Visualization of temperature distribution and flow behavior in water evaporation using water-soluble spiropyran

Wenjing Wang, Sibo Wan, Yahui Chen, Yu Fang, Sheng Lu, Hao Gu, Yourong Li, Xiaoqiang Chen

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1 引用 (Scopus)

摘要

Understanding the convection flows driven by the uneven temperature distribution in heated aqueous solutions is fascinating and meaningful both in fundamental and industrial aspects. Therefore, it is desirable to develop a simple and convenient method for real-time tracking of surface temperature distribution and the solvent flow state. Herein, we designed and screened a water-soluble spiropyran derivative (BS-SP1) that contains benzothiazole and sulfonic acid groups. The BS-SP1 molecule was found to exceptionally maintain the reversible photochromic characteristics in water, and then served as a photo-responsive indicator for visualizing the temperature distribution and flow behavior on water surface with high resolution. This study provides feasible guidance on the dynamic self-assembly and thermodynamics occurring in the water evaporation system and offers a practical tool for investigating these behaviors.

源语言英语
文章编号e18399
期刊AIChE Journal
70
6
DOI
出版状态已出版 - 6月 2024

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