Three-Dimensional Wood-Inspired Bilayer Membrane Device Containing Microchannels for Highly Efficient Solar Steam Generation

Wang, Linfeng; Liu, Changjun; Wang, Han; Xu, Yuan; Ma, Sitian; Zhuang, Yan; Xu, Weilin; Cui, Weigang; Yang, Hongjun

doi:10.1021/acsami.0c04740

Cited by 46 publications

(28 citation statements)

References 34 publications

(33 reference statements)

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“…Recent research on generating solar steam has focused primarily on exploring photothermal materials with high absorption in the solar spectrum. Many researchers have investigated plasmonic absorbers [29] and noble metallic and nonmetallic nanoparticles such as NiO nanoparticles, [30] MoS 2 nanosheets, [31][32][33][34] processed wood, [35][36][37] activated carbon, [38,39] carbon nanotube, [40][41][42] carbon black, [43][44][45] carbon foam, [43,[45][46][47] carbon fiber, [48][49][50] graphene and graphene oxide, [39,[51][52] Au nanoparticles [53][54][55][56][57] on finding efficient photothermal conversion materials for the top layer to absorb the incident solar irradiation and convert it into heat energy. Many research groups [58][59][60][61] demonstrated the use of 3D porous graphene/carbon hybrid aerogels as photothermal material and achieved significantly higher photothermal efficiency under 1 sun (1 sun = 1 kW m −2 ) illumination.…”

Section: Introductionmentioning

confidence: 99%

Solar Driven Interfacial Steam Generation Derived from Biodegradable Luffa Sponge

Saleque

Ahmed

et al. 2021

Advanced Sustainable Systems

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energy sector's two-superseding obstacles on the road to a sustainable future. [1][2][3] As the proven reserves of fossil fuels decrease, renewable energy sources have been sought in high demand, of which solar power is the most promising and potentially limitless source of energy in the foreseeable future. The energy from the sun to the earth is as high as 3 × 10 24 Jules per year, just 0.1% of the total solar resource would be sufficient to satisfy the annual worldwide energy demand. At present, solarsteam generation, which particularly refers to solar vapor under 100 °C, is considered to be one of the most promising sectors among other solar energy harvesting technologies owing to its potential applications in modern power plants, chemical plants, liquid-liquid phase separation, water purification and desalination, wastewater treatment, and many others. [4,[7][8][9][10][11][12][13][14] Among which water purification and desalination are gaining a lot of interest due to the recent lack of drinkable clean water supplies across the globe. Other competitive technologies for the production of freshwater, such as solid-liquid extraction, [13,15] electrochemical analysis [16,17] membrane-based separation, [18,19] etc. have many drawbacks, including high energy usage, possible environmental emissions, high infrastructure capital costs, etc.However, the efficiency of the traditional solar-steam generation method is below 24%, even with a high optical concentration ratio. [20] The traditional approach involves water evaporation by converting solar radiation directly to heat for steam generation commonly by using bulk metals. These bulk metals are inefficient in absorbing the solar spectrum and transferring heat through bulk water. As a consequence, its performance is limited by localized heat generation and transfer losses. [12,20,21] By contrast, interfacial solar vapor generation (ISVG) can localize the heat on the evaporation surface and, rather than the whole water, selectively heating the evaporation portion to minimize heat transfer to the water and significantly increase the solar evaporation efficiency. Therefore, ISVG has emerged as a novel concept for the solar steam generation with higher efficiency, attributes to the recent developments in nanoscale structural design with efficient photon and thermal management known as photothermal conversion materials. [1,[22][23][24][25][26] The photothermal conversion materials should have strong solar absorption and low thermal conductivity to achieve greater efficiency. [6,12] Moreover, it is also desirable to have superior hydrophilicity and porosity for fast water and A chemically treated luffa sponge (LS) derived from the ripe fruit of the Luffa cylindrica (LC) plant is investigated as an efficient solar photothermal conversion material for water purification applications for the very first time. Hydrophilicity and solar absorbance of the LS are enhanced by dopamine treatment and candle soot surface coating. The fabricated surface modified LS (SM-LS) leads to a sup...

