Magnetic vermiculite nanosheet prepared by one-step method and method thereof
A highly efficient and green one-step method for preparing vermiculite nanosheets was achieved by combining liquid-phase sand milling exfoliation with in-situ oxidation using oxidizing gas. This method solves the problem of the disconnect between exfoliation and functionalization in existing technologies, and yields high-quality magnetic vermiculite nanosheets suitable for composite materials, adsorption catalysis, and energy storage.
CN122276772APending Publication Date: 2026-06-26INST OF LASER MFG HENAN ACAD OF SCI +1
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Patent Information
- Application Number
- CN202610362202.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-24
- Publication Date
- 2026-06-26
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Figure CN122276772A_ABST
Abstract
This invention discloses a one-step method for preparing magnetic vermiculite nanosheets, belonging to the field of vermiculite nanosheet preparation technology. The method includes the following steps: pretreating natural raw vermiculite powder to obtain pretreated vermiculite powder; dispersing the pretreated vermiculite powder in a liquid medium to obtain a reaction slurry; grinding the reaction slurry while simultaneously introducing oxidizing gas for in-situ oxidation and magnetic attenuation to obtain a post-reaction slurry; and post-processing the post-reaction slurry to obtain magnetic vermiculite nanosheets. This method achieves a one-step direct process from raw materials to a functional end product, significantly shortening the process flow, avoiding multiple separations, washing, and drying steps, significantly improving production efficiency, and greatly reducing energy and material consumption. It solves the technical problem that existing methods cannot achieve one-step preparation of magnetic vermiculite nanosheets.
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