Attapulgite-clay-based composite fluorescent material, and preparation method and application thereof

A technology of composite fluorescence and fluorescent dyes, which is applied in the field of attapulgite-based composite fluorescent materials and their preparation, can solve the problems of poor machining performance and solubility of peryleneimide fluorescent materials, unfavorable application of peryleneimide fluorescent materials, and toxic and side effects. and other problems, to achieve the effect of improving machinability, poor solubility, excellent fluorescence properties, and low risk

Active Publication Date: 2016-12-21
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although peryleneimide compounds have superior performance and are widely used in optical sensing and other fields, they still have some limitations, such as: the mechanical processing performance and solubility of peryleneimide fluorescent materials are poor, and at higher concentrations There will be fluorescence quenching phenomenon in the solution, and there are a small amount of toxic side effects, etc. These disadvantages are not conducive to the further application of peryleneimide fluorescent materials, and there is still room for improvement in these aspects

Method used

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  • Attapulgite-clay-based composite fluorescent material, and preparation method and application thereof
  • Attapulgite-clay-based composite fluorescent material, and preparation method and application thereof
  • Attapulgite-clay-based composite fluorescent material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Put 45 g of attapulgite into 474 g of 0.8 mol / L hydrochloric acid solution, stir evenly, wash with centrifugal water to neutrality, grind into powder after freeze-drying, and ultrasonically disperse 2 g of attapulgite powder after acidification in 98 g of isophthalic acid Gels form in propanol.

[0047] (2) Add 60ml of 2wt.% attapulgite isopropanol gel and 2 mmol of aminopropyltrimethoxysilane into an Erlenmeyer flask, heat at 80°C for 15h, cool, wash by centrifugation, and dry in vacuum at 60°C. The resulting product is recorded as AT-NH 2 .

[0048] (3) Add 0.2g of PBS (perylene-3,4,9,10-tetracarboxylic dianhydride) and 4mL of 0.9 mol / L KOH into the flask, and heat at constant temperature for 1 hour. Then, slowly add 2 mL of 10% HO over 3 hours 3 PO 4 , cooled, centrifuged and washed with water, dried at 70°C, and the resulting product was denoted as PBSK.

[0049] (4) Add 0.1g AT-NH 2 Add it to 10 g of isopropanol, then add 0.1 g of PBSK, put it into a magn...

Embodiment 2

[0053] (1) Put 45 g of attapulgite into 383 g of 1.5 mol / L hydrochloric acid solution, stir evenly, wash with centrifugal water to neutrality, grind into powder after freeze-drying, and ultrasonically disperse 3 g of attapulgite powder after acidification in 97 g of isophthalic acid Gels form in propanol.

[0054] (2) Add 60ml of 3wt.% attapulgite isopropanol gel and 2 mmol of aminopropyltrimethoxysilane into an Erlenmeyer flask, heat at 80°C for 15h, cool, wash by centrifugation, and dry in vacuum at 60°C. The resulting product is recorded as AT-NH 2 .

[0055] (3) Add 0.3g of PBS (perylene-3,4,9,10-tetracarboxylic dianhydride) and 5mL of 0.9 mol / L KOH into the flask, and heat at constant temperature for 1 hour. Next, slowly add 4 mL of 10% HO over 3 hours 3 PO 4 , cooled, centrifuged and washed with water, dried at 70°C, and the resulting product was denoted as PBSK.

[0056] (4) Add 0.1g AT-NH 2 Add it to 10 g of isopropanol, then add 0.08 g of PBSK, put it into a mag...

Embodiment 3

[0060] (1) Put 45g of attapulgite into 420g of 1mol / L hydrochloric acid solution, stir evenly, wash with centrifugal water to neutrality, freeze-dry and grind into powder, ultrasonically disperse 3g of attapulgite powder after acidification in 97g of isopropyl Gels form in alcohol.

[0061] (2) Add 60ml of 3wt.% attapulgite isopropanol gel and 2 mmol of aminopropyltrimethoxysilane into an Erlenmeyer flask, heat at 80°C for 15h, cool, wash by centrifugation, and dry in vacuum at 60°C. The resulting product is recorded as AT-NH 2 .

[0062] (3) Add 0.4g of PBS (perylene-3,4,9,10-tetracarboxylic dianhydride) and 5mL of 0.9 mol / L KOH into the flask, and heat at constant temperature for 1 hour. Next, slowly add 4 mL of 10% HO over 3 hours 3 PO 4 , cooled, centrifuged and washed with water, dried at 70°C, and the resulting product was denoted as PBSK.

[0063] (4) Add 0.1g AT-NH 2 Add it to 10 g of isopropanol, then add 0.12 g of PBSK, put it into a magnetic stirrer, place it ...

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Abstract

The invention discloses an attapulgite-clay-based composite fluorescent material, and a preparation method and an application thereof. The attapulgite-clay-based composite fluorescent material is prepared by the following steps: adopting amino-modified attapulgite clay as a substrate material, loading perylene-diimide type organic fluorescent dye on the surface, utilizing large specific surface area, high heat stability and excellent organic-group aging-resistant protective capability of attapulgite clay, adopting the amino-modified attapulgite clay as a substrate, and enabling amino groups to react with perylenetetracarboxydianhydride derivatives. The attapulgite-clay-based composite fluorescent material disclosed by the invention has the advantages that the phenomenon of easy auto-agglutination of perylene-diimide type compounds is improved to a certain extent, the fluorescence intensity is obviously enhanced, multiple organic pollutants can be detected and fast detection of low-concentration organic pollutants is realized.

Description

technical field [0001] The invention belongs to the field of organic-inorganic composite materials, and in particular relates to an attapulgite-based composite fluorescent material and its preparation method and application. Background technique [0002] Organic pollution is common in all countries in the world, and it is one of the environmental problems that need to be solved urgently. We urgently need to monitor organic pollutants efficiently. There are many methods for detecting organic pollutants, including gas chromatography-mass spectrometry, Liquid chromatography-mass spectrometry, infrared spectroscopy, spectrophotometry, fluorescence analysis, etc. In recent years, due to the advantages of high sensitivity, good selectivity, convenience, and fast response time, the fluorescence analysis method overcomes the limitations of other detection methods due to the large size of the instrument and the inconvenient real-time detection on the spot, so it is favored by people....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/02C09K11/06C09B5/62G01N21/64
CPCC09B5/62C09K11/025C09K11/06C09K2211/1029G01N21/643
Inventor 倪伶俐张鹏颖丁雨晴盛雪胡雅岚冯良东
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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