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Open Access Research Article Issue
Dual-mode triboelectric field polarization induced sweat evaporation for personal moisture management cotton textiles
Nano Research 2025, 18(6): 94907469
Published: 16 May 2025
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Cotton fiber, as a soft and skin-friendly natural fiber, is gaining increasing attention, but how to realize the ideal cotton fabric for sweat rapid evaporation remains challenging. Herein, for the first time, a personal moisture management cotton electronic textile (PMMC e-textile) with a pleated structure and dual-mode triboelectric promoting evaporation is developed. The PMMC e-textile can not only rapidly evaporate sweat in the form of small molecules through electric field polarization, but also stably monitor the movement signal of the human body in the state of sweating. In the two working modes, the water evaporation rate is 0.210 g/h in the triboelectric field generated in the horizontal stretching–recovery mode, and 0.247 g/h in the vertical contact separation mode (1.41 and 1.66 times faster than cotton fabric, respectively). This work exhibits a good fusion of wet comfort textiles and wearable electronics.

Research Article Issue
Reconfiguration and self-healing integrated Janus electrospinning nanofiber membranes for durable seawater desalination
Nano Research 2023, 16(1): 489-495
Published: 05 August 2022
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Downloads:98

Janus electrospinning nanofiber membranes have attracted extensive attention in the fields such as solar-driven interfacial desalination, liquid filtration, and waterproof and breathable fabrics. However, the Janus structures suffer from weak interfacial bonding and vulnerability to damage, making the durability and sustainability are highly sought after in real-word applications. Herein, we fabricate the simply reconfigurable and entirely self-healing Janus evaporator by electrospinning polypropylene glycol based polyurethane (PPG@PU) and polydimethylsiloxane based polyurethane-CNTs (PDMS@PU-CNTs) with different wettability, which are both designed based on dynamic Diels–Alder (DA) bond. The interface of the Janus membrane is stitched by the covalent bonds to directly improve the interface adhesion to 22 N·m−1, constructing an integrated evaporator, and thereby achieving a stable desalination rate of 1.34 kg·m−2·h−1 under one sun. Reversible dissociation of DA networks allows the evaporators for self-healing and reconfiguration abilities, after which the photothermal performance is maintained. This is the first work for the crosslinked self-healing polymer to be directly electrospun, achieving the improved interfacial bond and reconfiguration of entire evaporators, which presented promising new design principles and materials for interfacial solar seawater desalination.

Research Article Issue
A Rapid-Ab/Desorption and Portable Photothermal MIL-101(Cr) Nanofibrous Composite Membrane Fabricated by Spray-Electrospinning for Atmosphere Water Harvesting
Energy & Environmental Materials 2023, 6(1)
Published: 28 July 2021
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MIL-101(Cr) is a promising moisture absorbent for solar-driven waterharvesting from moisture to tackle the worldwide water shortage issue.However, the MIL-101(Cr) powder suffers from a long ab/desorption cycledue to the crystal aggregation caused by its inherent powder properties.Here, we demonstrate a MIL-101(Cr) nanofibrous composite membrane witha nanofibrous matrix where MIL-101(Cr) is monodisperse in the 3D porousnanofibrous matrix through a simple spray-electrospinning strategy. Thecontinuous porous nanofibrous matrix not only offers sufficient sites for MIL-101(Cr) loading but also provides rapid moisture transport channels,resulting in a super-rapid ab/desorption duration of 50 min (including anabsorption process for 40 min and a desorption process for 10 min) andmulticycle daily water production of 15.9 L kg−1 d−1. Besides, the MIL-101 (Cr) nanofibrous composite membrane establishes a high solar absorption of 92.8%, and excellent photothermal conversion with the surface temperature of 70.7 °C under one-sun irradiation. In addition, the MIL-101(Cr) nanofibrous composite membrane shows excellent potential for practical application due to its flexibility, portability, and use stability. This work provides a new perspective of shortening MOF ab/desorption duration by introducing a porous nanofibrous matrix to improve the specific water production for the solar-driven ab/desorption water harvesting technique.

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