Solar-Powered Sustainable Water Production: State-of-the-Art Technologies for Sunlight–Energy–Water Nexus

ACS Nano, Journal Year: 2021, Volume and Issue: 15(8), P. 12535 - 12566

Published: July 19, 2021

Alternative water resources (seawater, brackish water, atmospheric sewage, etc.) can be converted into clean freshwater via high-efficiency, energy-saving, and cost-effective methods to cope with the global crisis. Herein, we provide a comprehensive systematic overview of various solar-powered technologies for alternative utilization (i.e., "sunlight-energy-water nexus"), including solar-thermal interface desalination (STID), membrane (STMD), solar-driven electrochemical (SED), harvesting (ST-AWH). Three strategies have been proposed improving evaporation rate STID systems above theoretical limit designing all-weather or all-day operating by analyzing energy transfer condensation processes caused conversion. This review also introduces fundamental principles current research hotspots two other seawater (STMD SED) in detail. In addition, cover ST-AWH terms technology design, materials evolution, device assembly, etc. Finally, summarize content this discuss challenges future outlook different types technologies.

Language: Английский

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Surface Patterning of Two-Dimensional Nanostructure-Embedded Photothermal Hydrogels for High-Yield Solar Steam Generation

ACS Nano, Journal Year: 2021, Volume and Issue: 15(6), P. 10366 - 10376

Published: June 10, 2021

Improving evaporation rate is extremely important to promote the application of solar steam generation in clean water production through seawater desalination. However, theoretical limit a normal two-dimensional (2D) photothermal evaporator only about 1.46 kg m–2 h–1. While 3D evaporators can break limit, they require much more raw materials. In this work, an effective approach for achieving high-yield via synergy 2D nanostructure-embedded all-in-one hybrid hydrogel and surface patterning reported. This improved surface-patterned able simultaneously lower enthalpy vaporization induce Marangoni effect near surface, thus delivering high 3.62 h–1, which than twice evaporator. offers cost-effective energy-efficient pathway mitigate shortages.

Language: Английский

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Flatband λ-Ti3O5 towards extraordinary solar steam generation

Nature, Journal Year: 2023, Volume and Issue: 622(7983), P. 499 - 506

Published: Sept. 13, 2023

Language: Английский

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Enhanced Interfacial Solar Evaporation through Formation of Micro‐Meniscuses and Microdroplets to Reduce Evaporation Enthalpy

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(17)

Published: Jan. 12, 2022

Abstract Interfacial solar water evaporation, a promising way to address shortages and pollution, has attracted increasing attention. However, low evaporation rates limit its practical applications. Reducing enthalpy is one of the most efficient ways improve rate. In this study, micro‐meniscuses microdroplets (MMDs) are found observed on surface polypyrrole nanoarrays hydrophilic carbon cloth. The MMDs can reduce system, thus resulting in high rate 2.16 kg m −2 h −1 pure under 1 sun. Dynamic calculations imply that approximately at least 1.7 times 1.8 flat liquid film, respectively. Under sun, evaporators with enable stable continuous 72 10.0 wt% NaCl solution, simulated seawater, actual wastewater, an 1.86, 1.99, 1.82 , As far as it known, these highest reported values for 2D interfacial evaporator high‐salinity brine or wastewater. It believed work provided novel pathway designing performance.

Language: Английский

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Interfacial Solar Evaporation: From Fundamental Research to Applications

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(23)

Published: Feb. 22, 2024

Abstract In the last decade, interfacial solar steam generation (ISSG), powered by natural sunlight garnered significant attention due to its great potential for low‐cost and environmentally friendly clean water production in alignment with global decarbonization efforts. This review aims share knowledge engage a broader readership about current progress of ISSG technology facing challenges promote further advancements toward practical applications. The first part this assesses strategies enhancing energy efficiency systems, including optimizing light absorption, reducing losses, harvesting additional energy, lowering evaporation enthalpy. Subsequently, faced technologies, notably salt accumulation bio‐fouling issues applications, are elucidated contemporary methods discussed overcome these challenges. end, applications ISSG, ranging from initial seawater desalination industrial wastewater purification power generation, sterilization, soil remediation, innovative concept sea farm, introduced, highlighting promising contributing sustainable conscious practices. Based on in‐depth understanding aspects, future research focuses proposed address both fundamental

