罗彻斯特大学研究人员开发了一种太阳能海水淡化系统，能够将海水转化为淡水，同时以固体形式提取近100%的溶解盐分，避免产生有害的液态卤水1。该创新技术采用经飞秒激光处理的黑色金属面板，利用咖啡环效应将盐分推向面板边缘进行收集1。
该系统还能从淡化过程中回收有价矿物，将原本作为废弃物的盐分转化为有用资源1。研究人员从大盐湖样品中成功回收了约50%的锂1。这项研究由国家科学基金会、比尔及梅琳达·盖茨基金会和全球大学网络资助，相关成果已发表在《Light: Science & Applications》和《Journal of Materials Chemistry A》期刊1。
根据联合国估计，全球22亿人无法获得安全饮用水1，这一技术的突破对解决全球水资源短缺问题具有重要意义。
Researchers at the University of Rochester have developed a solar-powered desalination system that converts seawater into fresh water while extracting salt in solid form rather than producing liquid brine. 1 The technology employs black metal panels treated with femtosecond lasers—pulses lasting one quadrillionth of a second—to harness the coffee-ring effect, which pushes salt deposits toward the panel's edges. 1 The system recovers nearly 100 percent of dissolved salts in solid form, eliminating the environmental burden of traditional desalination. 1
Beyond water purification, the innovation addresses resource scarcity by extracting valuable minerals from the salt waste. 1 Testing on samples from the Great Salt Lake revealed the system can recover approximately 50 percent of lithium, transforming desalination byproducts into economically useful materials. 1
The research responds to a pressing global need, as the United Nations estimates that 2.2 billion people lack access to safe drinking water. 1 The work was funded by the National Science Foundation, the Bill & Melinda Gates Foundation, and a global university network, with findings published in Light: Science & Applications and the Journal of Materials Chemistry A. 1
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