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Asymmetric composite film based on ordered mesoporous carbon, super-assembly preparation method and application thereof

A mesoporous carbon and composite membrane technology, applied in the field of porous materials, can solve problems such as difficult to prepare pore structures, and achieve the effect of easy-to-obtain raw materials and simple methods

Inactive Publication Date: 2020-10-02
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is difficult to prepare ordered pore structures for the materials used to construct nanochannels.

Method used

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  • Asymmetric composite film based on ordered mesoporous carbon, super-assembly preparation method and application thereof
  • Asymmetric composite film based on ordered mesoporous carbon, super-assembly preparation method and application thereof
  • Asymmetric composite film based on ordered mesoporous carbon, super-assembly preparation method and application thereof

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Embodiment 1

[0037] This example describes in detail the asymmetric composite membrane based on ordered mesoporous carbon, its preparation method and application.

[0038] In this example, an asymmetric composite membrane based on ordered mesoporous carbon was prepared by superassembly method.

[0039] Step 1, dissolve 1.0g of F127 in 20.0g of ethanol, sonicate it until clarified to obtain a template solution; then add 5.0g of resol ethanol solution containing 0.61g of phenol and 0.39g of formaldehyde, and stir for 10 minutes to obtain Uniform clear and transparent mesoporous carbon precursor solution.

[0040] In step 2, at a speed of 3300 r / min, the above-mentioned mesoporous carbon precursor solution is coated on the AAO substrate with plugged pores by spin coating to obtain a composite membrane.

[0041] Step 3: Evaporate the above composite film in an oven at 40°C to induce self-assembly for 12 hours, and then raise the temperature of the oven to 100°C for thermal polymerization;

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Abstract

The invention belongs to the technical field of porous materials and specifically relates to an asymmetric composite film based on ordered mesoporous carbon, a super-assembly preparation method and application thereof. The preparation method comprises the following steps of: preparing a mesoporous carbon precursor solution from a template agent and resol; using an anodic aluminum oxide film with blocked holes as a substrate; then spin-coating the prepared mesoporous carbon precursor solution on the anodic aluminum film with the blocked holes to coat a mesoporous carbon film on the anodic aluminum oxide film to obtain a composite film with a two-layer structure, and growing the mesoporous carbon film on the surface of an AAO substrate by using an interface super-assembly method through evaporation induced self-assembly (EISA), thermal polymerization and calcination in an inert atmosphere to obtain the asymmetric composite film based on ordered mesoporous carbon. The composite film has aregular channel structure, provides rich channels for ion transport, has good cation selectivity and permeability, and can capture osmotic energy and convert the osmotic energy into electric energy.The method is simple, raw materials are easily available, and the method is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of porous materials, and in particular relates to an asymmetric composite membrane based on ordered mesoporous carbon, a superassembly preparation method and an application thereof. Background technique [0002] Since the 20th century, nanochannels have entered the scientific community and have attracted widespread attention from scientists. Nanochannels / nanopores can be simply divided into biological and solid-state ones, while composites refer to composites of porous or mesoporous inorganic materials and nanopores / channels, composites of block copolymers and nanochannels, etc. Ordered mesoporous carbon, as a new type of non-silicon-based mesoporous material developed rapidly in recent years, has a large specific surface area and high pore volume, and is widely used in hydrogen storage, adsorption, catalysis, separation, electrochemistry and sensors. All have great potential application prospects. However...

Claims

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Application Information

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IPC IPC(8): B01D67/00B01D69/12B01D71/02B01D71/44H02N3/00
CPCB01D67/0079B01D69/12B01D71/025B01D71/44H02N3/00
Inventor 孔彪彭德宁谢磊曾洁刘占杰陈海涛
Owner FUDAN UNIV
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