Preparation and catalytic performance of multi-acid-group cobalt organic framework with double interpenetrating structure

A technology of organic framework and interpenetrating structure, which is applied in the direction of organic compound/hydride/coordination complex catalyst, catalyst activation/preparation, physical/chemical process catalyst, etc. It can solve the problems of poor stability and high solubility, and achieve catalytic Effects of activity, inhibition of complexation, and structural stabilization

Active Publication Date: 2022-07-29
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor stability and high solubility of polyacid polymers in solution as catalytic materials

Method used

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  • Preparation and catalytic performance of multi-acid-group cobalt organic framework with double interpenetrating structure
  • Preparation and catalytic performance of multi-acid-group cobalt organic framework with double interpenetrating structure
  • Preparation and catalytic performance of multi-acid-group cobalt organic framework with double interpenetrating structure

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specific Embodiment approach 1

[0019] Embodiment 1: The preparation method of a polyacid-based metal-organic framework material with a double interpenetrating structure of this embodiment is completed according to the following steps:

[0020] 1. Prepare a reaction solution with a pH value of 2.5 to 3.0: add 0.15g silicotungstic acid, 0.16g cobalt acetate and 0.04g 3,5-bis(triazol-1-yl)pyridine into distilled water and stir evenly, then mix The pH of the suspension is adjusted to 2.5 to 3.0 to obtain a reaction solution with a pH of 2.5 to 3.0;

[0021] 2. Preparation of a polyacid-based metal-organic framework material with a double interpenetrating structure: transfer the reaction solution prepared in step 1 into a polytetrafluoroethylene reactor, and then react at a temperature of 160 ° C for 4 days, the reaction solution After washing at room temperature, green bulk crystals were obtained, that is, a polyacid-based metal-organic framework material with a double interpenetrating structure. The chemical f...

specific Embodiment approach 2

[0024] Embodiment 2: The polyacid-based metal-organic framework material with double interpenetrating structure described in Step 1 of Embodiment 1, the 3,5-bis(triazol-1-yl)pyridine, cobalt acetate, The molar ratio of silicotungstic acid is 1:(3.2-3.5):(0.26-0.5).

specific Embodiment approach 3

[0025] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the metal copper salt described in Step 1 is cobalt chloride, cobalt nitrate or cobalt sulfate. Others are the same as in the first to second embodiments.

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Abstract

The invention relates to preparation and application of a multi-acid-group cobalt metal organic framework with a double interpenetrating structure. The invention aims to solve the problems of poor stability and low catalytic performance of some polyacid materials as catalyst materials in a solution, and provides a preparation method of a colorimetric sensing catalyst material and a photocatalytic degradation material capable of improving the catalytic performance of the polyacid materials. The chemical formula of the polyacid-based metal organic framework material with the double interpenetrating structure is [Co2 (btap) 4 (H2O) 4] [SiW12O40], and btap is 3, 5-bis (triazole-1-yl) pyridine. The synthesis method comprises the following steps: adding silicotungstic acid, cobalt acetate and btap into distilled water, uniformly stirring, adjusting the pH value, and reacting for 4 days at the temperature of 160 DEG C; the cobalt metal organic framework crystal material with the multi-acid-group double interpenetrating structure, which has colorimetric sensing and visible light catalysis performance, can be obtained.

Description

technical field [0001] The invention relates to a preparation method and catalytic performance of a polyacid-based cobalt metal organic framework material with a double interpenetrating structure. Background technique [0002] Phenolic compounds are common water pollutants with high stability, poor biodegradability, and serious toxicity even at very low concentrations, which need to be detected and removed urgently. Among the numerous detection methods for phenolic compounds, colorimetric sensing is a promising method. in H 2 O 2 With the help of catalysts, phenol reacts with colorless 4-aminoantipyrine (4-AAP) to generate colored quinoneimine. Therefore, the phenolic content can be determined by monitoring the quinoneimine by a simple colorimetric assay. Photocatalytic degradation is the use of highly active free radicals generated by radiation and photocatalysts in the reaction system, and then through the addition, substitution, and electron transfer between free radi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00B01J31/22B01J37/10C02F1/30G01N30/02G01N30/06G01N30/74G01N21/78C02F101/34C02F101/36
CPCC08G83/008B01J31/1691B01J31/1815B01J35/004B01J37/10C02F1/30G01N30/02G01N30/06G01N30/74G01N21/78B01J2531/845C02F2305/10C02F2101/345C02F2101/36
Inventor 庞海军辛建娇马慧媛于晓晶
Owner HARBIN UNIV OF SCI & TECH
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