Hann-Deschaine Noah, Viradia Neha M, Pujols Jeiko J, Miller Sarah, Adhikari Ramesh Y
Department of Physics & Astronomy, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States.
ACS Appl Eng Mater. 2024 Aug 5;2(8):2219-2226. doi: 10.1021/acsaenm.4c00381. eCollection 2024 Aug 23.
Due to the pervasive use of oil for energy and other industrial applications, solutions to oil-water separation have received a great deal of attention lately to address the environmental damage of oil spills and groundwater contamination. However, many of these separation methods are materially expensive and environmentally hazardous, require elaborate fabrication, or rely on large amounts of energy to function. Herein, we provide an effective low-cost method for oil-water separation based on the hydrophobicity induced by self-assembled bioinspired diphenylalanine peptide nanowires grown on polyester fabric. This modified polyester fabric mesh exhibits parahydrophobicity and oleophilicity due to the hierarchical nano-to-microscale surface roughness. This mesh also achieves consistent high water separation efficiencies of over 99% and an ultrahigh oil flux of up to 26.7 ± 5 kLm·h. The growth of bioinspired peptide-based nanostructures on fabrics using facile technique and their application in oil-water separation presents the potential for using bioinspired materials for environmental remediation while minimizing environmental footprint.
由于石油在能源和其他工业应用中的广泛使用，油水分离解决方案近来备受关注，以应对石油泄漏对环境的破坏和地下水污染问题。然而，许多此类分离方法成本高昂、对环境有害，需要精心制造，或依赖大量能源来运行。在此，我们基于在聚酯织物上生长的自组装仿生二苯基丙氨酸肽纳米线所诱导的疏水性，提供了一种有效的低成本油水分离方法。这种改性聚酯织物网由于具有从纳米到微米尺度的分级表面粗糙度，呈现出超疏水性和亲油性。该网还实现了超过99%的一致高水分离效率和高达26.7±5 kLm·h的超高油通量。利用简便技术在织物上生长基于仿生肽的纳米结构及其在油水分离中的应用，展现了使用仿生材料进行环境修复同时最小化环境足迹的潜力。
