Sunlight‐Driven Water Transport via a Reconfigurable Pump

Geng, Hongya; Zhou, Ke; Zhou, Jiajia; Ma, Hongyun; Lv, Cunjing; Li, Chun; Xu, Zhiping; Qu, Liangti

doi:10.1002/ange.201808835

Cited by 14 publications

(14 citation statements)

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“…The mechanism underpinning transpiration and guttation is attributed to the photothermal effect of PG and a drastic water content change arises from the hydrophilicity/hydrophobicity switch of the PN, respectively. The thermoresponsiveness of PN enables the volume phase transition, which drives liquid water to be oozed for the guttation process 29 . The hydrophilicity/hydrophobicity switch of the PN was demonstrated by the water contact angle (WCA).…”

Section: Resultsmentioning

confidence: 99%

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Plant leaves inspired sunlight-driven purifier for high-efficiency clean water production

et al. 2019

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Natural vascular plants leaves rely on differences in osmotic pressure, transpiration and guttation to produce tons of clean water, powered by sunlight. Inspired by this, we report a sunlight-driven purifier for high-efficiency water purification and production. This sunlight-driven purifier is characterized by a negative temperature response poly(N-isopropylacrylamide) hydrogel (PN) anchored onto a superhydrophilic melamine foam skeleton, and a layer of PNIPAm modified graphene (PG) filter membrane coated outside. Molecular dynamics simulation and experimental results show that the superhydrophilicity of the relatively rigid melamine skeleton significantly accelerates the swelling/deswelling rate of the PNPG-F purifier. Under one sun, this rational engineered structure offers a collection of 4.2 kg m −2 h −1 and an ionic rejection of > 99% for a single PNPG-F from brine feed via the cooperation of transpiration and guttation. We envision that such a high-efficiency sunlight driven system could have great potential applications in diverse water treatments.

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Section: Resultsmentioning

confidence: 99%

“…While the water-transport channels closed, the water content further decreases, inhibiting the steam generation and water oozing. The reason for the tuneable porous structure of the PNPG-F arose from the hydrophobic/hydrophilic switch of PNIPAm chains and a changeable laminal distance of PG nanosheets 29,40 .…”

Section: Resultsmentioning

confidence: 99%

Plant leaves inspired sunlight-driven purifier for high-efficiency clean water production

et al. 2019

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“…Graphene has garnered extensive attention because of unique 2D structure and superior properties . The flexibility, large surface area, chemical stability, and remarkable conductivity together endow it the potential to reform the landscape of LBs .…”

Section: Preparation Of Carbon‐based Nanomaterialsmentioning

confidence: 99%

Structure Design and Composition Engineering of Carbon‐Based Nanomaterials for Lithium Energy Storage

Geng

Peng

et al. 2020

Advanced Energy Materials

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Carbon‐based nanomaterials have significantly pushed the boundary of electrochemical performance of lithium‐based batteries (LBs) thanks to their excellent conductivity, high specific surface area, controllable morphology, and intrinsic stability. Complementary to these inherent properties, various synthetic techniques have been adopted to prepare carbon‐based nanomaterials with diverse structures and different dimensionalities including 1D nanotubes and nanorods, 2D nanosheets and films, and 3D hierarchical architectures, which have been extensively applied as high‐performance electrode materials for energy storage and conversion. The present review aims to outline the structural design and composition engineering of carbon‐based nanomaterials as high‐performance electrodes of LBs including lithium‐ion batteries, lithium–sulfur batteries, and lithium–oxygen batteries. This review mainly focuses on the boosting of electrochemical performance of LBs by rational dimensional design and porous tailoring of advanced carbon‐based nanomaterials. Particular attention is also paid to integrating active materials into the carbon‐based nanomaterials, and the structure–performance relationship is also systematically discussed. The developmental trends and critical challenges in related fields are summarized, which may inspire more ideas for the design of advanced carbon‐based nanostructures with superior properties.

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“…In particular, this thermal response surface shows outstanding rewritable capability. Besides, Geng et al have made intensive efforts to develop a photothermal responsive tube based on PDMS/rGO-PNIPAm ( Figure 1h ; Geng et al, 2018 ). rGO converts light into heat.…”

Section: Surfaces With Switchable Wettabilitymentioning

confidence: 99%

“…(h) Photothermal response. Reproduced from Geng et al ( 2018 ) with permission of WILEY-VCH. (i) Electric response.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired Surfaces With Switchable Wettability

et al. 2020

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The surface wettability of plants exhibits many unique advantages, which enhances the environmental adaptability of plants. In view of the rapid development of responsive materials, smart surfaces have been explored extensively to regulate surface wettability through external stimuli. Herein, we summarized recent advancements in bioinspired surfaces with switchable wettability. Typical bioinspired surfaces with switchable wettability and their emerging applications have been reviewed. In the end, we have discussed the remaining challenges and provided perspective on future development.

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Sunlight‐Driven Water Transport via a Reconfigurable Pump

Abstract: Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

Cited by 14 publications

References 53 publications

Plant leaves inspired sunlight-driven purifier for high-efficiency clean water production

Plant leaves inspired sunlight-driven purifier for high-efficiency clean water production

Structure Design and Composition Engineering of Carbon‐Based Nanomaterials for Lithium Energy Storage

Bioinspired Surfaces With Switchable Wettability

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