本文采用分子动力学方法研究了常温(300 K)条件,不同气相密度下H2S/CH4二元混合物在石墨烯表面的吸附性能.讨论了气相密度对气-固界面张力,表面吸附量及吸附选择性的影响,并统计了密度分布,法相及切向压力分布.此外,还讨论了石墨烯表面缺陷对混合物吸附的影响.研究表明H2S/CH4二元混合物在石墨烯表面的吸附可视为单分子层吸附;且吸附选择性与气-固界面张力均随着气相密度的增加而增大;H2S与CH4均在石墨烯表面缺陷处存在一明显的吸附峰.
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