Selective ceramic absorber with vertical pore structure for efficient solar evaporation

Yin, Jialiang; Tang, Linling; Gao, Yalin; Fang, Zhenggang; Lu, Chunhua; Xu, Zhongzi

doi:10.1016/j.seppur.2022.121009

Cited by 14 publications

(2 citation statements)

References 33 publications

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“…The solar energy conversion efficiency (η) is calculated according to the following equation [39,43]:…”

Section: Calculation Of Light Absorption Rate and Photothermal Conver...mentioning

confidence: 99%

(Ca0.25La0.5Dy0.25)CrO3 Ceramic Fiber@Biomass-Derived Carbon Aerogel with Enhanced Solute Transport Channels for Highly Efficient Solar Interface Evaporation

Zhang,

Xue,

Zhang

et al. 2024

Materials

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The use of solar interface evaporation for seawater desalination or sewage treatment is an environmentally friendly and sustainable approach; however, achieving efficient solar energy utilization and ensuring the long-term stability of the evaporation devices are two major challenges for practical application. To address these issues, we developed a novel ceramic fiber@bioderived carbon composite aerogel with a continuous through-hole structure via electrospinning and freeze-casting methods. Specifically, an aerogel was prepared by incorporating perovskite oxide (Ca0.25La0.5Dy0.25)CrO3 ceramic fibers (CCFs) and amylopectin-derived carbon (ADC). The CCFs exhibited remarkable photothermal conversion efficiencies, and the ADC served as a connecting agent and imparted hydrophilicity to the aerogel due to its abundant oxygen-containing functional groups. After optimizing the composition and microstructure, the (Ca0.25La0.5Dy0.25)CrO3 ceramic fiber@biomass-derived carbon aerogel demonstrated remarkable properties, including efficient light absorption and rapid transport of water and solutes. Under 1 kW m−2 light intensity irradiation, this novel material exhibited a high temperature (48.3 °C), high evaporation rate (1.68 kg m−2 h−1), and impressive solar vapor conversion efficiency (91.6%). Moreover, it exhibited long-term stability in water evaporation even with highly concentrated salt solutions (25 wt%). Therefore, the (Ca0.25La0.5Dy0.25)CrO3 ceramic fiber@biomass-derived carbon aerogel holds great promise for various applications of solar interface evaporation.

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“…The solar energy conversion efficiency (η) is calculated according to the following equation [39,43]:…”

Section: Calculation Of Light Absorption Rate and Photothermal Conver...mentioning

confidence: 99%

(Ca0.25La0.5Dy0.25)CrO3 Ceramic Fiber@Biomass-Derived Carbon Aerogel with Enhanced Solute Transport Channels for Highly Efficient Solar Interface Evaporation

Zhang,

Xue,

Zhang

et al. 2024

Materials

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show abstract

“…From the reported work, the photothermal materials are mainly focused on the metal-based nanomaterials, − which utilize surface plasmon resonance (SPR) and localized SPR mechanisms to achieve photothermal conversion; carbon-based materials, ,− using conjugation and hyperconjugation effects to achieve light-converted heat; inorganic semiconductors; − and organic polymers, − using photothermal electronic excitation to achieve light-converted heat. Besides, other materials such as MXenes (M: transition metal, X: C or N), , black phosphorus-based nanospheres, , and perovskite oxide ceramics (Sm 0.5 Sr 0.5 CoO 3−δ and La 0.5 Sr 0.5 Co 0.5 Ni 0.5 O 3−δ ) are also used to serve as photothermal materials which offer an excellent photothermal conversion under sun illumination.…”

Section: Introductionmentioning

confidence: 99%

Nickel Foam@Reduced Graphene Oxide–Carbon Nanotube Composite as an Efficient Solar Evaporator for Water Purification and Electricity Generation

Chen

Liu

et al. 2022

Ind. Eng. Chem. Res.

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Production of clean water from seawater and wastewater is significant through photothermal evaporation using unlimited solar energy. Here, we constructed a double-layer-structure evaporator (DLSE) consisting of nickel foam@reduced graphene oxide–carbon nanotube (NF@RGO–CNT) as a solar absorber and an expanded polyethylene foam (EPE)/thermoelectric (TE) module as a heat insulator, which was used in various water purification processes and simultaneous electricity generation. The reduced graphene oxide covered on the surface of nickel foam increases broad-band absorption of sunlight and weakens the thermal emittance, and its coarse surface decreases the reflectance of light, which ensures the largest photo-to-heat conversion efficiency. Compared with the pristine nickel foam, NF@RGO–CNT has a low thermal conductivity to achieve localized high temperatures, which favors the evaporation of water on the interfacial surface. As such, a high water evaporation rate of 1.37 kg m–2 h–1 together with a photothermal conversion efficiency of 96.4% was achieved over the NF@RGO–CNT under 1 kW/m2. Meanwhile, the thermoelectricity during solar evaporation is generated by utilizing the TE module instead of EPE, in which a maximum output power of 0.251 W m–2 was achieved under 1 kW/m2. In addition, clean water can be produced using DLSE equipment from various water sources such as brine water, organic wastewater, seawater, and lake water, in which the quality of the evaporated water is better than drinkable water standard, and the evaporation performance is comparable to that of pure water.

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Dielectric‐Based Metamaterials for Near‐Perfect Light Absorption

Wang,

Qin,

Duan

et al. 2024

Adv Funct Materials

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The emergence of metamaterials and their continued prosperity have built a powerful working platform for accurately manipulating the behavior of electromagnetic waves, providing sufficient possibility for the realization of metamaterial absorbers with outstanding performance. However, metamaterial absorbers composed of metallic materials typically possess many unfavorable factors, such as non‐adjustable absorption, easy oxidation, low‐melting, and expensive preparation costs. The selection of dielectric materials provides excellent alternatives due to their remarkable properties, thus dielectric‐based metamaterial absorbers (DBMAs) have attracted much attention. To promote breakthroughs in DBMAs and guide their future development, this work systematically and deeply reviews the recent research progress of DBMAs from four different but progressive aspects, including physical principles; classifications, material selections and tunable properties; preparation technologies; and functional applications. Five different types of theories and related physical mechanisms, such as Mie resonance, guided‐mode resonance, and Anapole resonance, are briefly outlined to explain DBMAs having near‐perfect absorption performance. Mainstream material selections, structure designs, and different types of tunable DBMAs are highlighted. Several widely utilized preparation methods for customizing DBMAs are given. Various practical applications of DBMAs in sensing, stealth technology, solar energy absorption, and electromagnetic interference suppression are reviewed. Finally, some key challenges and feasible solutions for DBMAs’ future development are provided.

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Selective ceramic absorber with vertical pore structure for efficient solar evaporation

Cited by 14 publications

References 33 publications

(Ca0.25La0.5Dy0.25)CrO3 Ceramic Fiber@Biomass-Derived Carbon Aerogel with Enhanced Solute Transport Channels for Highly Efficient Solar Interface Evaporation

(Ca0.25La0.5Dy0.25)CrO3 Ceramic Fiber@Biomass-Derived Carbon Aerogel with Enhanced Solute Transport Channels for Highly Efficient Solar Interface Evaporation

Nickel Foam@Reduced Graphene Oxide–Carbon Nanotube Composite as an Efficient Solar Evaporator for Water Purification and Electricity Generation

Dielectric‐Based Metamaterials for Near‐Perfect Light Absorption

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