| Author Name | Affiliation | | Xianghua Gong | School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150000, China | | Yang Li | School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150000, China | | Zhen Zhang | School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150000, China | | Xiaohong Wu | School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150000, China |
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| Abstract: |
| When spacecraft operate in space, most organic materials will release small molecular hydrocarbons and large molecular organic gases due to gas evolution effect under high vacuum conditions. These gases can deposit on the surface of spacecraft, adversely affecting its performance. Adsorption becomes the first choice for removing such organic pollutants in the space environment. Zeolite material has a stable and dense porous structure, and has been widely used in the field of pollution adsorption. In this work, Al2O3 was deposited on the surfaces of 5A zeolite for the first time by atomic layer deposition (ALD) technology. As a result, the adsorption performance of Al2O3 coated 5A zeolite (zeolite@ Al2O3) was significantly modified. The corresponding adsorption process was clarified via adsorption kinetics study. |
| Key words: zeolite Al2O3 coating space contamination control ALD kinetics |
| DOI：10.11916/j.issn.1005-9113.20043 |
| Clc Number:TQ424.2 |
| Fund: |
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| Descriptions in Chinese: |
| 原子层沉积界面工程优化沸石对空间分子污染物的吸附性能 宫向华，李杨*，张珍，吴晓宏* （哈尔滨工业大学，化工与化学学院，哈尔滨150000） 中文说明：航天器在轨运行期间，在高真空的空间极端环境条件下，大多数有机材料都会释放出小分子碳氢化合物和大分子有机气体，这些气体会沉积在航天器表面，从而对航天器的性能产生不利影响。采用吸附材料去除污染物是空间分子污染控制的理想方案之一。沸石材料具有稳定致密的多孔结构，在污染吸附领域具有广泛应用。本研究采用原子层沉积（ALD）技术在5A沸石表面沉积Al2O3，结果表明，所制备的Al2O3包覆5A沸石的有机污染物吸附性能得到改善，并通过吸附动力学研究阐明了相应的吸附过程。 关键词：沸石，Al2O3涂层，空间污染控制，ALD，动力学 |
