空间科学学报2025，Vol.45Issue(2)：310-316,7.DOI:10.11728/cjss2025.02.2024-0161
火星富CO2大气环境下NaY沸石吸附分子污染物机制研究
Adsorption Mechanism of NaY Zeolite on Space Contaminants in the CO2-rich Atmosphere of Mars
摘要
Abstract
Zeolite can effectively collect space contaminants in real time,which is a new approach to control the space molecular contamination.During the long-duration flight,the Mars probe faces not on-ly a high-vacuum environment,but also a special CO2-rich environment in the Martian atmosphere.In order to overcome the molecular contamination of the highly sensitive analyzers and other optical sensi-tive parts of the Mars probe,and as well as to reduce the possibility of false-positive signs of life caused by the molecular contaminant,there is an urgent need to verify whether the zeolite molecular adsorp-tion coating can be applied to Mars probe mission.In order to simulate the special Martian atmospheric environment,this work focuses on the adsorption behavior of NaY zeolite on toluene under CO2 atmo-sphere.It is confirmed that CO2 molecules are mainly adsorbed at the β-cage site of NaY zeolite,while toluene molecules are prefer-entially adsorbed at the"super-cage"site.So the NaY zeolite is fully appli-cable under the real CO2-rich conditions in Martian atmosphere,and the adsorption properties of the coating on the low concentration molecular pollutants are not affected.关键词
火星探测器/富CO2 大气环境/NaY沸石/空间分子污染物/吸附机制Key words
Mars probe/CO2-rich Martian atmosphere/NaY zeolite/Space contamination/Adsorption mechanism引用本文复制引用
冯爱虎,戴洁燕,高旭,张青春,于云..火星富CO2大气环境下NaY沸石吸附分子污染物机制研究[J].空间科学学报,2025,45(2):310-316,7.基金项目
东方英才计划领军项目(原上海领军人才)(2023144),国家自然科学基金项目(52202076),中国科学院青年创新促进会会员项目(2023261)和中国科协青年人才托举工程项目(2023QNRC001)共同资助 （原上海领军人才）
