- 學位論文
特殊潤濕性材料製備及其在油水分離之應用
Fabrication of Special Wettable Materials for Oil/Water Separation
摘要
人類科技進步，產生工業含油污水污染海洋，以及頻繁溢油事故，傳統的處理油污方法具有吸收速率低、低選擇性、重複使用性低的缺點，因此，高效率油/水分離是值得研究的議題。 Polyvinylpyrrolidone(PVP)具有低毒性、生物相容性、親水性，因此，本實驗使用低毒性PVP/脫脂棉花作為過濾膜，此過濾膜長時間分離油/水並保持穩定的流速，且水中油含量極低，分離效果佳，然而在複雜環境(酸、鹼、高鹽度)水溶液能穩定分離油/水混合液。PVP/脫脂棉花壓縮後進行油/水分離，PVP/脫脂棉花進行油/水乳化液(震盪)分離，分離後水中油包明顯去除，分離效果良好，分離效率>99.9%。壓縮後，PVP/脫脂棉花進行油/水乳化液(界面活性劑)分離，分離後水中油含量極低，分離效率>99.5%。
並列摘要
Recently, the growth of oil production and transportation resulted in the greater potential for accidental oil spills. Thus, oil/water separation has become a worldwide challenge. For this reason, there is a need to invent new materials for the separation of large amounts of organic pollutants in water system. In this work, we describe simple methods for fabricating superhydrophilic and under water superoleophobic polyvinylpyrrolidone (PVP)-coated cotton. The superhydrophilic PVP-coated cotton separated a range of oil/water mixtures effectively with high water flux (>61000 L m-2 h-1) and good oil/water separation efficiency under the drive of gravity. Moreover, after performing a simple compression process, the superhydrophilic PVP-coated cotton could also separates both surfactant-free and surfactant-stabilized oil-in-water emulsions with high separation efficiency (>99.5 %), making it a promising candidate material for use in oil/water separations.