Preparation method and applications of ternary composite material

A composite material, a technology for preparation steps, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, water/sludge/sewage treatment, etc., can solve the problem of large specific surface energy, reduced catalytic activity, Problems such as agglomeration are prone to occur, and the effect of avoiding agglomeration and high catalytic activity can be achieved.

Inactive Publication Date: 2015-02-04
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the catalytic activity of nano-silver, the purpose of its preparation is to obtain monodisperse and shape-controllable particles, but because of its large specific surface energy, it is easy to agglomerate during the synthesis and catalytic process, resulting in a decrease in its catalytic activity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of cyanuric cyanuric acid hexavalent carboxylic acid ligand H 6 The preparation method of L: Take 23.0g of 5-aminoterephthalic acid, 12.0g of sodium hydroxide and 200mL of water, stir for 30min, add 8.0g of cyanuric chloride, 40mL of 1,4-dioxane, and heat to reflux for 8h , adjust the pH=2 with hydrochloric acid, filter with suction and wash the solid 3 times with distilled water, and dry the solid to obtain the ligand H 6 L; Yield rate is 95%; Chemical formula is C 3 h 3 (NH) 3 (C 6 h 3 ) 3 (COOH) 6 , the molecular formula is C 27 h 21 N 3 o 12 .

Embodiment 2

[0031] A kind of cyanuric cyanuric acid hexavalent carboxylic acid ligand H 6The preparation method of L: Take 25.0g of 5-aminoterephthalic acid, 15.0g of sodium hydroxide and 200mL of water, stir for 30min, add 8.5g of cyanuric chloride, 50mL of 1,4-dioxane, and heat to reflux for 10h , adjust the pH=2 with hydrochloric acid, filter with suction and wash the solid 3 times with distilled water, and dry the solid to obtain the ligand H 6 L; Productive rate is 95%; Chemical formula is with embodiment 1, and molecular formula is with embodiment 1.

Embodiment 3

[0033] A kind of cyanuric cyanuric acid hexavalent carboxylic acid ligand H 6 The preparation method of L: take 24g of 5-aminoterephthalic acid, 13.5g of sodium hydroxide and 200mL of water, stir for 30min, add 8.25g of cyanuric chloride, 45mL of 1,4-dioxane, heat and reflux for 9h, Adjust the pH to 2 with hydrochloric acid, filter with suction and wash the solid 3 times with distilled water, and dry the solid to obtain the ligand H 6 L; The productive rate is 95%; The chemical formula is the same as Example 1, and the molecular formula is the same as Example 1.

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Abstract

The present invention relates to a ternary composite material preparation method, and belongs to the technical field of material science, nanometer materials, catalysis and the like. According to the present invention, a cyanuric chloride hexahydroxy carboxylic acid ligand and copper nitrate are adopted as raw materials to prepare the hydrothermally stable porous metal organic framework material Cu-MOF, Cu-MOF is adopted as a carrier, nanometer silver is anchored on the surface of the carrier, and a porous titanium dioxide shell layer is coated to prepare the ternary composite material Cu-MOF@Ag@TiO2. The composite material has the excellent performance of catalytic reduction of unsaturated organic compounds, and has good application prospects in heterogeneous catalytic reduction reactions.

Description

technical field [0001] The invention relates to a preparation method and application of a ternary composite material, in particular to a Cu-MOFAgTiO 2 The preparation method of the catalyst and the application of the catalytic reduction organic matter belong to the technical fields of material science, nanometer material, metal organic complex, chemical industry, catalysis and the like. Background technique [0002] Metal-organic frameworks (MOFs) materials are based on different metal ions and various rigid or flexible organic ligands, which form a class of tunable pore size, pore wall design and post-synthesis modification through coordination and complexation. Supramolecular porous materials. Compared with other porous materials, this material has a large specific surface area and high porosity, and its structure is closely related to its potential characteristics. However, a common deficiency of MOFs is poor hydrothermal stability, which limits the large-scale applicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/38B01J35/10C02F1/70C02F1/58C02F101/38
Inventor 王志玲李海芳陈瑶黄晓丽崔恩峰田亮于洋洋
Owner UNIV OF JINAN
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