A wettability-controlled conductive composite film, its preparation method, and a film treatment device.

Abstract

This invention discloses a method for preparing a wettability-controlled conductive composite membrane, belonging to the technical field of water treatment equipment. The method includes: preparing an oxidant solution; adding a nitrogen-containing heterocyclic compound to the oxidant solution under ice bath conditions to obtain a conductive solution; immersing a substrate support layer in the conductive solution to obtain a conductive polymer layer; preparing a hydrophilic modification solution by mixing dopamine hydrochloride and sodium alginate; immersing the conductive polymer layer in the hydrophilic modification solution, and statically impregnating it at room temperature to form a conductive composite membrane. This conductive composite membrane exhibits strong detergency, effectively inhibiting membrane fouling, including complex composite fouling, and also shows slow flux decay, simple and effective cleaning methods, and a high membrane flux recovery rate.

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