Abstract: Disclosed are a light-driven filtration antibacterial composite membrane and a preparation method and use thereof. The method for preparing the light-driven filtration antibacterial composite membrane includes: mixing dichloromethane and N,N-dimethylformamide to obtain a first solution; adding PCL particles to the first solution, and stirring until being uniform to obtain an electrospinning solution; adding a ZIF-8 powder to the electrospinning solution, and ultrasonically dispersing for at least 1 hour to obtain a PCL/ZIF-8 spinning solution; spraying the PCL/ZIF-8 spinning solution onto a PPCL@PDA/TAEG men-blown membrane to obtain the light-driven filtration antibacterial composite membrane.

Abstract: A light-emitting device of a 3D printing lamp, which is disposed in a light bulb for use in 3D printing, includes an adapter, connection unit, carrying unit, transparent cover and power line. The connection unit is disposed on the adapter. The connection unit has a limiting opening. The carrying unit has a connector and thus is rotatably disposed in the limiting opening. The carrying unit has therein a receiving space for receiving at least a light-emitting diode module. The transparent cover is disposed on the carrying unit to hermetically seal the receiving space. The power line is connected to the adapter. The light-emitting device is conveniently mounted on the light bulb to easily form a 3D printing lamp and rotatably adjust the light emission angle and thus appropriately define the shapes of the light bulb for use in 3D printing and patterns thereon, so as to meet user needs.