Electrospinning Technique Meets Solar Energy: Electrospun Nanofiber-Based Evaporation Systems for Solar Steam Generation

Zhao, Jiachang; Li, Zhi; Low, Siew Chun; Xu, Zhenzhen; Tan, Soon Huat

doi:10.1007/s42765-023-00286-4

Cited by 42 publications

(14 citation statements)

References 143 publications

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“…7−9 The research on wastewater treatment and desalination of seawater to obtain freshwater supply has expanded in recent years. 10 Various methods have been developed, including electrodialysis, 11,12 reverse osmosis, 13,14 forward osmosis, 5 and pressure steam-distillation. 15 While these methods can produce freshwater, their cost and energy consumption are significant concerns.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Additionally, it results in the overexploitation of groundwater, which in turn triggers ecological and environmental problems such as ground subsidence, collapse, cracks, and sanding. − The research on wastewater treatment and desalination of seawater to obtain freshwater supply has expanded in recent years . Various methods have been developed, including electrodialysis, , reverse osmosis, , forward osmosis, and pressure steam-distillation . While these methods can produce freshwater, their cost and energy consumption are significant concerns.…”

Section: Introductionmentioning

confidence: 99%

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Construction of Hydrogels with Highly Salt-Resistant Honeycomb Porous Structures for Solar Desalination and Steam Generation

Yang,

Wang,

Zhu

et al. 2024

Langmuir

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Interfacial solar desalination is a method for desalinating seawater using solar energy, and the long-term use of this technology requires a stable evaporation rate and some ability to prevent salt crystallization. To address these issues, carbonized polydopamine-coated bentonite (C@PBT), poly(vinyl alcohol), and cellulose nanofibers were used to construct a three-dimensional oriented hydrogel evaporator with a multilayered honeycomb porous structure for long-term desalination. Carbon nanoparticles transferred between the layers of the bentonite, which increases the spacing of the layers and confers a more effective solar light trapping ability. The evaporation rate was 2.26 kg m −2 h −1 in 20 wt % NaCl solution, and no salt crystals were precipitated from the surface of the evaporator in 12 h of continuous operation. This phenomenon occurs due to the wide distribution of pore sizes and the large size of the pores within the evaporator, which create ample space for salt ions to move freely. Furthermore, after undergoing 300 cycles of compression, its internal pore structure remains intact, and the rate of evaporation remains stable. It ensures the evaporator stability during outdoor cycles. The research work provides an effective method to solve the salt accumulation problem and shows its great potential for application.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Construction of Hydrogels with Highly Salt-Resistant Honeycomb Porous Structures for Solar Desalination and Steam Generation

Yang,

Wang,

Zhu

et al. 2024

Langmuir

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“…Covalent organic frameworks (COFs) are crystalline polymers with highly ordered structures that can be designed with precise control over the placement of atoms and functional groups, making them an ideal choice for armoring these biomimetic catalysts . We envisaged that the successful immobilization of short peptide-based catalysts within a robust COF matrix would retain their enzyme-like activity in various operational media . COFs with high stability and ordered pore channels should act as membrane-like functional materials to confine these short peptide assemblies.…”

Section: Introductionmentioning

confidence: 99%

Covalent Organic Framework Cladding on Peptide-Amphiphile-Based Biomimetic Catalysts

