2022
DOI: 10.1016/j.carbon.2022.07.030
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Single-shot production of Janus graphene thin film for solar steam generation with 94.5% efficiency

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Cited by 17 publications
(7 citation statements)
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“…30,31 Essentially, the 2D-patterned porous surface further minimizes the outcoupling of reflected light to about one percent, resulting in the reduced Fresnel's reflections at the air−UV-LIG interface and leading to higher absorption and excellent photothermal property. 32,33 Furthermore, owing to its excellent photothermal property, the absorbed energy is efficiently converted into heat, leading to a maximum equilibrium temperature of more than 90 °C within 60 s. Unlike the reported LIG formation using an IR laser, 31,25 our proposed UV-LIG exhibits a small average pore size in the range of a few hundred nanometers, which can effectively reduce the reflection loss because of the textured surface and large effective surface area of graphene foam. 34,35 In addition, the smaller pore size can significantly improve thermal conductivity with minimal radiation loss.…”
Section: ■ Introductionmentioning
confidence: 92%
See 1 more Smart Citation
“…30,31 Essentially, the 2D-patterned porous surface further minimizes the outcoupling of reflected light to about one percent, resulting in the reduced Fresnel's reflections at the air−UV-LIG interface and leading to higher absorption and excellent photothermal property. 32,33 Furthermore, owing to its excellent photothermal property, the absorbed energy is efficiently converted into heat, leading to a maximum equilibrium temperature of more than 90 °C within 60 s. Unlike the reported LIG formation using an IR laser, 31,25 our proposed UV-LIG exhibits a small average pore size in the range of a few hundred nanometers, which can effectively reduce the reflection loss because of the textured surface and large effective surface area of graphene foam. 34,35 In addition, the smaller pore size can significantly improve thermal conductivity with minimal radiation loss.…”
Section: ■ Introductionmentioning
confidence: 92%
“…Our two-dimensional patterned UV-LIG absorbs more than 99% of the sunlight falling on its surface due to the extraordinary absorbing capability of graphene foam and the light-trapping ability of the structure. Inherently, the graphene lattice contains a large number of conjugated π-bonds having a high probability of excitation over an entire solar spectrum which makes the material a suitable broadband absorber. , Essentially, the 2D-patterned porous surface further minimizes the out-coupling of reflected light to about one percent, resulting in the reduced Fresnel’s reflections at the air–UV-LIG interface and leading to higher absorption and excellent photothermal property. , Furthermore, owing to its excellent photothermal property, the absorbed energy is efficiently converted into heat, leading to a maximum equilibrium temperature of more than 90 °C within 60 s. Unlike the reported LIG formation using an IR laser, , our proposed UV-LIG exhibits a small average pore size in the range of a few hundred nanometers, which can effectively reduce the reflection loss because of the textured surface and large effective surface area of graphene foam. , In addition, the smaller pore size can significantly improve thermal conductivity with minimal radiation loss. Further, we have coupled the excellent light absorption and photothermal properties of structured UV-LIG with a commercially available thermoelectric generator to harness solar power more efficiently.…”
Section: Introductionmentioning
confidence: 99%
“…Recently, researchers have devoted to improving the water treatment performance of membranes, e.g., a single Janus absorber under solar irradiation achieved a stable water production (2.054 kg/ m 2 /h). 60 GO-based channels dominated by physical sieving and electrostatic interactions exhibit ultrahigh water permeability (70 ± 12 L/m 2 /h/bar), while the salt rejection performance depends on the size of hydrated ions. 61 Additionally, although some complex experimental processes improve both water permeability (9.1−17.4 L/m 2 /h) and salt rejection (52.4−78.3%), these require additional energy consumption such as external voltage.…”
Section: Effect Of Channel Geometrymentioning
confidence: 99%
“…and has demonstrated remarkable evaporation performance in previous studies. [31][32][33][34][35][36] In addition to the different types of photothermal materials, the structural design of current ISSGs also poses common challenges that significantly impact their evaporation rate and efficiency. First, the surfaces of most ISSGs are typically planar, resulting in lower light absorption.…”
Section: Introductionmentioning
confidence: 99%