2025-11-03 カリフォルニア大学リバーサイド校（UCR）
Web要約 の発言：
＜関連情報＞
- https://news.ucr.edu/articles/2025/11/03/uv-light-holds-promise-energy-efficient-desalination
- https://pubs.acs.org/doi/10.1021/acsami.5c12331
非光熱塩水蒸発に向けたスペクトル選択性界面および材料：白色セラミックウィックを用いた実証 Spectrum Selective Interfaces and Materials toward Nonphotothermal Saltwater Evaporation: Demonstration with a White Ceramic Wick
Navindra Singh,James Leung,Ji Feng,Alma K. González-Alcalde,Arial Tolentino,David Tuft,Juchen Guo,and Luat T. Vuong
ACS Applied Materials & Interfaces Published: October 10, 2025
DOI:https://doi.org/10.1021/acsami.5c12331
Abstract
Most solar desalination efforts are photothermal: they evaporate water with “black” materials that absorb as much sunlight as possible. Such “brine-boiling” methods are limited by the high thermal mass of water, i.e., its capacity to store and release heat. Here, we study the light-enhanced evaporation by a hard, white, aluminum nitride wick, and propose a route to selectively target salt-water bonds instead of bulk heating via deep-UV interactions. Through experiments and analyses that isolate the effects of light absorption and heating in aluminum nitride, we provide experimental evidence of a light-driven, spectrum-selective path to nonphotothermal saltwater evaporation. Leverage of these light-matter interactions in white ceramic wicks may achieve low-cost, low-energy desalination, reduce the heat island effects of traditional solar technologies, and contribute to future cooling technologies where drought is also a concern.
