光学精密工程2025，Vol.33Issue(22)：3489-3501,13.DOI:10.37188/OPE.20253322.3489
泡沫铝基太阳能海水淡化界面蒸发体的皮秒激光加工实验与分析
Experimental research and analysis on picosecond laser processing of foam Aluminum-based solar evaporators for interface evaporation in seawater desalination
摘要
Abstract
Regarding the solar-driven interfacial evaporation technology,in view of the huge challenges faced by interfacial evaporators in terms of preparation cost and long-term evaporation stability,research is carried out to prepare interfacial evaporators with high efficiency,low cost,and long-term stable opera-tion,promote the practical application of sustainable water purification technology,and alleviate the global shortage of fresh water resources.First,the picosecond laser processing technology of aluminum foam-based interfacial evaporators was proposed to study the effects of different laser processing parameters such as single pulse energy,scanning speed,scanning interval,and number of repeated processing on the sur-face morphology and elements of aluminum foam interfacial evaporators.Secondly,the seawater desalina-tion effects of evaporators under different parameters were compared to determine the optimal processing parameters.Finally,the water production performance was verified through outdoor seawater desalination experiments.The optimal processing parameters are as follows:scanning interval of 30 μm,single pulse energy of 380 μJ,scanning speed of 100 mm/s,and repeated processing for 1 time.When the light intensi-ty is 1 kW/m2,the evaporation rate reaches 5.52 kg·m-2·h-1,and the water production in the real environ-ment reaches 5.37 kg·m-2 over 8 hours.In 15 wt%high-concentration brine,the evaporation rate still re-mains at 4.03 kg·m-2·h-1.The concentrations of K⁺,Mg2⁺,Ca2⁺,B3⁺,and Na⁺ ions in the desalinated water are significantly reduced,meeting the drinking water standards of the World Health Organization(WHO).This study investigates the fabrication of aluminum foam-based interfacial evaporators via pico-second laser processing,determining the optimal parameters.The prepared evaporators exhibit high effi-ciency,excellent salt resistance,and potential for long-term stable operation,providing new insights for the research and development of interfacial evaporators and promoting the practical application of sustain-able water purification technologies.关键词
太阳能驱动的界面蒸发技术/界面蒸发体/皮秒激光/产水量/耐盐性Key words
solar-driven interfacial evaporation technology/interfacial evaporator/picosecond laser/wa-ter production/salt resistance分类
信息技术与安全科学引用本文复制引用
TANG Zhiliang,LIU Yuhao,HU Shuangshuang,CHU Dongkai,QU Shuoshuo,YAO Peng..泡沫铝基太阳能海水淡化界面蒸发体的皮秒激光加工实验与分析[J].光学精密工程,2025,33(22):3489-3501,13.基金项目
国家重点研发计划(No.2023YFC2413300) （No.2023YFC2413300）
国家自然科学基金(No.U23A20632) （No.U23A20632）
山东省重点研发计划(重大科技创新项目)(No.2023CXGC010207) （重大科技创新项目）
山东省自然科学基金(No.ZR2021QE247) （No.ZR2021QE247）
