▎ 摘　　要

NOVELTY - Preparing reducing graphene oxide-titanium dioxide material with plate-barrier structure based on two-dimensional metal carbide titanium carbide (Ti3C2) comprises e.g. mixing graphene oxide (1000 meshes), mixing and dispersing in de-ionized water, ultrasonically dispersing in high power ultrasonic generator to obtain uniform reaction precursor dispersion, adding sodium fluoborate as reaction control agent, and ultrasonically dispersing, further mixing uniformly, transferring mixed solution to polytetrafluoroethylene reaction kettle, reacting in homogeneous reactor, naturally cooling to room temperature, washing solid product in de-ionized water, dispersing, dissolving the remaining sodium fluoborite, freezing and drying solid at to obtain the reduction-oxidation graphene-titanium dioxide composite material with plate-barrier structure. USE - The graphene oxide-titanium dioxide material with plate-barrier structure based on two-dimensional metal carbide titanium carbide is useful for preparing polymer-based composite dielectric material (claimed). ADVANTAGE - The method: adopts titanium source to prepare a highly dispersible titanium dioxide structure, and prepares dielectric film, which has excellent dielectric energy storage performance. DETAILED DESCRIPTION - Preparing reducing graphene oxide-titanium dioxide material with plate-barrier structure based on two-dimensional metal carbide titanium carbide (Ti3C2) comprises (i) mixing 5 pts. wt. graphene oxide (1000 meshes), 4 pts. wt. few layers of MXene nano sheet (sheet diameter less than 5 microm), mixing and dispersing in 40 ml de-ionized water, ultrasonically dispersing for 30 minutes in the high power ultrasonic generator to obtain uniform reaction precursor dispersion; (ii) adding sodium fluoborate as reaction control agent in the step (i), making the concentration reach 0.1 mol/l, and ultrasonically dispersing for 30 minutes, further mixing uniformly; (iii) transferring the mixed solution of the step (ii) to the polytetrafluoroethylene reaction kettle of 100 ml capacity, confirming the complete sealing, reacting for 8 hours in a homogeneous reactor at a high temperature environment of 160degrees Celsius, after the reaction, naturally cooling to room temperature; (iv) washing the solid product by de-ionized water, dispersing, dissolving the remaining sodium fluoborite, where the filtering method is used for completely cleaning and collecting the filtering material; and (v) freezing and drying the solid at -60degrees Celsius for 36 hours to obtain the reduction-oxidation graphene-titanium dioxide composite material with plate-barrier structure.