Both sweat drainage and evaporation play important roles in achieving personal moisture and thermal management during sweat-producing exercises. However, it remains a great challenge to simultaneously realize thermal management through radiative cooling for human body without perspiration. Herein, we report a bilayer nanoporous polyethylene membrane with anisotropic wettability, which possesses superior radiative cooling ability (∼2.6 °C lower than that of cotton) without perspiration. Meanwhile, it realizes efficient sweat drainage and good evaporation cooling property (∼1.0 °C lower than that of cotton) in perspiration to avoid sticky and hot sensation. In addition, it can also block water and fine particulate matter owing to the hydrophobic nanoporous structure. By virtue of the outstanding personal thermal and moisture management performance, it is expected that this study provides inspiration for designing new clothing and medical protective suits with more comfortable microclimates and reducing energy consumption for global sustainability.

Interfacial solar vapor generation offers a promising zero-CO 2 -consuming energy conversion technology for the production of renewable clean water. The key for boosting solar vapor efficiency relies on the rational design of materials composition and structure at the micro/nanoscale to improve light utilization. Here, we demonstrate a Janus evaporator based on a hydrophilic carbon-black-decorated copper oxide (C@CuO) membrane as the light-absorbing layer and an opposite hydrophobic polymer nanofibers as the thermal insulation layer, which enables efficient energy utilization and vapor generation through a synergistic light absorption and thermal confinement strategy. In addition, the hydrated C@CuO surface reduces vaporization enthalpy that accelerates the efficient evaporation of water. A high evaporation rate of 1.88 kg m −2 h −1 is achieved by the Janus evaporator under 1 sun irradiation. This high photothermal conversion rate and ultralow heat loss synergistic engineering offers a bright future for high-efficiency solar water purification applications.

Freestanding electrodes are critical for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs) with high energy density and long cycling stability. We fabricated freestanding MnO2 nanosheet-coated carbon nanofibers by synchronous in situ spraying of MnO2 nanosheets onto electrospinning polymer nanofibers, which might be a high-voltage electric field-induced assembly process. The designed film is used as anode material for LIBs and SIBs. It demonstrates good cycling stability without capacity loss after long cycling for LIBs, delivers a capacity of 256.4 mAh g–1 at 1.00 A g–1, and has an extremely stable cycle life for over 200 cycles at 0.05 A g–1. For SIBs, it delivers a capacity of 135.0 mAh g–1 at 1.00 A g–1 and has a stable cycle life for over 500 cycles at 0.50 A g–1. The capacitive contribution ratio increases from 44.4 to 76.2% (0.2–1.0 mV s–1), and the capacitive process plays a major role in the total capacity. The enhancement of the electrochemical performance is attributed to the good conductivity of the carbon nanofiber network and the one-dimensional (1D)/two-dimensional (2D) composite structure of the electrode, in which the high performance of carbon nanofibers and MnO2 nanosheets is fully exploited. Importantly, the combination of in situ spraying and electrospinning can be extended to two or more materials with different polarities, ζ-potential values, or solubilities, broadening the applications of composites.

TiO2@g-C3N4 core/shell fibers with a continuous g-C3N4 layer packing around exhibit high photocatalytic efficiency toward H2 production and RhB degradation due to the intimate core/shell structure with a high-quality TiO2/g-C3N4 heterojunction.

Hollow porous fibers with low emissivity and conductivity aluminum platelets skin for thermal insulation.