蒸发器
材料科学
蒸发
水蒸气
自愈水凝胶
化学工程
压电
太阳能
工艺工程
纳米技术
复合材料
化学
机械工程
电气工程
高分子化学
工程类
物理
热交换器
有机化学
热力学
作者
Sen Meng,Chunyan Tang,Jie Yang,Jie Yang,Jie Yang
标识
DOI:10.1002/advs.202204187
摘要
Solar interfacial vapor generation based on low evaporation energy requirements is an effective technology to speed up water purification under natural sunlight, offering great potential to alleviate the current global water crisis. The external electric field and hydrogel are two independent methods enabling low-energy water evaporation. However, the complicated external equipment for generating an electric field and the restricted activation area of hydrogels significantly limit their practical application in steam generation. Thus, a piezoelectric fiber membrane is embedded into a highly hydratable light-absorbing poly(vinyl alcohol) (PVA) hydrogel for synergistic water activation. The integrated evaporator is capable of continuously converting the wave energy reserved in the ocean into electrical energy, activating the water in the hydrogel. It is found that the activation effect leads to an improvement of over 23% compared to a non-piezoelectric hydrogel evaporator. This work provides an evaporation prototype based on the synergistic water activation of wave-triggered electricity and highly hydratable hydrogel.
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