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Section: Introductionmentioning

confidence: 99%

Solar Driven Interfacial Steam Generation Derived from Biodegradable Luffa Sponge

Saleque

Ahmed

et al. 2021

Advanced Sustainable Systems

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“…In order to overcome this limitation, phase inversion at low temperature condition was employed to fix the aligned porous structure. Previous report indicated that PAN and cellulose foam with aligned porous structure similar to wood structure was obtained by ice template 10,11 …”

Section: Introductionmentioning

confidence: 97%

“…A hierarchically aligned porous structure in wood has been found to enable the rapid transport of electrons and ions, and has been widely used in many emerging areas, including energy, 1–3 the environment, 4–6 and biomedicine 7–9 . In order to overcome some of the limitations of wood with its hierarchically aligned porous structures on non‐reproducible structures and their constituent non‐homogeneity, our group has designed and prepared a polyacrylonitrile (PAN) and cellulose scaffold with a hierarchically aligned porous structure similar to wood by using an ice template for the application of solar steam generation 10–12 …”

Section: Introductionmentioning

confidence: 99%

“…Freeze drying is a novel method to design and prepare porous materials with aligned vertically porous structure for the application in tissue engineering, 18 drug‐controlled release system 19 and solar steam generation 10 . Many types of porous materials such as aligned porous materials and hybrid porous materials, have been successfully prepared by freeze drying 20 .…”

Section: Introductionmentioning

confidence: 99%

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Wood‐inspired polyacrylonitrile foam with hierarchically aligned porous structure for application in water purification

Liu

et al. 2021

J of Applied Polymer Sci

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The main purpose of this study is to verify the excellent absorption efficiency of polyacrylonitrile (PAN) foam which has a hierarchically aligned porous structure similar to wood for water purification. Ice template and freeze drying method was employed to prepare the PAN foam, and the performance of the prepared sample was characterized by advanced technology. Experimental data revealed that the micromorphology, absorption efficiency, and mechanical properties were tunable by controlling the polymer concentration in solution. The PAN foam prepared at 7 wt% not only had excellent absorption efficiency, but also had great water flux. The highest absorption efficiency of the PAN foam prepared at 7 wt% for the model dye, methylene blue, reached 97.83%. Therefore, a new strategy for water purification by filtration using a scaffold with a hierarchically aligned porous structure is possible.

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“…[ 10 ] Recently, interfacial evaporation using a porous photothermal material to float on the evaporation interface has achieved a local heating effect and limited the heat loss to bulk water, and thus led to higher thermal efficiency. [ 11–17 ]…”

Section: Introductionmentioning

confidence: 99%

Simple Hierarchical Interface Design Strategy for Accelerating Solar Evaporation

Wang

et al. 2020

Macro Materials & Eng

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Interface design is an efficient way to improve the steam generation performance of solar evaporators. Accompanied with the formation of cellulose nanofiber/polylactic acid/polyaniline (PANI) hybrid aerogel (HA) by Pickering emulsion and in situ polymerization, this paper proposes a new perspective of hierarchical interface design strategy to accelerate the water evaporation driven by solar energy. By changing the concentration and type of doped acid, the distribution gap of different PANI forms in HA can be microscopically designed. PANI nanoclusters with smaller gaps facilitate HA to achieve an improved light absorption, photothermal conversion capability and steam generation rate. Moreover, macro interface design introduces hemispherical depression structures to the HA surface through a simple mold. These recessed surfaces not only increase the light absorption by increasing the multiple reflections and refractions of light on the recesses, but also recover part of the heat radiation loss to the environment. A higher evaporation rate of 1.65 kg m−2 h−1 with a steam generation efficiency of 94.6% is achieved under the irradiation of 1 Sun (100 mw cm−2). Finally, HAs have strong purification ability for various raw water, and are promising in terms of their application potential in the field of energy conversion.

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Three-Dimensional Wood-Inspired Bilayer Membrane Device Containing Microchannels for Highly Efficient Solar Steam Generation

Cited by 46 publications

References 34 publications

Solar Driven Interfacial Steam Generation Derived from Biodegradable Luffa Sponge

Solar Driven Interfacial Steam Generation Derived from Biodegradable Luffa Sponge

Wood‐inspired polyacrylonitrile foam with hierarchically aligned porous structure for application in water purification

Simple Hierarchical Interface Design Strategy for Accelerating Solar Evaporation

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