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Preparation method of luminescent crystal material {[Cu(DMSO)5][Cu4I6(DMSO)]}n capable of detecting picric acid

A technology of luminescent crystals and picric acid, which is applied in the direction of luminescent materials, material analysis and material analysis through optical means, can solve the problems of complexity, equipment moving at any time, expensive equipment, etc., and achieve high yield, easy access to raw materials, good detection performance

Inactive Publication Date: 2016-05-18
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the detection methods of aromatic nitro explosives are mainly carried out by simulating the ability of dogs (electronic nose) and precision instruments. These equipment are not only expensive and complicated, but also need to solve the problem that the equipment can be moved at any time when used in the field.

Method used

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  • Preparation method of luminescent crystal material {[Cu(DMSO)5][Cu4I6(DMSO)]}n capable of detecting picric acid
  • Preparation method of luminescent crystal material {[Cu(DMSO)5][Cu4I6(DMSO)]}n capable of detecting picric acid
  • Preparation method of luminescent crystal material {[Cu(DMSO)5][Cu4I6(DMSO)]}n capable of detecting picric acid

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Embodiment 1

[0018] Embodiment 1: The present invention has the luminescent crystal material {[Cu(DMSO) of detecting picric acid 5 ][Cu 4 I 6 (DMSO)]} n The preparation method comprises the following steps:

[0019] In the first step, 1 mmol of cuprous iodide was added to 3 ml of dimethyl sulfoxide solution, and stirred for 30 minutes;

[0020] In the second step, hydrochloric acid is added dropwise to the solution prepared in the first step to adjust pH=2;

[0021] In the third step, the solution prepared in the second step was stirred at room temperature for two hours to obtain a luminescent crystal material {[Cu(DMSO) 5 ][Cu 4 I 6 (DMSO)]} n solution and filtered;

[0022] The fourth step, to the luminescent crystal material {[Cu(DMSO) 5 ][Cu 4 I 6 (DMSO)]} n Add isopropanol to the solution, crystallize to obtain yellow blocky crystals, filter, wash and dry to obtain the luminescent crystal material {[Cu(DMSO) 5 ][Cu 4 I 6 (DMSO)]} n .

[0023] Picric acid detection per...

Embodiment 2

[0024] Embodiment 2: The present invention has the luminescent crystal material {[Cu(DMSO) of detecting picric acid 5 ][Cu 4 I 6 (DMSO)]} n The preparation method comprises the following steps:

[0025] In the first step, 1 mmol of cuprous iodide was added to 3 ml of dimethyl sulfoxide solution, and stirred for 30 minutes;

[0026] In the second step, hydrochloric acid is added dropwise to the solution prepared in the first step to adjust pH=3;

[0027] In the third step, the solution prepared in the second step was stirred at room temperature for two hours to obtain a luminescent crystal material {[Cu(DMSO) 5 ][Cu 4 I 6 (DMSO)]} n solution and filtered;

[0028] The fourth step, to the luminescent crystal material {[Cu(DMSO) 5 ][Cu 4 I 6(DMSO)]} n Add isopropanol to the solution, crystallize to obtain yellow blocky crystals, filter, wash and dry to obtain the luminescent crystal material {[Cu(DMSO) 5 ][Cu 4 I 6 (DMSO)]} n .

[0029] Picric acid detection perf...

Embodiment 3

[0030] Embodiment 3: The present invention has the luminescent crystal material {[Cu(DMSO) for detection of picric acid 5 ][Cu 4 I 6 (DMSO)]} n The preparation method comprises the following steps:

[0031] In the first step, 1 mmol of cuprous iodide was added to 3 ml of dimethyl sulfoxide solution, and stirred for 30 minutes;

[0032] In the second step, hydrochloric acid is added dropwise to the solution prepared in the first step to adjust pH=4;

[0033] In the third step, the solution prepared in the second step was stirred at room temperature for two hours to obtain a luminescent crystal material {[Cu(DMSO) 5 ][Cu 4 I 6 (DMSO)]} n solution and filtered;

[0034] The fourth step, to the luminescent crystal material {[Cu(DMSO) 5 ][Cu 4 I 6 (DMSO)]} n Add isopropanol to the solution, crystallize to obtain yellow blocky crystals, filter, wash and dry to obtain the luminescent crystal material {[Cu(DMSO) 5 ][Cu 4 I 6 (DMSO)]} n .

[0035] Picric acid detection...

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Abstract

The invention discloses a preparation method of a luminescent crystal material {[Cu(DMSO)5][Cu4I6(DMSO)]}n capable of detecting picric acid. The method comprises the following steps: adding cuprous iodide into a dimethyl sulfoxide solution, and stirring to react for several minutes; dropwisely adding hydrochloric acid until the pH value of the solution is 2-4, stirring for two hours to obtain a solution containing the luminescent crystal material {[Cu(DMSO)5][Cu4I6(DMSO)]}n, and filtering; and finally, adding a precipitant into the prepared luminescent crystal material {[Cu(DMSO)5][Cu4I6(DMSO)]}n solution, crystallizing, filtering, washing and drying to obtain the luminescent crystal material {[Cu(DMSO)5][Cu4I6(DMSO)]}n. The method can be used for obtaining the luminescent crystal material {[Cu(DMSO)5][Cu4I6(DMSO)]}n capable of efficiently detecting picric acid.

Description

a technical field [0001] The invention relates to the preparation of aromatic nitro explosive detection materials, in particular to a luminescent crystal material {[Cu(DMSO) with detection of picric acid (2,4,6-trinitrophenol) 5 ][Cu 4 I 6 (DMSO)]} n method of preparation. Two background technology [0002] Since the Second World War, aromatic nitro compounds have been widely used in military and industrial fields as a kind of high-energy explosives. The rapid and selective detection of aromatic nitro explosives has become one of the problems related to many fields such as homeland security, military applications, forensic investigation, and minefield analysis. And because these aromatic nitro explosives are one of the important environmental pollutants, the detection of aromatic nitro explosives in soil and groundwater is very important for burial tracking, underwater explosives and environmental monitoring near ammunition bases, etc. Therefore, it is very meaningful t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F1/08C09K11/06G01N21/64
CPCC07F1/08C09K11/06C09K2211/188G01N21/643G01N2021/6432
Inventor 张金方刘宇航张弛
Owner JIANGNAN UNIV
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