Experimental Investigation of Soil Adsorption Effects on Water Migration in Simulated Lunar Conditions
Adsorption is a key mechanism governing water vapor diffusion in lunar regolith. To investigate this process, we conducted experiments under simulated lunar conditions—Knudsen diffusion conditions—using three soil types with varying water vapor adsorption heats and specific surface areas. Results sh...
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IOP Publishing
2025-01-01
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| Series: | The Planetary Science Journal |
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| Online Access: | https://doi.org/10.3847/PSJ/ade5b0 |
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| _version_ | 1849329378425569280 |
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| author | Yasheng Li Zhi Wen Wei Ma Mingli Zhang Chengdan He |
| author_facet | Yasheng Li Zhi Wen Wei Ma Mingli Zhang Chengdan He |
| author_sort | Yasheng Li |
| collection | DOAJ |
| description | Adsorption is a key mechanism governing water vapor diffusion in lunar regolith. To investigate this process, we conducted experiments under simulated lunar conditions—Knudsen diffusion conditions—using three soil types with varying water vapor adsorption heats and specific surface areas. Results show that soils with higher adsorption heat and larger surface area captured more water vapor. Lower temperatures enhanced water retention across all soil types. In samples with underlying ice, upward migration of water vapor was hindered by adsorption onto soil particles, reducing water loss. Montmorillonite, with its superior adsorption properties, retained the most water under all test conditions. These findings suggest that cold lunar regoliths with high adsorption capacity may act as a favorable reservoir for water accumulation. |
| format | Article |
| id | doaj-art-0b1e1c5dc63047d9846ebe22a0e398bc |
| institution | Kabale University |
| issn | 2632-3338 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Planetary Science Journal |
| spelling | doaj-art-0b1e1c5dc63047d9846ebe22a0e398bc2025-08-20T03:47:17ZengIOP PublishingThe Planetary Science Journal2632-33382025-01-016819610.3847/PSJ/ade5b0Experimental Investigation of Soil Adsorption Effects on Water Migration in Simulated Lunar ConditionsYasheng Li0Zhi Wen1Wei Ma2Mingli Zhang3Chengdan He4Key Laboratory of Cryospheric Science and Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences , Lanzhou 730000, People’s Republic of China ; wenzhi@lzb.ac.cn; Key Laboratory of Petroleum Resources Exploration and Evaluation , Gansu Province, Lanzhou 730000, People’s Republic of ChinaKey Laboratory of Cryospheric Science and Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences , Lanzhou 730000, People’s Republic of China ; wenzhi@lzb.ac.cnKey Laboratory of Cryospheric Science and Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences , Lanzhou 730000, People’s Republic of China ; wenzhi@lzb.ac.cnKey Laboratory of Cryospheric Science and Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences , Lanzhou 730000, People’s Republic of China ; wenzhi@lzb.ac.cn; College of Civil Engineering, Lanzhou University of Technology , Lanzhou, Gansu 730050, People’s Republic of China; Geological Hazards Prevention Institute, Gansu Academy of Sciences , Lanzhou, Gansu 730000, People’s Republic of ChinaScience and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Space Technology Physics , Lanzhou 730000, People’s Republic of ChinaAdsorption is a key mechanism governing water vapor diffusion in lunar regolith. To investigate this process, we conducted experiments under simulated lunar conditions—Knudsen diffusion conditions—using three soil types with varying water vapor adsorption heats and specific surface areas. Results show that soils with higher adsorption heat and larger surface area captured more water vapor. Lower temperatures enhanced water retention across all soil types. In samples with underlying ice, upward migration of water vapor was hindered by adsorption onto soil particles, reducing water loss. Montmorillonite, with its superior adsorption properties, retained the most water under all test conditions. These findings suggest that cold lunar regoliths with high adsorption capacity may act as a favorable reservoir for water accumulation.https://doi.org/10.3847/PSJ/ade5b0Lunar scienceLunar atmosphereLunar mineralogyLunar surface |
| spellingShingle | Yasheng Li Zhi Wen Wei Ma Mingli Zhang Chengdan He Experimental Investigation of Soil Adsorption Effects on Water Migration in Simulated Lunar Conditions The Planetary Science Journal Lunar science Lunar atmosphere Lunar mineralogy Lunar surface |
| title | Experimental Investigation of Soil Adsorption Effects on Water Migration in Simulated Lunar Conditions |
| title_full | Experimental Investigation of Soil Adsorption Effects on Water Migration in Simulated Lunar Conditions |
| title_fullStr | Experimental Investigation of Soil Adsorption Effects on Water Migration in Simulated Lunar Conditions |
| title_full_unstemmed | Experimental Investigation of Soil Adsorption Effects on Water Migration in Simulated Lunar Conditions |
| title_short | Experimental Investigation of Soil Adsorption Effects on Water Migration in Simulated Lunar Conditions |
| title_sort | experimental investigation of soil adsorption effects on water migration in simulated lunar conditions |
| topic | Lunar science Lunar atmosphere Lunar mineralogy Lunar surface |
| url | https://doi.org/10.3847/PSJ/ade5b0 |
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