Method and equipment for stripping layered material nanosheet

Abstract

The invention belongs to the technical field of nano materials, and particularly relates to a method and equipment for stripping a layered material nanosheet, and the method comprises the following steps: S1, taking out a layered crystal material, mixing the layered crystal material with a liquid phase medium, putting the mixture into wet grinding equipment for wet grinding, and obtaining a wet grinding mixture after wet grinding; S2, placing a wet grinding mixture obtained after wet grinding in the step S1 in vibration equipment to be vibrated, and achieving sufficient mixing; and S3, addingthe wet grinding mixture obtained by fully mixing in the step S2 and an organic solvent into high-pressure heating equipment, and performing stripping to obtain a suspension solution formed by the nanosheet and the organic solvent and unstripped crystal powder. According to the invention, the wet grinding mixture can be fully mixed, the stripping efficiency can be improved, the stripping time is short, the yield is high, ultrasonic-assisted stripping is not needed, nanosheet size reduction and nanosheet structure defects are avoided, high universality is achieved, the method and the equipmentfor stripping a layered material nanosheet are suitable for large-scale production, the total production efficiency is effectively improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a method and equipment for stripping layered material nanosheets. Background technique [0002] Two-dimensional nanosheets refer to sheet-like nanomaterials with a lateral dimension of hundreds of nanometers to several micrometers and a thickness of only a few or even a single atomic layer. Since Novoselov and Geim et al. glued graphene from graphite with transparent glue in 2004, two-dimensional materials have large specific surface area and many nano-effects due to their atomic-level thickness and large horizontal / longitudinal size ratio. Excellent electrical, optical, magnetic, and mechanical properties have broad application prospects in the fields of catalysis, energy, sensing, and electronics, and provide rich research topics for basic science fields such as physics. How to exfoliate two-dimensional nanosheets from their layered material precursors to obtain high-qua...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a method and equipment for stripping layered material nanosheets, which solves the problem that the existing layered material stripping method does not have strong universality, takes a long time and has low yield. Large size, structural defects, and difficulty in mass production

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