Carbon materials for solar-powered seawater desalination

Wang, Tian-Yi; Huang, Heng-bo; Li, Haoliang; Sun, Youkun; Xue, Yuhua; Xiao, Shuning; Yang, Jing

doi:10.1016/s1872-5805(21)60066-5

Cited by 28 publications

(4 citation statements)

References 103 publications

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“…Under the sun’s irradiation, most of the photons in the light waves are absorbed by the electrons on the surface of the carbon material. The electrons that gain energy undergo energy level jumps, thus converting solar energy into thermal energy, which is released as heat [ 58 , 59 ]. Additionally, carbon materials could be coupled with other photothermal materials to form composite materials with excellent properties.…”

Section: Photothermal Materialsmentioning

confidence: 99%

Overview of Solar Steam Devices from Materials and Structures

et al. 2023

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The global shortage of freshwater supply has become an imminent problem. The high energy consumption of traditional desalination technology cannot meet the demand for sustainable energy development. Therefore, exploring new energy sources to obtain pure water has become one of the effective ways to solve the freshwater resource crisis. In recent years, solar steam technology which utilizes solar energy as the sole input source for photothermal conversion has shown to be sustainable, low-cost, and environmentally friendly, providing a viable low-carbon solution for freshwater supply. This review summarizes the latest developments in solar steam generators. The working principle of steam technology and the types of heating systems are described. The photothermal conversion mechanisms of different materials are illustrated. Emphasis is placed on describing strategies to optimize light absorption and improve steam efficiency from material properties to structural design. Finally, challenges in the development of solar steam devices are pointed out, aiming to provide new ideas for the development of solar steam devices and alleviate the shortage of freshwater resources.

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Section: Photothermal Materialsmentioning

confidence: 99%

Overview of Solar Steam Devices from Materials and Structures

et al. 2023

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“…Carbon materials show excellent promise in the field of harvesting water energy due to their inherent properties of electrical conductivity and surface tunability. 7,8 Among them, low-dimensional carbon materials (e.g., carbon nanoparticles, carbon nanotubes, graphene, etc.) have been widely investigated.…”

Section: Introductionmentioning

confidence: 99%

“…Carbon materials show excellent promise in the field of harvesting water energy due to their inherent properties of electrical conductivity and surface tunability. , Among them, low-dimensional carbon materials (e.g., carbon nanoparticles, carbon nanotubes, graphene, etc.) have been widely investigated. , However, macroscopic devices based on nanomaterials have high cost and are structurally fragile for dynamic fluid flow and volume-changing stresses, which may lead to poor scale-production of carbon nanomaterial-based power generators. , Low-cost and three-dimensional materials with mechanically robust and self-supporting characteristics have been investigated for water-induced electricity. − For example, generators based on natural wood blocks , and biowaste corn stalks can induce open-circuit voltages of several hundred millivolts from water evaporation or ambient humidity.…”

Section: Introductionmentioning

confidence: 99%

Power Generation from the Interaction of a Carbon Foam and Water

Xue,

Zhao,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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Understanding the interaction mechanisms between the surface of carbon-based materials and water is of great significance for the development of water-based energy storage and energy conversion devices. Herein, a self-supporting electric generator is demonstrated based on water adsorption on the surface of the carbon foam (CF) that works with various water resources, including deionized (DI) water, tap water, wastewater, and seawater. It is revealed that the dissociation of oxygencontaining groups on the surface of CF after water molecule adsorption leads to a reduction of the surface potential of the CF. Through surface modulation techniques such as reduction and oxidation, a balance has been uncovered between the oxygen content and conductivity for the high-performance CFs. The generator can generate an open-circuit voltage of approximately 0.6 V in natural seawater with a power density of up to 0.77 mW g −1 . A high voltage of more than 2 V can be achieved easily by assembling components connected in series to drive electronic devices, such as a light-emitting diode (LED). This work demonstrates a simple and low-cost method for electricity harvesting, offering an additional option for self-powered devices.

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“…[11][12][13] Therefore, LHEST can improve the effective utilization efficiency of solar energy. [14][15][16] However, faced with the inherent problems of poor light absorption, slow leakage, and heat transfer rate of PCM, researchers have prepared shapestable composite PCM with high photothermal conversion performance and high thermal conductivity, and achieved good results. [17][18][19] Sun et al [20] prepared phase change microcapsules using silica as shell, effectively solving the problem of n-docosane leakage, and conversion efficiency of the prepared microcapsules was up to 90.1%, and the thermal conductivity was up to 0.982-1.131 W m À1 K. Liu et al [21] doped black phosphorus nanosheets in the phase change microcapsule material, and compared with pure PCM, the thermal conductivity increased by 400%, and the photothermal conversion storage efficiency was as high as 95.08%.…”

Section: Introductionmentioning

confidence: 99%

Copolymerization of Phase Change Materials with Water Resistance Poly(Acrylamide‐Co‐Polyacrylic Acid) Copolymer Encapsulation: Photothermal Conversion and Storage Performance Under Solar Conditions

Huí

Chu

et al. 2023

Adv Eng Mater

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Currently, the majority of composite phase change materials (PCM) are only available in solid‐phase environments. Therefore, it is important to prepare composite PCM with photothermal conversion capacity, high thermal conductivity, and stability in both solid and aqueous phase conditions. In this work, a composite PCM with high photothermal conversion storage efficiency (92.6%), high energy storage density (147.6 J/g), and high thermal conductivity (1.19 W/m·K) was prepared using Poly (acrylamide co polyacrylic acid) copolymer (PAAAM) as the supporting material, boron nitride (BN) as the high thermal conductivity filler, and carboxyl‐rich carbon (RHTC) as the photothermal conversion agent and key bridge. With the help of the characteristics of PAAAM, although the PAAAM chain is swollen not broken, it still maintains cross interconnection with PCM in the water‐phase environment, which has excellent encapsulation performance in both the water/solid phase environment. This provides another option for broadening the application of PCM in aqueous solvent conditions.This article is protected by copyright. All rights reserved.

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Carbon materials for solar-powered seawater desalination

Cited by 28 publications

References 103 publications

Overview of Solar Steam Devices from Materials and Structures

Overview of Solar Steam Devices from Materials and Structures

Power Generation from the Interaction of a Carbon Foam and Water

Copolymerization of Phase Change Materials with Water Resistance Poly(Acrylamide‐Co‐Polyacrylic Acid) Copolymer Encapsulation: Photothermal Conversion and Storage Performance Under Solar Conditions

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