Organic-metal framework catalyst for catalytic degradation of antibiotics and preparation method of organic-metal framework catalyst

A metal skeleton, catalytic degradation technology, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve low-concentration wastewater treatment difficulties, secondary pollution, reaction Slow and other problems, to achieve the effect of effective and rapid degradation, high reuse rate and low cost

Pending Publication Date: 2020-11-27
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional treatment processes generally have disadvantages such as high cost, slow reaction, easy to cause secondary pollution, and difficult to treat low-concentration wastewater. Among them, photocatalytic degradation technology has the advantages of easy operation, low cost, high efficiency, and no secondary pollution. Potential for degrading pollutants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing an organic-metal framework catalyst for catalytic degradation of antibiotics, comprising the steps of:

[0024] (1) Mix the ethylene glycol solution of copper chloride dihydrate and the N,N-dimethylformamide solution of terephthalic acid, stir for 1 hour, crystallize, and centrifuge to obtain the precipitate produced by the reaction;

[0025] (2) Washing and drying the precipitate to obtain the organo-metal framework catalyst.

[0026] In the step (1), the molar ratio of copper chloride dihydrate, terephthalic acid and N,N-dimethylformamide is 1:0.8:150.

[0027] In the step (1), the volume ratio of ethylene glycol to N,N-dimethylformamide is 1:1.2.

[0028] The crystallization in the step (1) includes the first stage of crystallization and the second stage of crystallization successively. The first stage of crystallization: the temperature is 85°C, and the crystallization time is 5h; the second stage of crystallization: the temperature is 160°C...

Embodiment 2

[0032] A method for preparing an organic-metal framework catalyst for catalytic degradation of antibiotics, comprising the steps of:

[0033] (1) Mix the ethylene glycol solution of copper chloride dihydrate and the N,N-dimethylformamide solution of terephthalic acid, stir for 1.5 hours, crystallize, and centrifuge to obtain the precipitate produced by the reaction;

[0034] (2) Washing and drying the precipitate to obtain the organo-metal framework catalyst.

[0035] In the step (1), the molar ratio of copper chloride dihydrate, terephthalic acid and N,N-dimethylformamide is 1:0.85:200.

[0036] In the step (1), the volume ratio of ethylene glycol to N,N-dimethylformamide is 1:1.35.

[0037] The crystallization in the step (1) includes the first stage of crystallization and the second stage of crystallization successively. The first stage of crystallization: the temperature is 95°C, and the crystallization time is 6.5h; the second stage of crystallization: the temperature T...

Embodiment 3

[0041] A method for preparing an organic-metal framework catalyst for catalytic degradation of antibiotics, comprising the steps of:

[0042] (1) Mix the ethylene glycol solution of copper chloride dihydrate and the N,N-dimethylformamide solution of terephthalic acid, stir for 1.5 hours, crystallize, and centrifuge to obtain the precipitate produced by the reaction;

[0043] (2) Washing and drying the precipitate to obtain the organo-metal framework catalyst.

[0044] In the step (1), the molar ratio of copper chloride dihydrate, terephthalic acid and N,N-dimethylformamide is 1:0.9:250.

[0045] In the step (1), the volume ratio of ethylene glycol to N,N-dimethylformamide is 1:1.5.

[0046] The crystallization in the step (1) includes the first stage of crystallization and the second stage of crystallization successively, the first stage of crystallization: the temperature is 105°C, and the crystallization time is 8h; the second stage of crystallization: the temperature is 1...

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PUM

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Abstract

The invention relates to an organic-metal framework catalyst for catalytic degradation of antibiotics and a preparation method of the organic-metal framework catalyst. The preparation method of the organic-metal framework catalyst comprises the following steps: (1) mixing an ethylene glycol solution of copper chloride dihydrate and an N,N-dimethylformamide solution of terephthalic acid, carrying out stirring for 1-2 hours, and performing crystallizing to obtain a precipitate produced by a reaction; and (2) washing the precipitate, and drying the precipitate to obtain the organic-metal framework catalyst. According to the organic-metal framework catalyst for catalytic degradation of antibiotics and the preparation method of the organic-metal framework catalyst in the invention, organic pollutants are subjected to photocatalytic degradation by utilizing the organic-metal framework catalyst, so effective removal of organic pollutants can be realized; and the catalyst has the advantages ofconvenient operation, low cost, simple treatment process, good removal effect and high repeated utilization rate, realizes effective and rapid degradation of the organic pollutants and has good application prospects in actual treatment of antibiotic wastewater.

Description

technical field [0001] The invention relates to an organic-metal skeleton catalyst, in particular to an organic-metal skeleton catalyst for catalytic degradation of antibiotics and a preparation method thereof. Background technique [0002] The curtain of the fourth industrial revolution represented by technological breakthroughs such as mobile Internet, artificial intelligence, 3D printing, biotechnology, new energy and quantum computing has begun. The development of industry drives the rapid development of science and technology and economy, while the revolution of resources and technology An increasing number of chemicals are also produced, but many of these products have been shown to be potentially hazardous to the environment and organisms. There are many non-naturally degradable wastes and organic pollutants produced by humans in industrial and agricultural activities, such as dyes, pharmaceutical wastewater residues, pesticides, pharmaceuticals, and personal care pro...

Claims

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Application Information

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IPC IPC(8): B01J31/22C02F1/30C02F101/38
CPCB01J31/223B01J31/1805C02F1/30B01J2531/16C02F2101/38C02F2305/10
Inventor 李强夏东升潘飞孙磊曹刚叶宇轩
Owner WUHAN TEXTILE UNIV
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