| Popis: |
Atmospheric humidity capture is urgently needed in humidity-related process. Most of the traditional technology suffers the defects of large energy consumption, low capture capacity, etc. Here, an intelligent gel (IG), which was composed of super hygroscopic materials (SHM, for humidity detection, spontaneous capture and in-situ liquefaction), hydrophilic polymer PEG-6000 (polyethylene glycol, for humidity storage), and hydrophobic polymer PVDF (poly(vinylidene-fluoride), for fast water release), is shown. Based on such kind of integration, effective color responsive humidity detection, spontaneous humidity capture and in-situ liquefaction, under ambient conditions, have been achieved. The synergistic effects between two polymers have given birth to a 3D polymer framework that can shrink upon heating and swelling upon solvent immersion, which then act as a versatile matrix that dispersed evenly the 2D SHM into atomically scale. As a consequence, approximate 4081 times increase in working capacity than the individual SHM has been observed. Being an effective way to manipulate atmospheric humidity at the device level, the present work may open new avenue for next-generational water management systems. |
