Permeability-adjustable ultraviolet light response type nano-channel membrane as well as preparation method and application thereof

• Main Authors: JU XIAOJIE, WANG WEI, XIE RUI, CHU LIANGYIN, ZHOU XINGLONG, GONG JUEYING, LIU ZHUANG, ZOU LINBING, PAN DAWEI, ZHOU CHANGHAI
• Format: Patent
• Language: Chinese; English
• Published: 05.03.2024
• Subjects: CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention provides an ultraviolet light response type nano-channel membrane with adjustable permeability. The ultraviolet light response type nano-channel membrane is composed of a membrane base material and an ultraviolet light response functional material grafted on the surface of the membrane base material, the film substrate is provided with nano channels which are uniformly distributed and have uniform pore diameters, and the ultraviolet light response material is composed of a coumarin mother nucleus, a carbon skeleton and a coupling group R; under the irradiation of ultraviolet light with different wavelengths and different irradiation doses, the ultraviolet light response functional material grafted on the surface of the film base material can be subjected to photopolymerization reaction to form a dimer or the photolysis reaction of the dimer, so that the polymerization degree of the ultraviolet light response material is changed; further, the opening degree of the nano-channel of the ultraviolet