Miao Gan, Li Fangchao, Gao Zhongshuai, Xu Ting, Miao Xiao, Ren Guina, Song Yuanming, Li Xiangming, Zhu Xiaotao
School of Environmental and Material Engineering, Yantai University, Yantai 264405, China.
Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252000, China.
iScience. 2022 Apr 6;25(5):104213. doi: 10.1016/j.isci.2022.104213. eCollection 2022 May 20.
Engineering a versatile platform that enables to separate both oil/water and oil/oil mixtures and remove dye from water is not easy. To address this challenge, we have developed an Ag/polydopamine-coated textile (Ag/PDA@textile) by chemically depositing Ag particles on the textile surface using polydopamine as the binder layer. The obtained Ag/PDA@textile attracts water but repels oil in the air, underwater, and when immersed into the oil. Exploiting its water-attracting and oil resistance, the Ag/PDA@textile is acted as a separation membrane to separate oil/water mixtures with enhanced separation efficiency. The Ag/PDA@textile also possesses opposite wetting behavior to oils with different polarities, allowing it to separate oil/oil mixtures efficiently. Thanks to the catalytic performance of the Ag particle, organic dyes can be decomposed effectively by our Ag/PDA@textile under UV illustration or in the presence of NaBH. Our Ag/PDA@textile may be valuable for applications in water purification and oil sewage treatment.
设计一个多功能平台，使其能够分离油/水和油/油混合物并去除水中的染料并非易事。为应对这一挑战，我们通过使用聚多巴胺作为粘结层在织物表面化学沉积银颗粒，开发出了一种银/聚多巴胺包覆的织物（Ag/PDA@织物）。所获得的Ag/PDA@织物在空气中、水下以及浸入油中时都具有亲水性但拒油。利用其亲水性和耐油性，Ag/PDA@织物作为分离膜可提高油/水混合物的分离效率。Ag/PDA@织物对不同极性的油还具有相反的润湿性，使其能够高效分离油/油混合物。由于银颗粒的催化性能，我们的Ag/PDA@织物在紫外线照射下或在硼氢化钠存在的情况下能够有效分解有机染料。我们的Ag/PDA@织物在水净化和含油污水处理应用中可能具有重要价值。
