Carbon-supported nano tungsten bronze aerogels with synergistically enhanced photothermal conversion performance: Fabrication and application in solar evaporation

Li, Guiqin; Wang, Qing; Wang, Jia; Ye, Jianyong; Zhou, Wenwu; Xu, Jie; Zhuo, Sheng; Chen, Weifan; Liu, Yue

doi:10.1016/j.carbon.2022.04.023

Cited by 35 publications

(11 citation statements)

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“…Xu et al [ 53 ] prepared a modified shape, referred to as organohydrgel, doped with CNTs to purify oil-contaminated water under low sunlight illumination conditions. Li et al [ 54 ] reported on the use of carbon-based hydrogels, rGC-constituted rGOs (reduced graphene oxides), and CNTs. They were synthesized using the hydrothermal technique, and cesium tungsten bronze nanoparticles were deposited on the surface of rGCs using an impregnation procedure.…”

Section: Cnt-based Solar Heat Conversion Devicesmentioning

confidence: 99%

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Recent Development of Carbon-Nanotube-Based Solar Heat Absorption Devices and Their Application

Islam

Furuta

2022

Nanomaterials

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Population growth and the current global weather patterns have heightened the need to optimize solar energy harvesting. Solar-powered water filtration, electricity generation, and water heating have gradually multiplied as viable sources of fresh water and power generation, especially for isolated places without access to water and energy. The unique thermal and optical characteristics of carbon nanotubes (CNTs) enable their use as efficient solar absorbers with enhanced overall photothermal conversion efficiency under varying solar light intensities. Due to their exceptional optical absorption efficiency, low cost, environmental friendliness, and natural carbon availability, CNTs have attracted intense scientific interest in the production of solar thermal systems. In this review study, we evaluated CNT-based water purification, thermoelectric generation, and water heating systems under varying solar levels of illumination, ranging from domestic applications to industrial usage. The use of CNT composites or multilayered structures is also reviewed in relation to solar heat absorber applications. An aerogel containing CNTs was able to ameliorate water filtering performance at low solar intensities. CNTs with a Fresnel lens improved thermoelectric output power at high solar intensity. Solar water heating devices utilizing a nanofluid composed of CNTs proved to be the most effective. In this review, we also aimed to identify the most relevant challenges and promising opportunities in relation to CNT-based solar thermal devices.

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Section: Cnt-based Solar Heat Conversion Devicesmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Recent Development of Carbon-Nanotube-Based Solar Heat Absorption Devices and Their Application

Islam

Furuta

2022

Nanomaterials

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“…Due to population growth and industrial pollution, freshwater scarcity has been regarded as a global issue of human development. − Local interfacial heating technology in solar desalination has gradually attracted more and more attention in recent years owing to its high efficiency and energy saving in comparison to traditional distillation technologies. − Until now, photothermal absorbing materials for photothermal desalination are mainly plasmonic metal nanostructures, − carbonaceous materials, − metal oxides, − and heterogeneous composites. − Plasmonic absorbers such as Au, Ag, Al, and Au–Ag have been used for water evaporation due to their strong light absorption and light-to-heat conversion capabilities. These properties are due to the match between the photon frequency and the natural frequency of the metal’s surface electrons.…”

Section: Introductionmentioning

confidence: 99%

Rapid Synthesis of Oxygen-Deficient MoO_3–x-rGO Composites for Synergistic Photothermal Seawater Desalination and Photocatalytic Sterilization

Sun

Qiu

Fang

et al. 2023

ACS Sustainable Chem. Eng.

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The development of efficient photothermal desalination devices is of great significance in solving the problem of freshwater shortage. The design and preparation of efficient photothermal materials with a broad light absorption range have been extensively studied. However, the performance of photothermal catalysts for synergistic purification of complex seawater is still facing significant challenges. Therefore, we report the rapid preparation of MoO 3−x -rGO composites with synergistic photothermal and photocatalytic performance by the solid-phase microwave thermal shock method. The superhot spots created on the surface of microwave-reduced rGO induce the formation of MoO 3−x with oxygen vacancies. Due to the localized surface plasmon resonance (LSPR) effect, the near-infrared photothermal and photocatalytic properties of MoO 3−x -rGO catalysts are greatly improved. When the optimal composite catalyst (GMW-3) is illuminated by one sunlight, the seawater evaporation rate and photothermal conversion efficiency can reach 1.58 kg m −2 h −1 and 87.2%, respectively. Meanwhile, the GMW-3 composite evaporator shows excellent antibacterial performance under the synergistic effect of photothermal and photocatalysis during the evaporation process. These findings expand a new insight and platform to design efficient catalysts for large-scale seawater desalination and purification.

