Preparation method of amino-functionalization MOFs (Metal-Organic Frameworks) for eliminating indoor formaldehyde

A technology of amino-functionalization and formaldehyde, which is applied in the field of preparation of amino-functionalized MOFs, can solve the problems of insufficient elimination of formaldehyde and achieve the effects of strong visible light absorption, elimination of formaldehyde, and strong light absorption

Inactive Publication Date: 2019-09-20
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing amino-functionalized MOFs for eliminating indoor formaldehyde, and to design a metal-organic framework LaFeO3 / UIO with strong visible light absorption ability and high catalytic activity through the combination of hydrothermal synthesis and self-assembly -66-NH2 composite photocatalyst, which solves the problem of insufficient formaldehyde elimination effect of existing photocatalysts

Method used

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Embodiment 1

[0020] The present invention is the preparation method of the amino-functionalized MOFs that is used for eliminating indoor formaldehyde, comprises the following steps:

[0021] Preparation of SS01LaFeO3: Take out ferric nitrate and lanthanum nitrate with a molar ratio of 1:1, dissolve them in deionized water, put the mixed solution in a hydrothermal reaction kettle for hydrothermal reaction, cool down after the hydrothermal treatment is completed, take out and separate the precipitate , get LaFeO3;

[0022] SS02 modification: modify the surface of LaFeO3 obtained in SS01 by thioglycolic acid;

[0023] SS03 to build a composite photocatalyst: place the SS02 modified material in the N,N-dimethylformamide solution of ZrCl4 and 2-aminoterephthalic acid in sequence, and realize UIO on the surface of LaFeO3 in a reactor at 100-200 °C -66-NH2 self-assembly, thus constructing LaFeO3 / UIO-66-NH2 composite photocatalyst.

[0024] Wherein, the temperature in the hydrothermal reactor in...

Embodiment 2

[0028] The present invention is the preparation method of the amino-functionalized MOFs that is used for eliminating indoor formaldehyde, comprises the following steps:

[0029] Preparation of SS01LaFeO3: Take out ferric nitrate and lanthanum nitrate with a molar ratio of 1:1, dissolve them in deionized water, put the mixed solution in a hydrothermal reaction kettle for hydrothermal reaction, cool down after the hydrothermal treatment is completed, take out and separate the precipitate , get LaFeO3;

[0030] SS02 modification: modify the surface of LaFeO3 obtained in SS01 by thioglycolic acid;

[0031] SS03 to build a composite photocatalyst: place the SS02 modified material in the N,N-dimethylformamide solution of ZrCl4 and 2-aminoterephthalic acid in sequence, and realize UIO on the surface of LaFeO3 in a reactor at 100-200 °C -66-NH2 self-assembly, thus constructing LaFeO3 / UIO-66-NH2 composite photocatalyst.

[0032] Wherein, the temperature in the hydrothermal reactor in...

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Abstract

The invention discloses a preparation method of amino-functionalization MOFs (Metal-Organic Frameworks) for eliminating indoor formaldehyde, relating to the technical field of indoor formaldehyde treatment. The method comprises the following steps: SS01, taking out iron nitrate and lanthanum nitrate at a molar ratio of 1 to 1, dissolving in deionized water and preparing LaFeO3 by using a hydrothermal synthesis method; SS02, modifying the surface of LaFeO3 in the SS01 through mercaptoacetic acid; and SS03, enabling a material modified in the SS02 to be successively placed in the N,N-dimethyl formamide solutions of ZrCl4 and2-aminoterephthalic acid, realizing the self-assembly of UIO-66-NH2 on the surface of LaFeO3 in a reaction kettle at 100-200 DEG C and constructing an LaFeO3 / UIO-66-NH2 composite photocatalyst accordingly. By the technical design of combination of the hydrothermal synthesis method and a self-assembly method, the absorbing capacity of visible light is strong, and the LaFeO3 / UIO-66-NH2 composite photocatalyst with a metal-organic framework having high catalytic activity can effectively eliminate indoor formaldehyde, thereby solving the problem that the formaldehyde-removing effect of existing photocatalysts is not insufficient.

Description

technical field [0001] The invention belongs to the technical field of indoor formaldehyde treatment, in particular to a preparation method of amino-functionalized MOFs for eliminating indoor formaldehyde. Background technique [0002] Photocatalysts are the key to determining the efficiency of photocatalytic reactions. TiO2, g-C3N4, Ag3PO4, CdS and metal-organic frameworks (MOFs) have been developed. Among them, metal-organic frameworks (MOFs) consist of rigid organic ligands A new type of porous material with an infinite network structure formed by bridging with metal ions or metal clusters through coordination bonds. [0003] Because the raw materials of metal-organic frameworks (MOFs) are simple and easy to obtain, they have the advantages of high porosity, high specific surface area, adjustable shape and size, rich structures, simple and diverse synthesis strategies, and various chemical modifications according to experimental needs. MOFs are widely used in the fields ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/28B01D53/72B01D53/86
CPCB01D53/8668B01J31/2239B01J31/28B01J35/004B01J2531/48
Inventor 李帅陈晓娟陈杰明利东刘丽范宇涵刘显华
Owner FOSHAN UNIVERSITY
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