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A silver complex based on bistriazole organic ligand and heteropolytungstic acid and its synthesis method and application

An organic ligand, heteropolytungstic acid technology, applied in organic compound/hydride/coordination complex catalysts, silver organic compounds, chemical instruments and methods, etc., can solve the problem of long catalytic degradation time, increase degradation cycle and energy Consumption and other problems, to achieve the effect of good catalytic degradation, reduced energy consumption, and strong affinity

Inactive Publication Date: 2016-01-20
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the photocatalytic degradation of organic pollutants such as methylene blue by this type of material is too much dependent on the polyacid component in the material, and the catalytic degradation time is longer, which increases the degradation cycle and energy for catalytic degradation of organic pollutants. consume

Method used

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  • A silver complex based on bistriazole organic ligand and heteropolytungstic acid and its synthesis method and application
  • A silver complex based on bistriazole organic ligand and heteropolytungstic acid and its synthesis method and application
  • A silver complex based on bistriazole organic ligand and heteropolytungstic acid and its synthesis method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 synthesizes [Ag 4 (L 1 ) 2 (H 2 O) 2 (PW VI 11 W V o 40 )]·H 2 O, where L 1 It is 3,3'-bis(1,2,4-triazole), the structural formula is:

[0037] 0.1mmolH 3 PW 12 o 40 , 0.18mmol3,3′-bis(1,2,4-triazole), 0.9mmolAgNO 3 , 0.28mmolNH 4 VO 3 and 10mLH 2 O was sequentially added into a 50mL beaker, stirred at room temperature for 60min, and 1.0mol / L HNO 3 Adjust the pH of the solution to 0.4, pour it into a 25mL autoclave, raise the temperature to 165°C at a heating rate of 15°C / hour, keep it warm for 5 days under hydrothermal conditions, and lower the temperature to room temperature at a cooling rate of 5°C / hour. Obtain brown-yellow bulk crystals, wash 2 times alternately with deionized water and ethanol, and dry naturally at room temperature to obtain [Ag 4 (L 1 ) 2 (H 2 O) 2 (PW VI 11 W V o 40 )]·H 2 O, the yield is 66%, and its coordination environment diagram is as follows Figure 5 As shown, its stacking diagram is as follows ...

Embodiment 2

[0038] Embodiment 2 synthesizes [Ag 4 (L 1 ) 2 (H 2 O) 2 (PW VI 11 W V o 40 )]·H 2 O, where L 1 3,3′-bis(1,2,4-triazole)

[0039] 0.1mmolH 3 PW 12 o 40 , 0.2mmol3,3'-bis(1,2,4-triazole), 1mmolAgNO 3 , 0.3mmolNH 4 VO 3 and 10mLH 2 O was sequentially added into a 50mL beaker, stirred at room temperature for 120min, and then mixed with 0.5mol / L HNO 3 Adjust the pH of the solution to 0.8, pour it into a 25mL autoclave, raise the temperature to 170°C at a heating rate of 10°C / hour, keep it under hydrothermal conditions for 6 days, and lower the temperature to room temperature at a cooling rate of 2.5°C / hour. Obtain brown-yellow bulk crystals, wash 3 times alternately with deionized water and ethanol, and dry naturally at room temperature to obtain [Ag 4 (L 1 ) 2 (H 2 O) 2 (PW VI 11 W V o 40 )]·H 2 O, the yield is 85%, and its coordination environment diagram is as follows Figure 5 As shown, its stacking diagram is as follows Figure 6 As shown, its top...

Embodiment 3

[0040] Embodiment 3 synthesizes [Ag 4 (L 1 ) 2 (H 2 O) 2 (PW VI 11 W V o 40 )]·H 2 O, where L 1 3,3′-bis(1,2,4-triazole)

[0041] 0.1mmolH 3 PW 12 o 40 , 0.22mmol3,3'-bis(1,2,4-triazole), 1.1mmolAgNO 3 , 0.32mmolNH 4 VO 3 and 10mLH 2 O was added to a 50mL beaker one by one, stirred at room temperature for 80min, and 0.5mol / L HNO 3 Adjust the pH of the solution to 1.8, pour it into a 25mL autoclave, raise the temperature to 175°C at a heating rate of 10°C / hour, keep it under hydrothermal conditions for 7 days, and lower the temperature to room temperature at a cooling rate of 2.5°C / hour. Obtain brown-yellow bulk crystals, wash 4 times alternately with deionized water and ethanol, and dry naturally at room temperature to obtain [Ag 4 (L 1 ) 2 (H 2 O) 2 (PW VI 11 W V o 40 )]·H 2 O, the yield is 75%, and its coordination environment diagram is as follows Figure 5 As shown, its stacking diagram is as follows Figure 6 As shown, its topology is as Fig...

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Abstract

The invention discloses silver complexes based on double triazole organic ligands and tungsten heteropoly acid and a synthetic method of the silver complexes and application of the silver complexes. The molecular formulas are (Ag4 (L1) 2 (H2O) 2 (PWVI11WVO40) ).H2O; (Ag4 (L1) 2 (SiW12O40) ).5H2O; (Ag4 (L2) 2 (H2O) 2 (PWVI11WVO40) ).2H2O. The synthetic method includes the steps that deionized water is added to a mixture of AgNO3, the double triazole organic ligands, the tungsten heteropoly acid and NH4VO3 for mixing, pH is adjusted, hydrothermal heat preservation is conducted, blocky claybank crystals are obtained, the crystals are cleaned and fully dried, and then the silver complexes based on the double triazole organic ligands and the tungsten heteropoly acid are obtained. The silver complexes have the advantages that the synthetic method is simple, the synthetic yield is high, affinity to water-soluble organic pollutants is high, the catalysis degradation effect is good, and the sliver complexes can be used as photocatalytic materials.

Description

technical field [0001] The invention belongs to the field of photocatalytic materials and synthesis methods, in particular to a silver complex based on bistriazole organic ligands and heteropolytungstic acid and its synthesis method and application. Background technique [0002] Polyacid-based metal-organic functional complexes are a kind of inorganic functional materials, which have the characteristics of various structures, good catalytic performance and wide application range. The synthesis of such complexes is not only restricted by the number of coordination sites and coordination ability of the organic ligands, but also affected by the coordination configuration, charge and ionic radius of the metal ions participating in the coordination. In addition, the nitrogen-containing ligands currently used to synthesize polyacid-based metal-organic complexes generally use derivatives such as imidazole and pyridine. These derivatives have a small number of coordination sites, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F1/10B01J31/22
Inventor 王秀丽刘国成林宏艳张巨文应俊田爱香
Owner BOHAI UNIV