Metal organic skeleton derivative material-three-dimensional network carbon-based composite photocatalyst, preparation method thereof and use thereof

A metal-organic framework and three-dimensional network technology, which is applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of poor practicability, poor photocatalytic effect, Recycling is difficult and other problems, to achieve the effect of strong practicability, good stability of the preparation process, and avoid secondary pollution

Active Publication Date: 2018-10-23
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a metal-organic framework-derived material-three-dimensional network carbon-based composite photocatalyst and its preparation method and application, so as to solve the problem of poor photocatalytic effect of MOFs-derived semiconductor materials and difficulties in recycling after use in the prior art , poor practicality and other issues

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  • Metal organic skeleton derivative material-three-dimensional network carbon-based composite photocatalyst, preparation method thereof and use thereof
  • Metal organic skeleton derivative material-three-dimensional network carbon-based composite photocatalyst, preparation method thereof and use thereof
  • Metal organic skeleton derivative material-three-dimensional network carbon-based composite photocatalyst, preparation method thereof and use thereof

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Embodiment 1

[0049] This embodiment provides a metal-organic framework-derived material-three-dimensional network carbon-based composite photocatalyst, and its preparation method includes the following steps:

[0050] Prepare a sponge material coated with a linking agent: immerse the melamine sponge in a linking agent solution, so that the melamine sponge is covered with a linking agent; wherein, the linking agent is a 2 g / L graphene oxide solution;

[0051] Preparation of sponge material loaded with metal-organic framework: ultrasonically disperse the dried ZIF-8 metal-organic framework in water to form a uniform metal-organic framework solution with a concentration of 1 g / L; prepare the prepared sponge material coated with the linking agent Dried and immersed in a ZIF-8 metal-organic framework solution, so that the ZIF-8 metal-organic framework is supported on the surface of graphene oxide; wherein, the ZIF-8 metal-organic framework can be obtained by the preparation method of the prior a...

Embodiment 2

[0056] This embodiment provides a metal-organic framework-derived material-three-dimensional network carbon-based composite photocatalyst, and its preparation method includes the following steps:

[0057] Prepare a sponge material coated with a linking agent: immerse a melamine sponge in a linking agent solution, so that the melamine sponge is covered with a linking agent; wherein, the linking agent is a polyacrylic acid solution;

[0058] Preparation of sponge material loaded with metal-organic framework: ultrasonically disperse the dried ZIF-67 metal-organic framework in water to form a uniform metal-organic framework solution with a concentration of 1 g / L; prepare the sponge material coated with the linking agent After drying, immerse in the ZIF-67 metal organic framework solution, so that the ZIF-67 metal organic framework is loaded on the surface of polyacrylic acid; wherein, the ZIF-67 metal organic framework can be obtained by the preparation method of the prior art;

...

Embodiment 3

[0061] This embodiment provides a metal-organic framework-derived material-three-dimensional network carbon-based composite photocatalyst, and its preparation method includes the following steps:

[0062] Prepare a sponge material coated with a linker: immerse the melamine sponge in a linker solution, so that the melamine sponge is covered with a linker; wherein the linker is a sodium alginate solution;

[0063] Preparation of sponge material loaded with metal-organic framework: ultrasonically disperse the dry MIL-88B metal-organic framework in water to form a uniform metal-organic framework solution with a concentration of 1g / L; the prepared sponge material coated with the linking agent After drying, immerse in the MIL-88B metal organic framework solution, so that the MIL-88B metal organic framework is loaded on the surface of sodium alginate; wherein, the MIL-88B metal organic framework can be obtained by the preparation method of the prior art;

[0064] Pyrolysis: The prepa...

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Abstract

The invention relates to the technical field of new materials, and in particular relates to a metal organic skeleton derivative material-three-dimensional network carbon-based composite photocatalyst,a preparation method thereof and use thereof. The preparation method comprises: preparing a sponge material coated with a bonding agent: immersing the sponge in a bonding agent solution to coat the sponge with the bonding agent, wherein the bonding agent is selected from the group consisting of graphene oxide, polyurethane, polyacrylic acid, polyetherimide, polyethylene glycol, polyvinylpyrrolidone or sodium alginate; preparing a sponge material loaded with a metal organic skeleton: drying the sponge material coated with the bonding agent, immersing the sponge material coated with the bondingagent in a metal organic skeleton solution to allow the metal organic skeleton to be loaded to the bonding agent; and pyrolyzing the sponge material loaded with the metal organic skeleton to obtain the metal organic skeleton derivative material-three-dimensional network carbon-based composite photocatalyst. The metal organic skeleton derivative material-three-dimensional network carbon-based composite photocatalyst can effectively decompose organic pollutants and photohydrolysis water to produce hydrogen, and has the characteristics of controllable volume, convenient recycling and no secondary pollution.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a metal-organic framework derived material-three-dimensional network carbon-based composite photocatalyst and its preparation method and application. Background technique [0002] Metal-Organic Frameworks (MOFs) is a novel organic-inorganic hybrid mesoporous crystal material, which is a skeleton structure formed by metal ions or multinuclear clusters through organic coordination. Due to the characteristics of large specific surface area, porosity and adjustable functional groups, MOFs materials have various structures and properties, which make this material have great application value in the fields of catalytic reaction, energy storage and sensing. The semiconductor catalyst material derived from MOFs can maintain the structure and morphological characteristics of the original MOFs material template, and has great application prospects in the fields of photocatalytic trea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/06B01J23/745B01J23/75B01J21/18C01B3/04C02F1/30C02F101/38
CPCB01J21/18B01J23/06B01J23/745B01J23/75B01J35/004C01B3/042C01B2203/0277C01B2203/1052C01B2203/1076C02F1/30C02F2101/38C02F2305/10Y02E60/36
Inventor 张作泰刘薇李顺
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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