Fluorescent material capable of visual detection of ammonia gas as well as preparation method and application of fluorescent material

A technology of fluorescent material and ammonia gas, which is applied in the field of fluorescent sensors, can solve the problems of slow response time and difficulty in carrying around, and achieve the effects of convenient detection and operation, simple preparation method and remarkable effect

Active Publication Date: 2014-12-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For existing photochemical sensors in the detection of NH 3 It is not easy to carry around, and the defect of slow response time. One of the purposes of the present invention is to provide a fluorescent material for detecting ammonia. The fluorescent material is a solid thin film material, easy to carry, and has a specific response to ammonia. It is very fast, and has high sensitivity and selectivity

Method used

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  • Fluorescent material capable of visual detection of ammonia gas as well as preparation method and application of fluorescent material
  • Fluorescent material capable of visual detection of ammonia gas as well as preparation method and application of fluorescent material
  • Fluorescent material capable of visual detection of ammonia gas as well as preparation method and application of fluorescent material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (1) Preparation of CMP-TPP

[0053] Weigh 2.05g (5.50mmol) of (1-p-bromophenyl-2,5-diphenyl)pyrrole, 0.99g (5.48mmol) of 4-methoxycarbonylphenylboronic acid, 0.25g (0.14mmol) of tetrakis (triphenyl) Phenylphosphine) palladium, and 2.01g (18.97mmol) of anhydrous sodium carbonate were added in a 500mL round bottom flask, and the bottle mouth was sealed with a rubber stopper. Vacuumize - fill with nitrogen 3 times to remove all the oxygen in the bottle.

[0054] Inject 40mL of methanol and 100mL of toluene into the bottle with a syringe (the methanol and toluene were passed through nitrogen to remove oxygen in advance), and stirred at room temperature for 30min to fully mix and dissolve the substances in the system. Heated to 90°C, reacted for 24h, and ended the reaction.

[0055] The toluene was spin-dried, and the resulting solid was dissolved in dichloromethane (100 mL), washed with a 5% HCl solution of dilute hydrochloric acid (500 mL) to remove Na 2 CO 3 . Separa...

Embodiment 2

[0078] (1) Preparation of CMP-TPP

[0079] Weigh 2.05g (5.50mmol) of (1-p-bromophenyl-2,5-diphenyl)pyrrole, 0.99g (5.48mmol) of 4-methoxycarbonylphenylboronic acid, 0.25g (0.14mmol) of tetrakis (triphenyl) Phenylphosphine) palladium, and 2.01g (18.97mmol) of anhydrous sodium carbonate were added in a 500mL round bottom flask, and the bottle mouth was sealed with a rubber stopper. Vacuumize - fill with nitrogen 3 times to remove all the oxygen in the bottle.

[0080] Inject 40mL of methanol and 100mL of toluene into the bottle with a syringe (the methanol and toluene were passed through nitrogen to remove oxygen in advance), and stirred at room temperature for 30min to fully mix and dissolve the substances in the system. Heated to 100°C, reacted for 18h, and ended the reaction.

[0081] The toluene was spin-dried, and the resulting solid was dissolved in dichloromethane (100 mL), washed with a 5% HCl solution of dilute hydrochloric acid (500 mL) to remove Na 2 CO 3 . Separ...

Embodiment 3

[0104] (1) Preparation of CMP-TPP

[0105] Weigh 2.05g (5.50mmol) of (1-p-bromophenyl-2,5-diphenyl)pyrrole, 0.99g (5.48mmol) of 4-methoxycarbonylphenylboronic acid, 0.25g (0.14mmol) of tetrakis (triphenyl) Phenylphosphine) palladium, and 2.01g (18.97mmol) of anhydrous sodium carbonate were added in a 500mL round bottom flask, and the bottle mouth was sealed with a rubber stopper. Vacuumize - fill with nitrogen 3 times to remove all the oxygen in the bottle.

[0106] Inject 40mL of methanol and 100mL of toluene into the bottle with a syringe (the methanol and toluene were passed through nitrogen to remove oxygen in advance), and stirred at room temperature for 30min to fully mix and dissolve the substances in the system. Heated to 120°C, reacted for 10h, and ended the reaction.

[0107] The toluene was spin-dried, and the resulting solid was dissolved in dichloromethane (100 mL), washed with a 5% HCl solution of dilute hydrochloric acid (500 mL) to remove Na 2 CO 3 . Separ...

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Abstract

The invention discloses a fluorescent material capable of visual detection of ammonia gas as well as a preparation method and an application of the fluorescent material, and belongs to the field of fluorescent biosensors. The fluorescent material is of a 1-(4'-carboxylic biphenyl)-2,5-diphenyl pyrrole (abbreviated as CP-TPP) film material, and is formed after the natural volatilization of a CP-TPP solution taken as a solvent which is dropwise smeared on a quartz plate. The fluorescent material which belongs to a solid film material is convenient to carry, has a specific response to the ammonia gas so as to rapidly detect the ammonia gas, and is high in sensitivity and selectivity. The preparation method is simple, convenient to operate and low in cost. The fluorescent material is simple to operate and obvious in effect during the detection of the ammonia gas, can be recycled and can be completely independent of a high precision instrument according to actual needs, thereby meeting the requirement of modern people on ammonia gas detection to a large extent.

Description

technical field [0001] The invention relates to a fluorescent material for visually detecting ammonia, a preparation method and application thereof, in particular to a fluorescent material for detecting ammonia and the preparation of a solid film thereof, and a fluorescent detection method for ammonia, belonging to the field of fluorescent sensors . Background technique [0002] Ammonia (NH 3 ) is a colorless, toxic and flammable gas with a strong irritating odor in the atmosphere. It has chemical reduction properties and is an important basic chemical raw material and product. Production process (such as compressed gas that can be used as industrial refrigerator, important raw material for synthetic nitrogen fertilizer, etc.), and its existence has a wide impact on people's daily life. NH released into the atmosphere 3 The main sources are some industrial production processes of chemical synthesis, biological metabolic processes (poultry and livestock excretion process, ...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07D207/327G01N21/64G01N21/78
Inventor 支俊格金娜张钰董宇平佟斌冯霄石建兵韩天宇
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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