Future Industries Institute, University of South Australia, Mawson Lakes 5095, South Australia, Australia; School of Engineering, University of South Australia, Mawson Lakes 5095, South Australia, Australia; Research Unit for Natural Product Technology, Indonesian Institutes of Sciences, Gunungkidul 55861, Yogyakarta, Indonesia.
Future Industries Institute, University of South Australia, Mawson Lakes 5095, South Australia, Australia.
Environ Pollut. 2018 Sep;240:725-732. doi: 10.1016/j.envpol.2018.05.023. Epub 2018 May 16.
Oil pollution of waters is one of the most serious environmental problems globally. The long half-life and persistence within the environment makes oil particularly toxic and difficult to remediate. There is a significant need for efficient and cost-effective oil recovery technologies to be brought in to practice. In this study, we developed a facile and efficient magnetic separation method. The surface of 316L stainless steel nanoparticles was modified by plasma deposition of 1,7-octadiene and perfluorooctane, producing relatively hydrophobic coatings having water contact angles of 86 and 100°, respectively. Both coatings had high oil removal efficiency (ORE) of >99%. The captured oil could be easily separated by applying an external magnetic force. The ease of material preparation and separation from the water after the oil is captured, and its high ORE is a compelling argument for further development and optimization of the technology to possible utilization into practice. Furthermore, the capacity of plasma polymerization to deliver desired surface properties can extend the application of the technology to removing other chemical and biological contaminants from polluted waters.
水体石油污染是全球最严重的环境问题之一。石油在环境中的半衰期长且持久，具有特别的毒性和难以修复的特点。因此，非常需要引入高效且具有成本效益的采油技术。在本研究中，我们开发了一种简便高效的磁分离方法。通过等离子体沉积 1,7-辛二烯和全氟辛烷，对 316L 不锈钢纳米粒子的表面进行修饰，得到具有相对疏水性的涂层，其水接触角分别为 86°和 100°。两种涂层的除油效率（ORE）均大于 99%。通过施加外部磁场，可轻松分离捕获的油污。该材料易于制备，且在捕获油污后易于与水分离，同时具有高 ORE，这有力地证明了该技术具有进一步开发和优化并可能实际应用的价值。此外，等离子聚合赋予表面所需性能的能力可将该技术的应用扩展到从受污染的水中去除其他化学和生物污染物。
