Method for accurately regulating and controlling wettability of double-layer two-dimensional material based on interlayer spacing

A technology of two-dimensional materials and layer spacing, which is applied in general water supply saving, nanotechnology CAD, instruments, etc., can solve the problems of high cost, poor applicability, difficult operation, etc., and achieve the effect of avoiding high cost and improving efficiency

Active Publication Date: 2022-07-12
DALIAN UNIV OF TECH
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Problems solved by technology

However, the structure of the material required for the controllable wettability surface is complex, and the wettability of the m...

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  • Method for accurately regulating and controlling wettability of double-layer two-dimensional material based on interlayer spacing
  • Method for accurately regulating and controlling wettability of double-layer two-dimensional material based on interlayer spacing
  • Method for accurately regulating and controlling wettability of double-layer two-dimensional material based on interlayer spacing

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Embodiment Construction

[0026] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and technical solutions.

[0027] The present invention selects the coupling system of double-layer graphene and water as the numerical model, such as figure 1 shown.

[0028] Two infinitely long single-layer graphene materials are selected to form a solid material with a double-layer structure, and its texture is uniform and continuous, and the areal density of the upper solid material is and the areal density of the underlying solid material equal, using ρ S Unified representation, ρ can be calculated from the hexagonal unit cell molecular structure of graphene S The value of is The two graphene materials are kept parallel to each other, and the distance is d. Define the infinite water above and parallel to the surface of the upper solid material as a liquid with a uniform and continuous texture and a bulk density ρ L , the ρ of water ...

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Abstract

The invention discloses a method for accurately regulating and controlling wettability of a double-layer two-dimensional material based on interlayer spacing, and belongs to the technical field of calculation of two-dimensional nano materials. Firstly, a numerical model of double-layer two-dimensional material wetting is established; secondly, establishing a wettability characterization theory based on the numerical model; the adhesion energy Wa between solid and liquid in a wetting system is calculated and substituted into a wetting theoretical formula, so that an expression of a contact angle of a wetting theoretical numerical model is established. And finally, through the steps, establishing an explicit relational expression of the contact angle theta and the interlayer spacing d for representing wettability. According to the method, the wettability can be accurately regulated and controlled based on the interlayer spacing of the two-dimensional material, the established theoretical model can accurately, quickly and effectively calculate the contact angle of the liquid on the surface of the corresponding material, the efficiency is greatly improved, a new strategy is provided for constructing the wettability-controllable material surface, and the method is suitable for popularization and application. And the problems of high cost, difficulty in operation, poor applicability and the like caused by experiments are avoided.

Description

technical field [0001] The invention belongs to the technical field of computational two-dimensional nanomaterials, and relates to a method for precisely regulating the wettability of a double-layer two-dimensional material based on the interlayer spacing. [0002] technical background [0003] Materials with variable surface wettability have attracted the attention of scholars in the field of materials science and engineering. It has broad development prospects in the fields of medicine, electronics, and ocean, such as micro-nanofluidic devices, intelligent membranes for oil-water separation, and biotechnology. At the same time, nano two-dimensional materials, such as graphene, molybdenum disulfide, etc., with their special atomic structure and excellent physical properties, have shown a crucial role in the research of many world frontier problems such as superconductivity, seawater desalination and sewage treatment. important role. Therefore, the design and preparation of...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F119/14G06F111/10G06F111/14
CPCG06F30/20G06F2119/14G06F2111/10G06F2111/14Y02A20/131
Inventor 叶宏飞尹晨光李东宋畅
Owner DALIAN UNIV OF TECH
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