stimulate future development and accelerate commercial application.

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“…The chemical potential of the ionic bonds of salt from water is resulting in a lower salt vapor pressure [10,11]. A study using a cup containing saline solution with a specific salinity indicates that the higher the salinity, the lower the evaporation rate [12,13]. However, the crystallized salt has a reasonably low C p NaCl value of 0.853 J/(gK) to accelerate the rise in temperature at the same amount of energy.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Water Salinity and Radiation Intensity to the Temperature Distribution and Evaporation Rate inside Porous Media

2021

Teh. vjesn.

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In the coastal areas, there are found many cases of clean water crisis; the most reasonable solution is to use the solar still from salty seawater. Sea salt concentration levels vary widely in each region depending on ecological conditions and materials carried by the river. This study aims to analyze the effect of salinity and radiation intensity towards the evaporation rate. Several parameters, such as the difference in the mass of the specimen, surface temperature, and evaporation rate were observed. The evaporation rate data shows that concrete with ferrous sand aggregate (particle size of 0.125 mm) has the highest value in which the thermal conductivity value of this specimen is of the highest value as well. Higher salt addition and radiation cause the temperature value that each specimen generated to become higher. Therefore, the FS125, which is concrete with 0.125 mm ferrous sand aggregate, has the best capability of porous media in the absorbent plate of solar still application.

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A new self-desalting solar evaporation system based on a vertically oriented porous polyacrylonitrile foam

Abstract: A new self-desalting evaporation system comprising reduced graphene oxide/cotton fabric and a vertically oriented porous polyacrylonitrile film exhibited excellent self-desalting performance and high photothermal performance.

Cited by 132 publications

References 37 publications

Low-cost and scalable carbon bread used as an efficient solar steam generator with high performance for water desalination and purification

Low-cost and scalable carbon bread used as an efficient solar steam generator with high performance for water desalination and purification

Solar-thermal conversion and steam generation: a review

The Effect of Water Salinity and Radiation Intensity to the Temperature Distribution and Evaporation Rate inside Porous Media

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