School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
Molecules. 2023 Apr 12;28(8):3396. doi: 10.3390/molecules28083396.
Due to the increasingly serious problem of offshore oil spills, research related to oil-water separation has attracted more and more attention. Here, we prepared a super-hydrophilic/underwater super-oleophobic membrane (hereinafter referred to as BTA) using poly-dopamine (PDA) to adhesive TiO nanoparticles on the surface of bacterial cellulose, coated with sodium alienate by vacuum-assisted filtration technique. This demonstrates its excellent underwater super-oleophobic property. Its contact angle is about 153°. Remarkably, BTA has 99% separation efficiency. More importantly, BTA still showed excellent anti-pollution property under ultraviolet light after 20 cycles. BTA has the advantages of low cost, environmentally friendliness and good anti-fouling performance. We believe it can play an important role in dealing with problems related to oily wastewater.
由于海上溢油问题日益严重，与油水分离相关的研究越来越受到关注。在这里，我们使用聚多巴胺（PDA）将 TiO2 纳米粒子粘在细菌纤维素表面，制备了超亲水/水下超疏油膜（以下简称 BTA），然后通过真空辅助过滤技术涂覆了偏硅酸钠。这证明了它具有优异的水下超疏油性。其接触角约为 153°。值得注意的是，BTA 的分离效率达到了 99%。更重要的是，BTA 在经过 20 次循环后，在紫外光下仍表现出优异的抗污染性能。BTA 具有成本低、环保和良好的抗污性能等优点。我们相信它可以在处理含油废水相关问题方面发挥重要作用。
