Rattan-based solar evaporator with natural hierarchical and gradient pore structure for synergetic salt resistance and stable freshwater generation

Yang, Ri‐Long; Liu, Fangqingxin; Xia, Linmin; Wu, Xiaomei; Zhang, Xuexia; Guo, Fei; Yu, Yan

doi:10.1016/j.seppur.2021.120412

Cited by 17 publications

(7 citation statements)

References 39 publications

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“…The decrease in the evaporation rate for high-salinity solution may be due to the fact that the brine is more difficult to be evaporated than pure water. 38 Some salt crystals could be observed on the cross section of the C-Js after it was used for the desalination of high-salinity brine (≥5 wt %) for 1 h (Figure 7d). Interestingly, these deposited salt crystals could be dissolved spontaneously under dark condition.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Nevertheless, the evaporation rate of C-Js20 for NaCl solution with the concentration of 15 wt % still could reach 1.94 kg m –2 h –1 . The decrease in the evaporation rate for high-salinity solution may be due to the fact that the brine is more difficult to be evaporated than pure water . Some salt crystals could be observed on the cross section of the C-Js after it was used for the desalination of high-salinity brine (≥5 wt %) for 1 h (Figure d).…”

Section: Resultsmentioning

confidence: 99%

“…Over hundreds of millions of years, lots of organisms have evolved amazing hierarchical structures and diverse functions to adapt to the various ecological environments, which makes them ideal resources for ISE devices. − Recently, a variety of biomass materials have been utilized to prepare functional ISE devices, such as wood, , bamboo, , sunflower, , rattan, mushroom, coconut, carrot, etc. Though these ISE devices based on biomass materials exhibit natural hydrophilicity, sufficient water supply ability, and satisfactory thermal management properties, only a few of them have the capability to effectively reduce water vaporization enthalpy.…”

Section: Introductionmentioning

confidence: 99%

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JUJUNCAO-Stem-Based Interfacial Solar-Driven Evaporator with Natural Two-Phase Composite Structures of Functional Partition and Inherent Ultralow Vaporization Enthalpy of Water for Stable and Efficient Steam Production

Tan,

Wu,

Xia

et al. 2024

ACS Appl. Mater. Interfaces

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The interfacial solar-driven evaporation has been deemed as an environmentally friendly approach for freshwater generation. Nevertheless, there is still a challenge to obtain solar evaporators with efficient vapor production from low-cost and renewable biomass through a simple preparation process. Herein, the JUJUNCAO stem was selected as the substrate material, and a kind of interfacial solar-driven evaporator with natural two-phase composite structures and inherent ultralow water vaporization enthalpy was constructed by a dip-coating process. The natural two-phase composite structures were utilized as independent functional partition: the low-tortuosity and hydrophilic vascular bundles served as hierarchical channels for rapid water transportation and continuous steam escape, and the honeycomb-like parenchyma cells were considered natural heat insulators for effective thermal management. Furthermore, the JUJUNCAO stem exhibited inherent ultralow water vaporization enthalpy which was only 1.15 kJ g–1. Benefiting from the natural two-phase composite structures of functional partition and inherent ultralow water vaporization enthalpy, the C-Js evaporator could achieve an evaporation rate of 2.77 kg m–2 h–1 with an efficiency of 85.6% under 1 sun illumination. Meanwhile, the C-Js exhibited a stable and ideal evaporation performance and metal ion rejection behavior in the actual brine desalination process. Owing to the cost-effective and simple pretreatment process, the C-Js evaporator has the potential for freshwater generation in undeveloped areas.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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JUJUNCAO-Stem-Based Interfacial Solar-Driven Evaporator with Natural Two-Phase Composite Structures of Functional Partition and Inherent Ultralow Vaporization Enthalpy of Water for Stable and Efficient Steam Production

Tan,

Wu,

Xia

et al. 2024

ACS Appl. Mater. Interfaces

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“…As discussed above, biomass-based materials have been extensively exploited for SSG, either as photothermal materials or as substrate. 29 Biomass-based materials, e.g., cotton gauze, 175 chitosan, rattan, 176 and dialdehyde starch, 173 are abundant in nature, low-cost, and environmentally friendly, giving them significant advantages for use as substrate. They have many porosities and hydrophilic microchannels that can serve as useful substrates for SSG.…”

Section: Bioderived Porous Materialsmentioning

confidence: 99%

“…Salt accumulation on a solar absorber due to oversaturation of solution may reduce light absorption and block water transport. , Seawater contains 3–3.5% salts, mainly NaCl, which can clog structures after evaporation. To address the issue on salt fouling problems in the water transport path of a solar generation system for desalination, some approaches have been proposed. , Chen et al designed an efficient salt-rejecting Janus evaporator by taking advantage of the self-recovering surface hydrophobicity of poly(dimethylsiloxane) (PDMS) against photochemical damages, which ensures a long-term surface hydrophobicity . Xia et al developed a salt excretion approach to maintaining the evaporation efficiency of interfacial solar steam systems for improved long-term stability in brine desalination .…”

Section: Design Strategies For Solar Steam Generation Systemmentioning

confidence: 99%

Engineering Materials to Enhance Light-to-Heat Conversion for Efficient Solar Water Purification

Setyawan

Juliananda

Widiyastuti

2022

Ind. Eng. Chem. Res.

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Water scarcity has become one of the most prevalent problems afflicting people throughout the world and is expected to grow worse in the future due limited resources and increasing demand. This problem calls out for an urgent need to develop inexpensive, stand-alone desalination and water purification technologies that can adopt water resource distribution, water quality conditions, economic status, and developing levels of communities. Solar energy is abundantly available and has become one of the most promising emerging strategies in sustainable water treatment technologies. In this review paper, we highlight the recent progress of solar-driven desalination and water purification technologies for clean water production. We begin by introducing the fundamental concepts of solar radiation, solar thermal conversion, and heat localization. Then, we review the key components of solar steam generation including solar-thermal conversion materials, water pathways, and heat insulators and the strategies to promote efficient solar-to-vapor conversion in terms of chemical regulation, structural engineering, and heat management to maximize solar absorption and to minimize heat loss. Next, we discuss an efficient design of a solar steam generation device using an integrated approach that accounts for the performance of photothermal materials, heat losses, and water supply with respect to the hot evaporation region. Last, existing challenges and future opportunities in both fundamental studies and practical implementations of solar steam generation for water purification are discussed.

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Laboratory and mathematical investigation of salt deposition in a closed solar desalination pond

Baghizade

Farahbod

Alizadehdakhel

2023

Environ Dev Sustain

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Rattan-based solar evaporator with natural hierarchical and gradient pore structure for synergetic salt resistance and stable freshwater generation

Cited by 17 publications

References 39 publications

JUJUNCAO-Stem-Based Interfacial Solar-Driven Evaporator with Natural Two-Phase Composite Structures of Functional Partition and Inherent Ultralow Vaporization Enthalpy of Water for Stable and Efficient Steam Production

JUJUNCAO-Stem-Based Interfacial Solar-Driven Evaporator with Natural Two-Phase Composite Structures of Functional Partition and Inherent Ultralow Vaporization Enthalpy of Water for Stable and Efficient Steam Production

Engineering Materials to Enhance Light-to-Heat Conversion for Efficient Solar Water Purification

Laboratory and mathematical investigation of salt deposition in a closed solar desalination pond

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