Making Interfacial Solar Evaporation of Seawater Faster than Fresh Water.

Interfacial solar evaporation-based seawater desalination is regarded as one of the most promising strategies to alleviate freshwater scarcity. However, the solar evaporation rate of real seawater is significantly constricted by the ubiquitous salts present in seawater. In addition to the common issue of salt accumulation on the evaporation surface during solar evaporation, strong hydration between salt ions and water molecules leads to a lower evaporation rate for real seawater compared to pure water.

Advances in photothermal regulation strategies: from efficient solar heating to daytime passive cooling.

Photothermal regulation concerning solar harvesting and repelling has recently attracted significant interest due to the fast-growing research focus in the areas of solar heating for evaporation, photocatalysis, motion, and electricity generation, as well as passive cooling for cooling textiles and smart buildings. The parallel development of photothermal regulation strategies through both material and system designs has further improved the overall solar utilization efficiency for heating/cooling. In this review, we will review the latest progress in photothermal regulation, including solar heating and passive cooling, and their manipulating strategies.

Fiber-spinning Asymmetric Assembly for Janus-structured Bifunctional Nanofiber Films towards All-Weather Smart Textile.

Given health threat by global warming and increased energy consumption in regulating body temperature, it is an urgent need to construct smart temperature-regulating materials. Herein, a novel fiber-spinning asymmetric chemical assembly (FACA) method is proposed to construct nanofiber materials with asymmetric photothermal properties. The silver nanowires (AgNWs) and poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) with opposite thermal radiation are assembled on reduced graphene oxide (rGO) film, imparting AgNW/rGO/PVDF-HFP film with Janus structure that can realize the AgNWs side consistently keeps temperature of ca.

Stable and large-scale organic-inorganic halide perovskite nanocrystal/polymer nanofiber films prepared a green fiber spinning chemistry method.

Organic-inorganic halide perovskite nanocrystals (PNCs) have shown great advantages in recent years due to their tunable emission wavelengths, narrow full-width at half-maximum (FWHM) and high photoluminescence quantum yield (PLQY). However, PNCs still face the challenges of poor stability, difficulty in processing and generation of heavy metal wastes; therefore, it is necessary to develop a green synthetic method to prepare PNCs. Here, we present for the first time a facile fiber spinning chemistry (FSC) method for the rapid preparation of organic-inorganic halide PAN/MAPbX (MA = CHNH, X = Cl, Br and I) nanofiber films at room temperature.