Water bridge solar evaporator with salt-resistance and heat localization for efficient desalination

Luo, Yuqiong; Song, Fei; Wang, Xiuli; Wang, Yu‐Zhong

doi:10.1039/d2ta09244a

Cited by 25 publications

(10 citation statements)

References 63 publications

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“…[20,22,[48][49][50][51][52] Subsequently, the solar absorber was made by transferring the 2D/2D Ti 3 C 2 T x /CuSe hybrids on a hydrophilic cotton piece, which shows a rich micropore and excellent hydrophilicity for water transport. Under onesun irradiation, the as-prepared membrane showed a comparable evaporation rate of 1.893 kg m À2 h À1 and solar-to-vapor efficiency of 99.13%, higher than many 2D membranes reported in previous works (Table S2, Supporting Information), [53][54][55][56][57][58][59][60][61] causing by the over 95% of sunlight absorption and synergetic of plasmonic heating and nonradiative relaxation of carriers in CuSe. Noticeably, the membrane had a good salt resistance, which can treat salt water with more than 20% salinity due to the rich microchannels for ion diffusion.…”

Section: Introductionmentioning

confidence: 67%

“…Noticeably, the evaporation rate of membrane is higher than most MXene-based 2D membranes reported in previous works (Table S2, Supporting Information). [53][54][55][56][57][58][59][60][61] This high solar water evaporation performance can be ascribed to the synergetic effect of light absorption and plasmonic heating of the two plasmon mediums. Figure 6e shows the cyclic evaporation tests, the membrane retains an evaporation rate of about 1.876 kg m À2 h À1 , maintaining 99% of the initial rate after 10 h of irradiation, demonstrating the prominent stability.…”

Section: Resultsmentioning

confidence: 99%

“…Noticeably, the daily water collection of our device and membrane is higher than many previously reported membranes and devices, even the evaporation rates are much higher than our membrane. [55][56][57][58][59][60][61] Moreover, the membrane and device were used for seawater desalination and sewage treatment, which jointly indicate the great potential in drinkable water generation.…”

Section: Introductionmentioning

confidence: 99%

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Dual‐Plasmonic Ti₃C₂T_x/CuSe 2D/2D Solar Absorber and a Hydrophilic Device for Efficient Solar‐Driven Water Collection

Liu,

Xiong,

et al. 2023

Solar RRL

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Solar water evaporation is an emerging technology for drinkable water generation, while it remains a challenge to develop materials and device for efficient water evaporation and collection. Herein, dual‐plasmonic Ti3C2Tx/CuSe two‐dimensional (2D)/2D hybrids are prepared for high‐efficiency solar water evaporation and a hydrophilic device is designed for efficient water collection. The Ti3C2Tx/CuSe hybrids, which monocrystalline CuSe ultrathin nanosheets are chemically bonded with Ti3C2Tx nanosheets, show efficient photothermal conversion owing to the plasmon‐coupling‐induced strong light absorption and fast charge transfer in the 2D/2D interface. By transferring the hybrids on a cotton piece, the Ti3C2Tx/CuSe membrane displays over 95% of solar light absorption, a stable evaporation rate of 1.893 kg m−2 h−1, and solar‐to‐vapor efficiency of 99.13% under one‐sun irradiation. The membrane can also treat water with more than 20 wt% salinity due to the rich microchannel for ion diffusion. Furthermore, a water evaporation device, which the cambered roof is painted with hydrophilic SiO2, is designed for efficient water collection. The treated roof can efficiently reduce the optical loss and transfer the vapor condensation, leading to a high average freshwater generation of 16.4 kg m−2 in a daily (10 h) natural light irradiation, much higher than other reported devices.

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Section: Introductionmentioning

confidence: 67%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dual‐Plasmonic Ti₃C₂T_x/CuSe 2D/2D Solar Absorber and a Hydrophilic Device for Efficient Solar‐Driven Water Collection

Liu,

Xiong,

et al. 2023

Solar RRL

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“…The CVCSF-750@CNTs show great reuse performance with an average evaporation rate of 2.01 kg m –2 h –1 in fresh water (Figure n) and 1.96 kg m –2 h –1 (Figure S22b) in seawater under 1 sun illumination. For comparison, the efficiency and the evaporation rate of current two-dimensional self-floating solar evaporators under 1 sun irradiation are shown in Figure o, ,,− and our CVCSF-750@CNTs exhibits one of the highest evaporation rates with efficient energy utilization.…”

Section: Solar Evaporation Performance Of Cvcsf@cntsmentioning

confidence: 99%

Rational Design of a Hydrophilic Core–Hydrophobic Shell Yarn-Based Solar Evaporator with an Underwater Aerophilic Surface for Self-Floating and High-Performance Dynamic Water Purification

Li,

Liu,

et al. 2024

Nano Lett.

