Kang Rae Hyung, Kim Dokyoung
Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Korea.
Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Kyung Hee University, Seoul 02447, Korea.
Materials (Basel). 2021 Oct 2;14(19):5775. doi: 10.3390/ma14195775.
Organic solvents with high purity are essential in various fields such as optical, electronic, pharmaceutical, and chemical areas to prevent low-quality products or undesired side-products. Constructing methods to remove impurities such as water residue in organic solvents has been a significant challenge. Within this article, we report for the first time a new method for the preparation of hydrophobic and oleophilic filter paper (named OCFP), based on thermally induced silane dehydrocoupling between cellulose-based filter paper and octadecylsilane. We comprehensively characterized OCFP using various characterization techniques (FTIR, XPS, XRD, and EDS). OCFP showed super-hydrophobic and oleophilic properties as well as remarkable water separation and removal efficiency (>93%) in various organic solvents with sustained reusability. In addition, the analytical results both before and after filtration of an NMR solvent using OCFP indicated that OCFP has an excellent solvent drying efficiency. This work presents a new strategy for the development of super-hydrophobic cellulose-based filter paper, which has great potential for solvent drying and water separation.
高纯度有机溶剂在光学、电子、制药和化学等各个领域中对于防止产生低质量产品或不期望的副产物至关重要。构建去除有机溶剂中水残留等杂质的方法一直是一项重大挑战。在本文中，我们首次报道了一种基于纤维素基滤纸与十八烷基硅烷之间热诱导硅烷脱氢偶联制备疏水亲油滤纸（命名为OCFP）的新方法。我们使用各种表征技术（FTIR、XPS、XRD和EDS）对OCFP进行了全面表征。OCFP表现出超疏水和亲油性能，并且在各种有机溶剂中具有显著的水分离和去除效率（>93%），且具有持续的可重复使用性。此外，使用OCFP对NMR溶剂过滤前后的分析结果表明，OCFP具有出色的溶剂干燥效率。这项工作为开发超疏水纤维素基滤纸提出了一种新策略，其在溶剂干燥和水分离方面具有巨大潜力。
