Vertically symmetrical evaporator based on photothermal fabrics for efficient continuous desalination through inversion strategy

Liu, Zixiao; Zhong, Qiuping; Wu, Naiyan; Zhou, Hanzhang; Wang, Lixin; Zhu, Lu; Jiang, Ning; Zhu, Bo; Chen, Zhigang; Zhu, Meifang

doi:10.1016/j.desal.2021.115072

Cited by 45 publications

(16 citation statements)

References 41 publications

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“…Accordingly, the energy conversion under solar intensity of 1.0-5.0 kW m À2 is 85.1%, 91.4%, 97.5%, 96.6%, and 95.9%, respectively, which is higher or comparable to other related works, such as CuS nanoflowers/semipermeable collodion membrane composite, the evaporation efficiencies under 1,2,4 sun illumination were 68.6%, 75.1%, and 81.2% [20] ; and cotton-Cs x WO 3 fabric, the evaporation efficiencies under 1-3 sun illumination were 86.8%, 84.4%, and 80.5%. [44] In order to verify the structural and performance stability of the evaporator film, the CuS/BC composite film was used for the repeated evaporation tests under the irradiation intensity of 1 sun, with the solar steam generation experiments repeated 10 times under the same conditions. As shown in Figure 6c, the evaporation performance of CuS/BC composite film was relatively stable, and the evaporation rate remained at about 1.283-1.355 kg m À2 h À1 under 1 sun irradiation, which indicates that the CuS/BC composite film can ensure long-term stable solar steam generation.…”

Section: Resultsmentioning

confidence: 99%

CuS Hollow Nanospheres/Cellulose Composite Film as a Recyclable Interfacial Photothermal Evaporator for Solar Steam Generation

Shang

et al. 2021

Energy Tech

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Effective utilization of solar energy for the production of thermal energy is regarded as one of the most sustainable ways to conquer the growing global energy crisis. Photothermal conversion at the water–air interface is considered to be a promising route for steam generation, distillation, and desalination. However, most of the interfacial photothermal evaporators often require optical concentrators and complicated systems with multiple components, leading to poor efficiency and high cost. Herein, an extremely simple and low‐cost interfacial heating film for highly efficient solar steam generation is introduced. The composite film is composed of a viscose cellulose film loaded with CuS hollow nanospheres. The CuS/cellulose composite film, fabricated by a solvothermal method process, serves as an efficient solar absorber (>94%), vapor channel, and thermal insulator (the thermal conductivity is 0.06 W m−1 K−1), leading to an efficiency of 85% under solar irradiation (1.0 kW m−2), which represents a concrete step for solar steam generation to alleviate the global water scarcity.

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Section: Resultsmentioning

confidence: 99%

CuS Hollow Nanospheres/Cellulose Composite Film as a Recyclable Interfacial Photothermal Evaporator for Solar Steam Generation

Shang

et al. 2021

Energy Tech

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“…The evaporation rate of PDA-CF and CuS-PDA-CF are compared with previously reported CF-based solar steam generators as shown in Figure 6A. Such as MWCNTs-COOH/CF, 31 PPy/CF, 32 Mxene/CNT/CF, 33 TBFF-PDA-PPy/CF, 34 Soot/CF, 35 Mn-CF, 36 RGO/CF, 37 MWCNTs-COON/BN-PDA/CF, 18 CsxWO 3 /CF 38 and CNT/CF. 19 Despite CuS-PDA-CF acquiring a 1.50 kg m À2 h À1 evaporation rate, it is still in the middle to upper range, and it has a very simple manufacturing procedure with a low cost.…”

Section: Solar Vapor Production Experimentsmentioning

confidence: 82%

CuS ‐enhanced light‐absorbing washable solar evaporator based on polydopamine‐cotton fabric for efficient water purification

Xiong

Yang

et al. 2022

Intl J of Energy Research

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Interface solar steam generation (ISSG) is a prospective and reliable option for producing freshwater from seawater and industrial wastewater. However, salts and heavy metal ions deposited on photothermal materials (PTMs) will diminish the evaporation rate. Besides, the low evaporation rate will limit the widespread application of ISSG devices. In this work, we exploited a washable CuSenhanced light absorption PTM based on polydopamine-cotton fabric (PDA-CF), which is abbreviated as CuS-PDA-CF. On one hand, CuS-PDA-CF is washable and can be cleaned by hand or ultrasonic to remove the deposited salts and renew the photothermal performance. On the other hand, Due to the cooperative contribution of CuS and PDA, the light absorption capacity of CuS-PDA-CF is improved to 98.13%, acquiring a 1.50 kg m À2 h À1 water evaporation rate with a 94.49% photothermal efficiency at 1-solar (1 kW m À2 ) illumination. Outdoor experiments demonstrate that the solar vapor generator based on CuS-PDA-CF can extract freshwater from seawater and industrial wastewater. The cations elimination rate in seawater and industrial wastewater is higher than 99.9%. This work provides an achievable method to fabricate efficiency-enhanced and washable CF-based solar evaporators to relieve freshwater scarcity.

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“…94 Considering the great potential of fabrics in the real application of ISVG systems, weaving technology can be a universal tool to make high-performance fabricbased solar evaporators. [90][91][92][93]95,96 2.3.4 Freeze casting and gas foaming. Freeze casting, known as ice templating, is a versatile technology used for preparing porous structures, especially those with vertically aligned channels that are quite suitable for ISVG systems.…”

Section: Fabrication Techniques For Isvg Systemsmentioning

confidence: 99%

“…Other reported substrates include sponges (polyurethane (PU), melamine sponges, e.g. ), 38,54,78–82 paper substrates, 83,84 metal foams (porous anode aluminum oxide, copper foam, Ni foam, and Ti foam), 85–88 fabrics, 89–96 etc.…”

Section: Isvg Systems: Materials and Fabrication Techniquesmentioning

confidence: 99%

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Recent advances in interfacial solar vapor generation: clean water production and beyond

Chao

et al. 2023

J. Mater. Chem. A

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Vertically symmetrical evaporator based on photothermal fabrics for efficient continuous desalination through inversion strategy

Cited by 45 publications

References 41 publications

CuS Hollow Nanospheres/Cellulose Composite Film as a Recyclable Interfacial Photothermal Evaporator for Solar Steam Generation

CuS Hollow Nanospheres/Cellulose Composite Film as a Recyclable Interfacial Photothermal Evaporator for Solar Steam Generation

CuS ‐enhanced light‐absorbing washable solar evaporator based on polydopamine‐cotton fabric for efficient water purification

Recent advances in interfacial solar vapor generation: clean water production and beyond

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