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Interfacial solar vapor generation holds great promise for alleviating the global freshwater crisis, but its realworld application is limited by the efficiently choppy water evaporation and industrial production capability. Herein, a selffloating solar evaporator with an underwater aerophilic surface is innovatively fabricated by weaving core−shell yarns via mature weaving techniques. The core−shell yarns possess capillary water channels in the hydrophilic cotton core and can trap air in the hydrophobic electrospinning nanofiber shell when submerged underwater, simultaneously realizing controllable water supplies, stable self-flotation, and great thermal insulation. Consequently, the self-floating solar evaporator achieves an evaporation rate of 2.26 kg m −2 h −1 under 1 sun irradiation, with a reduced heat conduction of 70.18 W m −2 . Additionally, for the first time, a solar evaporator can operate continuously in water with varying waveforms and intensities over 24 h, exhibiting an outdoor cumulative evaporation rate of 14.17 kg m −2 day −1 .

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“…The 1.56 kg m −2 h −1 evaporation rate is achieved in 15–20 wt% salt‐alkali water. [ 17 ] However, the efficient use of the input solar energy and the converted heat at high salinity is further studied in practical applications.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Phase‐Change Composite Aerogel Materials and Its Application in Solar Saline‐Alkali Water Desalination

Dong,

Cao,

Yan

et al. 2023

Macro Chemistry & Physics

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Solar energy is an inexhaustible clean energy, and solar evaporation salt water desalination is a promising technology. However, the low evaporation efficiency caused by intermittent solar irradiation is still the main obstacle in the practical application of interface evaporation. A new type of interfacial evaporation material is developed by using the porous adsorption method to fill the phase change material (PCM) paraffin (IPW) into the halloysite nanotubes (HNTs), using polydopamine (PDA) as the photothermal material and encapsulation agent and bacterial cellulose (BC) as the carrier. The low‐temperature crosslinking method prepares the IPW@HNTs@ PDA‐BC phase change composite aerogel. The novel interfacial evaporation material preparation process is simple, and the aerogels can be prepared quickly under normal pressure, which overcomes the disadvantages of the traditional porous adsorption method and long‐time freeze‐drying of aerogels. Under 1 kW m−2 light, the evaporation rate of the PCM is 3.43 kg m−2 h−1, and the photothermal conversion efficiency is 95%. In the dark environment (10 min), the evaporation rate is 2.80 kg m−2 h−1, and the photothermal conversion efficiency is 52.8%. The material exhibits excellent evaporation in acidic, alkaline water, and industrial wastewater. Shortly, it can be used as a promising material for evaporating clean water.

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Water bridge solar evaporator with salt-resistance and heat localization for efficient desalination

Abstract: Inadequate freshwater supply in remote and developing areas motivate the growing demand for cost-effective and efficient desalination technologies. Solar-driven interfacial evaporation has emerged as an environmentally method for water desalination....

Cited by 25 publications

References 63 publications

Dual‐Plasmonic Ti₃C₂T_x/CuSe 2D/2D Solar Absorber and a Hydrophilic Device for Efficient Solar‐Driven Water Collection

Dual‐Plasmonic Ti₃C₂T_x/CuSe 2D/2D Solar Absorber and a Hydrophilic Device for Efficient Solar‐Driven Water Collection

Rational Design of a Hydrophilic Core–Hydrophobic Shell Yarn-Based Solar Evaporator with an Underwater Aerophilic Surface for Self-Floating and High-Performance Dynamic Water Purification

Preparation of Phase‐Change Composite Aerogel Materials and Its Application in Solar Saline‐Alkali Water Desalination

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Water bridge solar evaporator with salt-resistance and heat localization for efficient desalination

Abstract: Inadequate freshwater supply in remote and developing areas motivate the growing demand for cost-effective and efficient desalination technologies. Solar-driven interfacial evaporation has emerged as an environmentally method for water desalination....

Cited by 25 publications

References 63 publications

Dual‐Plasmonic Ti3C2Tx/CuSe 2D/2D Solar Absorber and a Hydrophilic Device for Efficient Solar‐Driven Water Collection

Dual‐Plasmonic Ti3C2Tx/CuSe 2D/2D Solar Absorber and a Hydrophilic Device for Efficient Solar‐Driven Water Collection

Rational Design of a Hydrophilic Core–Hydrophobic Shell Yarn-Based Solar Evaporator with an Underwater Aerophilic Surface for Self-Floating and High-Performance Dynamic Water Purification

Preparation of Phase‐Change Composite Aerogel Materials and Its Application in Solar Saline‐Alkali Water Desalination

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Dual‐Plasmonic Ti₃C₂T_x/CuSe 2D/2D Solar Absorber and a Hydrophilic Device for Efficient Solar‐Driven Water Collection

Dual‐Plasmonic Ti₃C₂T_x/CuSe 2D/2D Solar Absorber and a Hydrophilic Device for Efficient Solar‐Driven Water Collection