Preparation method of polyelectrolyte membrane based on silicon oxide nanowire and efficient adsorption of heavy metal ions

Abstract

The application discloses a kind of based on silicon oxide nanowire polyelectrolyte membrane preparation method and high-efficiency adsorption to heavy metal ions, and its technical scheme main points are: a kind of polyelectrolyte membrane preparation method based on silicon oxide nanowire SiO2 NWs, and polyelectrolyte composite membrane can effectively adsorb heavy metal ions.The application is successfully synthesized by using layer-by-layer assembly method (LBL) by suction filtration device, three-dimensional self-supporting membrane with high efficiency, large capacity and controllable morphology.The specific steps include preparation of SiO2 NWs, amination of SiO2 NWs, and suction filtration to form SiO2 NWs membrane combined layer-by-layer self-assembly technology to finally prepare three-dimensional self-supporting polyelectrolyte composite membrane.The application has simple process, safe operation, and certain practical application prospect.The porosity of polyelectrolyte membrane is high, and it has good heavy metal adsorption and desorption capacity, so it is an ideal membrane adsorption material.

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