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“…It can be seen that the evaporation rate of CoCr 2 O 4 nanoparticles in a natural seawater system is still as high as 2.21 kg m –2 h –1 , demonstrating great potential for practical application. Additionally, the water evaporation efficiency (η) of the CoCr 2 O 4 sample is calculated using the following equation: , η = ṁ E q normali C opt × 100 % where ṁ is the rate of water vapor production at steady state (2.26 kg m –2 h –1 ), q i denotes the standard solar intensity (1 kW m –2 ), C opt represents the optical concentration ( C opt = 1 for 1 sun illumination), and E is the water evaporation energy consumption of CoCr 2 O 4 sample calculated based on dark evaporation experimental data, which can be determined by the equation below: E = r normalw E normalw r normalc where r w and E w are the evaporation rate and standard evaporation enthalpy of pure water under dark conditions and r c is the evaporation rate of CoCr 2 O 4 nanoparticles in the dark reaction. The results of the dark evaporation experiments are plotted in Figure S11.…”

mentioning

confidence: 99%

“…It can be seen that the evaporation rate of CoCr 2 O 4 nanoparticles in a natural seawater system is still as high as 2.21 kg m −2 h −1 , demonstrating great potential for practical application. Additionally, the water evaporation efficiency (η) of the CoCr 2 O 4 sample is calculated using the following equation:61,62…”

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confidence: 99%

CoCr₂O₄ Nanoparticles with Abundant Oxygen Vacancies: A New Photothermal Platform for Efficient Solar Evaporation

Xiong

Zhong

Song

et al. 2023

ACS Materials Lett.

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Solar-driven interfacial photothermal evaporation has been recognized as a green, economical, and efficient water purification technique in recent years, and it is one of the most promising methods to realize the supply of high-quality freshwater resources. The key and challenge to achieving a superior water evaporation rate is to explore novel stable materials with high light absorption and photothermal conversion efficiency. In the present work, CoCr2O4 nanocrystals containing a large number of oxygen vacancies have been successfully prepared. Due to their substantial localized surface plasmon resonance effect and excellent photothermal performance, they are applied in the field of solar photothermal water evaporation for the first time. Thanks to their extremely high photothermal effect and excellent hydrophilicity, the outstanding water evaporation rate and efficiency of the obtained CoCr2O4 nanoparticles under standard sun irradiation are as high as 2.26 kg m–2 h–1 and 93.2%, respectively. This work provides an effective strategy for the development of new solar-driven interfacial evaporation materials.

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Carbon-supported nano tungsten bronze aerogels with synergistically enhanced photothermal conversion performance: Fabrication and application in solar evaporation

Cited by 35 publications

References 58 publications

Recent Development of Carbon-Nanotube-Based Solar Heat Absorption Devices and Their Application

Recent Development of Carbon-Nanotube-Based Solar Heat Absorption Devices and Their Application

Rapid Synthesis of Oxygen-Deficient MoO_3–x-rGO Composites for Synergistic Photothermal Seawater Desalination and Photocatalytic Sterilization

CoCr₂O₄ Nanoparticles with Abundant Oxygen Vacancies: A New Photothermal Platform for Efficient Solar Evaporation

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Carbon-supported nano tungsten bronze aerogels with synergistically enhanced photothermal conversion performance: Fabrication and application in solar evaporation

Cited by 35 publications

References 58 publications

Recent Development of Carbon-Nanotube-Based Solar Heat Absorption Devices and Their Application

Recent Development of Carbon-Nanotube-Based Solar Heat Absorption Devices and Their Application

Rapid Synthesis of Oxygen-Deficient MoO3–x-rGO Composites for Synergistic Photothermal Seawater Desalination and Photocatalytic Sterilization

CoCr2O4 Nanoparticles with Abundant Oxygen Vacancies: A New Photothermal Platform for Efficient Solar Evaporation

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Product

Resources

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Rapid Synthesis of Oxygen-Deficient MoO_3–x-rGO Composites for Synergistic Photothermal Seawater Desalination and Photocatalytic Sterilization

CoCr₂O₄ Nanoparticles with Abundant Oxygen Vacancies: A New Photothermal Platform for Efficient Solar Evaporation