Preparation of hydrophilic oleophobic graphene oxide film

• Main Authors: ZHANG FULEI, BAI LICHAO, LI CHENG, QI QIAN, CHEN PUPIAO, QIAN HUIXIAN, SHEN JIE, LI DONGYAN
• Format: Patent
• Language: Chinese; English
• Published: 18.06.2021
• Subjects: CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses preparation of an oil-water separation hydrophobic membrane. The preparation method comprises the following steps: inserting ZnO nanowires between graphene oxide GO nanosheet layers, taking a PVDF micro-filtration membrane as a substrate layer, and carrying out suction filtration on a GO/ZnO nanowire mixed solution on a membrane surface by utilizing a vacuum suction filtration device. The doped ZnO nanowires are interspersed among the GO nanosheets, so that the internal structure and the surface property of the GO thin film are changed, and the performance of the film is improved. The ZnO/GO thin film shows good permeability and has efficient oil-water separation performance. 本发明公开了一种油水分离疏水膜的制备。在氧化石墨烯GO纳米片层间插入 ZnO 纳米线，以PVDF微滤膜为基底层，利用真空抽滤装置，将GO/ZnO纳米线混合液抽滤在膜面。掺杂的ZnO 纳米线穿插在 GO 纳米片层间，改变了GO薄膜的内部结构和表面性质，从而改善了膜性能。ZnO/GO 薄膜表现出良好的渗透性能，具有高效的油水分离性能。