arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2201.11886cond-mat.mtrl-sciphysics.app-ph
收藏

通过氧化石墨烯膜中的面内纳米孔的质量传递

Mass transport via in-plane nanopores in graphene oxide membranes

Tobias Foller, Lukas Madauss, Dali Ji, Xiaojun Ren, K. Kanishka H. De Silva, Tiziana Musso Masamichi Yoshimura, Henning Lebius, Abdenacer Benyagoub, Priyank Kum… 展开作者

Tobias Foller, Lukas Madauss, Dali Ji, Xiaojun Ren, K. Kanishka H. De Silva, Tiziana Musso Masamichi Yoshimura, Henning Lebius, Abdenacer Benyagoub, Priyank Kumar, Marika Schleberger, Rakesh Joshi

摘要:

二维层压材料中的埃约束溶剂通过层间距、相邻片材之间的间隙以及平面孔中的通孔行进。其中,缺乏通过平面孔研究质量传递的实验途径。在这里,我们通过离子辐照在氧化石墨烯膜中创建这些纳米孔,精确控制官能团,孔径和孔密度。低离子诱导的孔密度导致膜的温和还原和增加的水渗透。较高的孔密度导致纯水的显著减少和完全堵塞,但是由于氢网络的弱化而允许乙醇-水混合物渗透。我们确认与模拟,即吸引力的溶剂对孔与官能团和破坏的埃限制的氢网络是至关重要的,允许在平面孔运输。

英文摘要:

Angstrom confined solvents in two-dimensional laminates travel through interlayer spacings, gaps between adjacent sheets, and via in plane pores. Among these, experimental access to investigate the mass transport through in plane pores is lacking. Here, we create these nanopores in graphene oxide membranes via ion irradiation with precise control over functional groups, pore size and pore density. Low ion induced pore densities result in mild reduction and increased water permeation for the membranes. Higher pore densities lead to pronounced reduction and complete blockage of pure water however allows permeation of ethanol water mixture due to weakening of hydrogen network. We confirm with simulations, that the attraction of the solvents towards the pores with functional groups and disruption of the angstrom confined hydrogen network is crucial to allow in plane pore transport.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