Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 106, P. 114745 - 114745
Published: Nov. 29, 2024
Language: Английский
Nano Letters, Journal Year: 2024, Volume and Issue: 24(34), P. 10583 - 10591
Published: Aug. 13, 2024
As global freshwater shortages worsen, solar steam generation (SSG) emerges as a promising, eco-friendly, and cost-effective solution for water purification. However, widespread SSG implementation requires efficient photothermal materials evaporators that integrate enhanced light-to-heat conversion, rapid transportation, optimal thermal management. This study investigates using nonoxidized graphene flakes (NOGF) with negligible defects capable of absorbing over 98% sunlight. By combining NOGF cellulose nanofibers (CNF) through bidirectional freeze casting, we created vertically radially aligned evaporator. The hybrid aerogel exhibited exceptional absorption, solar-to-thermal improved surface wettability. Inspired by tree structures, our design ensures supply while minimizing heat loss. With low content (∼10.0%), the NOGF/CNF achieves rate 2.39 kg m
Language: Английский
Citations
12
International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 275, P. 133340 - 133340
Published: June 24, 2024
Language: Английский
Citations
10
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 16, 2025
Abstract Solar vapor generation (SVG) garners significant attention as a technology for producing clean water owing to its high efficiency and zero carbon emissions. However, the widespread adoption of SVG is constrained by cost, low mechanical strength, complex fabrication processes current photothermal materials. Lignin coal, abundant in aromatic rings, C═O bonds, quinone structures, present natural advantages enhancing light absorption improving properties This review begins with an overview fundamentals strategies aimed at promoting efficiency. It then delves into structural characteristics conversion mechanisms lignin highlighting their unique contributions field. Further, latest advancements application lignin/coal‐based materials are comprehensively summarized. work not only lays systematic scientific foundation development next‐generation but also underscores potential value‐added utilization thereby contributing sustainable resource management.
Language: Английский
Citations
1
Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 129573 - 129573
Published: Sept. 1, 2024
Language: Английский
Citations
7
Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 116162 - 116162
Published: Nov. 1, 2024
Language: Английский
Citations
5
Small, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 30, 2024
Abstract Solar‐powered interfacial water evaporation is a promising technique for alleviating freshwater stress. However, the performance of solar evaporators still constrained by low photothermal conversion efficiency and high enthalpy. Herein, 0D carbon quantum dots (CQDs) are combined with 2D MXene to serve as hybrid material enhance light absorption ability, meanwhile sodium carboxymethyl cellulose (CMC)/polyacrylamide (PAM) hydrogels used substrate transport reduce enthalpy evaporation. The synergistic effect in CQDs/2D materials accelerate carrier transfer, inducing efficient localized surface plasmon resonance (LSPR) effect. This results enhanced efficiency. integrated hydrogel demonstrate rate (1.93 2.86 kg m −2 h −1 under 1 2 sunlights, respectively) (1485 J g ). In addition, applied sensing temperature difference power generation (TEG). TEG device presents an output density (230.7 mW ) sunlight. work provides feasible approach regulating controlling performances evaporators, gives proof‐of‐concept design multipurpose systems.
Language: Английский
Citations
4
Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 118559 - 118559
Published: Jan. 1, 2025
Language: Английский
Citations
0
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 25, 2025
Abstract 2D photothermal membranes have demonstrated numerous advantages in solar desalination due to their flexibility, scalability, and low cost. However, practical applications are limited by the restricted evaporation area obstructed vapor channels. A biomimetic design of breathable fabric is reported, which composed two carbon‐nanotube‐hydrogel‐coated polyester (PET) fabrics separated fiber pillars, with upper layer having a hole array as stomatal This shows high solar‐absorption efficiency (96.1%) decreased water‐evaporation enthalpy (1664.6 kJ kg −1 ). The hanging heliotropic evaporator exhibits four‐plane feature achieves rate 2.6 m −2 h under sunlight (1.0 kW ) illumination, better than traditional floated model (single‐plane, 1.6 can be further enhanced 4.2 upon introducing adscititious airflow (2 s Simultaneously, heliotropic‐hanging allows dropping concentrated brine, avoiding solid‐salt‐crystallization.
Language: Английский
Citations
0
Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)
Published: Feb. 26, 2025
Lignite has emerged as a critical material in contemporary energy portfolios, particularly electricity generation. However, this work explores lignite's potential beyond conventional uses, exploring on its conversion applications. In pioneering move, lignite samples have been directly utilized materials for photothermal applications, along with description of their geochemical features, such sulfur compositions, forms, and microscopic characteristics. Among the twenty that were geologically studied, two sulfur-rich (CS-1 CS-2) chosen to explore performance. The powder-XRD diffraction patterns CS-1 CS-2 reveal presence hexagonal phase carbon C1 kaolinite (Al2Si2O5(OH)4). Their XPS spectra indicate both organic metal-bonded sulfide moieties are present samples. implemented under 1 Sun irradiation, it was found exhibits superior light-absorbing properties, resulting enhanced water evaporation rates. addition, imaging also shows temperature increase 58.2 °C within 10 min lignite-coated membranes, compared 31 blank similar conditions. These findings can be leveraged untapped various technological domains, propelling global transition towards cleaner solutions.
Language: Английский
Citations
0
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 4, 2025
Abstract A solar‐thermal reduced graphene oxide/octadecane (RGO/oct) phase‐change foam is fabricated by the interfacial assembly of an air‐in‐oil‐in‐water three‐phase emulsion and subsequent chemical reduction oxide (GO) for day‐night evaporation desalination. The GO sheets assemble at water‐oct interfaces in presence amphiphilic alkyl glycoside while air pores are generated inside hydrophobic oct component under stirring, leading to GO/oct/air microspheres. During molding, chemically with ascorbic acid, resultant RGO/oct/air microspheres closed constitute RGO/oct foam. suppress heat conduction bulk water, prevents loss environment, hence enhancing localization capability exhibits a high rate 4.29 kg m −2 h −1 1‐sun irradiation. Interestingly, can release latent absence solar light irradiation, enabling water nighttime 2.30 . overlap molding allows rearrangement salt concentration gradients, exhibiting satisfactory resistance during stable brine 25 wt.% NaCl 10 h.
Language: Английский
Citations
0