红外与毫米波学报2025，Vol.44Issue(2)：192-202,11.DOI:10.11972/j.issn.1001-9014.2025.02.007
拉曼光谱对月面典型矿物中水冰的定量检测
Quantitative detection of water/ice in typical lunar minerals using Raman spectroscopy
摘要
Abstract
The presence of water in lunar materials can significantly impact the evolution of lunar geology and environ-ment,as well as provide necessary conditions for the utilization of lunar resources.However,due to the limitations of lunar remote sensing methods,it is challenging to obtain direct evidence of water or determine its form of occurrence.Laser Raman spectroscopy,on the other hand,can provide valuable information on the type,distribution,and content of water in lunar materials without the need for illumination,sample pretreatment,or destructive measures.In this study,we utilized Raman spectroscopy to detect and quantify the water-containing characteristics of typical lunar rocks and minerals,including adsorbed water,ice,crystalline water,and hydroxyl-structured water.First,we used a 532 nm laser micro-Raman spectroscopy to identify and analyze the water-containing signals of various forms of water in lunar soil simulants.We then examined and analyzed the detection limits of adsorbed water,crystalline water,and hydroxyl-structured water in these simulants,as well as the relationship between their content and signal intensity.Finally,we employed linear regression(LR),ridge regression(RR),and partial least squares regression(PLSR)to quantitatively analyze the contents of these three forms of water in the lunar soil simulants.Our results demonstrate that the character-istic spectral peaks of the four forms of water in the lunar soil simulants can be clearly identified,with peak distribution regions located at 100-1 700 cm-1 and 2 600-3 900 cm-1 for the lunar soil components and water bodies,respectively.The spectral peaks of water are a combination of broad envelope peaks of hydrogen-bonded OH and sharp peaks of non-hydrogen-bonded OH stretching vibrations in varying proportions.The detection limits for adsorbed water,crystalline water(MgSO4·7H2O),and hydroxyl water(Al2Si2O5(OH)4)in the lunar soil simulants are 1.3 wt％,0.8 wt％,and 0.3 wt％,respectively.There is a linear relationship between the intensity of water-containing peaks and the water con-tent in the lunar soil simulants,with root mean square errors of 1.75 wt％,1.16 wt％,and 1.19 wt％obtained through LR,RR,and PLSR.关键词
拉曼光谱/物质成分/月球南极/水冰探测/定量分析Key words
Raman spectroscopy/material composition/lunar south pole/water ice detection/quantitative analysis分类
物理学引用本文复制引用
闻道远天,赵海艇,刘向锋,徐卫明,许学森,雷欣瑞,舒嵘..拉曼光谱对月面典型矿物中水冰的定量检测[J].红外与毫米波学报,2025,44(2):192-202,11.基金项目
国家重大专项(CEY101-7-X) （CEY101-7-X）
上海自然科学基金(23ZR1473200) （23ZR1473200）
中国科学院空间主动光电技术重点实验室基金(CXJJ-22S019) （CXJJ-22S019）
浙江省自然科学基金白马湖实验室区域创新发展联合基金资助项目(LBMHZ24F050003) （LBMHZ24F050003）
国科大杭州高等研究院专项资金资助Supported by the National Key Special Project(CEY101-7-X),the Natural Science Foundation of Shanghai Municipality(23ZR1473200),the Key Laboratory of Space Active Opto-electronics Technology,Chinese Academy of Sciences(CXJJ-22S019),the Baima Lake Laboratory Joint Funds of the Zhejiang Provincial Natural Science Foundation of China under Grant(LBMHZ24F050003),the Research Funds of Hangzhou Institute for Advanced Study,UCAS （CEY101-7-X）