Language: Английский

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Integrated reduced graphene oxide/polypyrrole hybrid aerogels for simultaneous photocatalytic decontamination and water evaporation

Applied Catalysis B Environment and Energy, Journal Year: 2021, Volume and Issue: 301, P. 120820 - 120820

Published: Oct. 14, 2021

Language: Английский

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Solar Water Evaporation Toward Water Purification and Beyond

ACS Materials Letters, Journal Year: 2021, Volume and Issue: 3(8), P. 1112 - 1129

Published: July 1, 2021

With the pressing global energy and environmental issues, solar water evaporation (SWE), which generates vapor using energy, emerges as a promising sustainable approach, because of its diverse applications. Developing thermal- water-management strategies through material structural designs with novel functionalities has been demonstrated for improved performance SWE-based systems. This Review summarizes recent progress SWE potential applications, ranging from purification, to electricity generation, steam sterilization, evaporative cooling. Specifically, rational design principles evaporators are described aspect management high rates. The system water- energy-related also discussed. Finally, we emphasize key challenges opportunities both in fundamental research practical applications future development this technology.

Language: Английский

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Self‐Repairing and Damage‐Tolerant Hydrogels for Efficient Solar‐Powered Water Purification and Desalination

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(40)

Published: July 10, 2021

Abstract Solar‐driven interfacial evaporation has emerged as an innovative and sustainable technology for efficient, clean water production. Real‐world applications depend on new classes of low‐cost, lightweight, robust materials that can be integrated into one monolithic device, which withstands a variety realistic conditions open water. Self‐repairing building blocks are highly desired to prevent permanent failures, recover original functions maintain the lifetime steam generators, although related studies scarce date. For first time, monolithic, durable, self‐floating generator with well‐defined structures is demonstrated by integrating self‐healing hydrogels through facile processes in surface modulation device fabrication. High stable rates over 2.0 kg m −2 h −1 attained under 1 sun both fresh brine broad range salinity (36–210 g ). The solar desalination performance among best‐performing generators surpass majority devices constructed composite polymers structural components. This study provides perspective highlights future opportunities damage‐tolerant simultaneously improve performance, durability, real‐world applications.

Language: Английский

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Forest-like Laser-Induced Graphene Film with Ultrahigh Solar Energy Utilization Efficiency

ACS Nano, Journal Year: 2021, Volume and Issue: 15(12), P. 19490 - 19502

Published: Nov. 19, 2021

To achieve high solar energy utilization efficiency, photothermal materials with broadband absorption of sunlight and conversion efficiency are becoming a fast-growing research focus. Inspired by the forest structure efficient utilization, we designed fabricated graphene film consisting densely arranged porous though laser scribing on polybenzoxazine resin (poly(Ph-ddm)). This hierarchical significantly reduced light reflection as 2D material. With combination advanced properties graphene, 3D structured film, named forest-like laser-induced (forest-like LIG), was endowed very 99.0% over whole wavelength range well light-to-heat performance (reaching up to 87.7 °C within 30 s under illumination simulated showing an equilibrium temperature 90.7 ± 0.4 °C). As further benefit its superhydrophobicity, actuator quick actuated response motion velocity, solar-driven interfacial desalination membrane durable salt-rejecting evaporation efficiencies, demonstrated.

Language: Английский

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Tailoring the Salt Transport Flux of Solar Evaporators for a Highly Effective Salt-Resistant Desalination with High Productivity

ACS Nano, Journal Year: 2022, Volume and Issue: 16(2), P. 2511 - 2520

Published: Jan. 24, 2022

Developing highly effective salt-resistant solar evaporators for a long-term desalination with high evaporation rate and water production remains great challenge. Herein, we fabricated three-dimensional printed hierarchical porous reduced graphene oxide/carbon black (3DP-HP rGO/CB) evaporator constructed thin layer of photothermal interface grid transport channel possessing large-sized microstructure. The 3DP-HP rGO/CB demonstrates tailored high-salt flux up to 4.3 kg·m-2·h-1, which displays performance at 10.5 kg·m-2·h-1 during 10 wt % NaCl brine under 8 kW·m-2 illumination. Experiments theoretical calculations prove that the large microstructure abundant low-resistance salt ion channels endows flux, therefore boosting resistance compared traditional evaporators. A d experiment shows high-rate stable production. Furthermore, can purify an ultrafast 5.6 L·m-2·h-1 natural sunlight. This work potential practical implementation productivity.

Language: Английский

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