et al. 2023

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Peptide-based biomimetic catalysts are promising materials for efficient catalytic activity in various biochemical transformations. However, their lack of operational stability and fragile nature in non-aqueous media limit their practical applications. In this study, we have developed a cladding technique to stabilize biomimetic catalysts within porous covalent organic framework (COF) scaffolds. This methodology allows for the homogeneous distribution of peptide nanotubes inside the COF (TpAzo and TpDPP) backbone, creating strong noncovalent interactions that prevent leaching. We synthesized two different peptide-amphiphiles, C10FFVK and C10FFVR, with lysine (K) and arginine (R) at the C-termini, respectively, which formed nanotubular morphologies. The C10FFVK peptide-amphiphile nanotubes exhibit enzyme-like behavior and efficiently catalyze C–C bond cleavage in a buffer medium (pH 7.5). We produced nanotubular structures of TpAzo–C10FFVK and TpDPP–C10FFVK through COF cladding by using interfacial crystallization (IC). The peptide nanotubes encased in the COF catalyze C–C bond cleavage in a buffer medium as well as in different organic solvents (such as acetonitrile, acetone, and dichloromethane). The TpAzo–C10FFVK catalyst, being heterogeneous, is easily recoverable, enabling the reaction to be performed for multiple cycles. Additionally, the synthesis of TpAzo–C10FFVK thin films facilitates catalysis in flow. As control, we synthesized another peptide-amphiphile, C10FFVR, which also forms tubular assemblies. By depositing TpAzo COF crystallites on C10FFVR nanotubes through IC, we produced TpAzo–C10FFVR nanotubular structures that expectedly did not show catalysis, suggesting the critical role of the lysines in the TpAzo–C10FFVK.

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“…Currently, the well-established technologies in seawater desalination include reverse osmosis, 1 electrodialysis, 2 and evaporation. 3 However, these methods have noticeable drawbacks, such as high energy consumption and the generation of secondary pollution. 4 Therefore, there is an urgent need to develop environmentally friendly and energyefficient desalination technologies.…”

Section: Introductionmentioning

confidence: 99%

“…Desalination has emerged as a prominent solution to address freshwater scarcity, drawing attention from both academia and industry. Currently, the well-established technologies in seawater desalination include reverse osmosis, electrodialysis, and evaporation . However, these methods have noticeable drawbacks, such as high energy consumption and the generation of secondary pollution .…”

Section: Introductionmentioning

confidence: 99%

Efficient Hybrid Capacitive Deionization Device with High Operating Voltage Based on Layered Sodium Manganese Oxide

Liu,

Xie,

Liu

et al. 2023

ACS EST Water

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This study aims to synthesize sodium manganese oxide through a single-step hydrothermal method, enabling precise temperature control for manipulating the structure, composition, morphology, and sodium storage performance of the products. The synthesized Na 0.55 Mn 2 O 4 •1.5H 2 O demonstrated a stable two-dimensional nanosheet structure and a significantly large specific surface area when prepared at a temperature of 180 °C. Under constant current charge−discharge conditions in a neutral solution, the material exhibited a specific capacitance of 184.3 F/g. By utilizing Na 0.55 Mn 2 O 4 •1.5H 2 O as the positive electrode and self-made pine bark biomass-activated carbon as the negative electrode in a Na 0.55 Mn 2 O 4 •1.5H 2 O|PBC-3 hybrid capacitor (HC), an optimized positive-to-negative electrode mass ratio of 1:3 resulted in the best overall performance. Notably, the system operated at a high voltage (1.5 V) without the requirement for ion-selective membranes. In a 1000 ppm NaCl solution, the system displayed an impressive desalination capacity of 44.8 mg/g and a desalination rate of 0.064 mg/g/s. At a higher removal rate of 0.095 mg/g/s, the system achieved a desalination capacity of 32.53 mg/g. Comparative analysis of comparable hybrid capacitive deionization devices revealed that the Na 0.55 Mn 2 O 4 •1.5H 2 O|PBC-3 HC displayed a high operating voltage and superior desalination performance. Moreover, these findings enhance the feasibility of using HCDI technology in large-scale water treatment systems.

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Electrospinning Technique Meets Solar Energy: Electrospun Nanofiber-Based Evaporation Systems for Solar Steam Generation

Cited by 42 publications

References 143 publications

Construction of Hydrogels with Highly Salt-Resistant Honeycomb Porous Structures for Solar Desalination and Steam Generation

Construction of Hydrogels with Highly Salt-Resistant Honeycomb Porous Structures for Solar Desalination and Steam Generation

Covalent Organic Framework Cladding on Peptide-Amphiphile-Based Biomimetic Catalysts

Efficient Hybrid Capacitive Deionization Device with High Operating Voltage Based on Layered Sodium Manganese Oxide

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