We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
3D Cellulose‐Based Solar Evaporator with Tunable Porous Structures for High Steam Generation.
- Authors
Jin, Bowen; Cui, Tongtong; He, Yisheng; Zhang, Mingxin; Qi, Yanpeng; Ye, Chunhong
- Abstract
Solar vapor evaporation have emerged as a promising green technology to harvest fresh water. Achieving high evaporation rates while employing accessible and renewable materials is key focus in this field. Here, a 3D cylindrical‐shaped solar evaporator composed of natural cellulose is fabricated through ice‐templating freezing combined with crosslinking gelation. It demonstrates an evaporation rate of 4.2 kg m−2 h−1 under 1 sun irradiation, and reaches an energy efficiency of 173%, surpassing most reported cellulose/wood‐based evaporators. This enhanced performance is facilitated by absorbing energy from surrounding, possessing connected pores, and reducing the evaporation enthalpy. Moreover, a systematic exploration of the correlation between pore size and evaporation performance reveals that the reduced pore size (several micrometers) does not necessarily result in a higher evaporation rate, despite improving the fluid transportation. The interaction between water and cellulose induces the formation of intermediate water and reduces the evaporation enthalpy by more than 35%. Thus, the final evaporation performance is determined by a synergistic effect involving water transport, hydrophilicity, and vaporization enthalpy. Giving the high evaporation rate achieved, this 3D cellulose‐based solar evaporator presents a promising candidate toward a high‐throughput, eco‐friendly solar steam generation devices, aligning well with the criteria of green and sustainable development.
- Subjects
EVAPORATORS; HEATS of vaporization; WATER harvesting; FRESH water; SUSTAINABLE development
- Publication
Advanced Sustainable Systems, 2024, Vol 8, Issue 6, p1
- ISSN
2366-7486
- Publication type
Article
- DOI
10.1002/adsu.202300670