Intercalated structure nano material with room-temperature long-afterglow luminescence property and preparation method thereof

A technology of long-lasting luminescence and nano-materials, applied in luminescent materials, chemical instruments and methods, etc., can solve problems such as short service life, expensive raw materials, and irregular microscopic appearance of products, and achieve long-lasting afterglow effect and good stability Effect

Inactive Publication Date: 2016-07-27
BEIJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although traditional inorganic phosphorescent / afterglow materials have been widely used, they still have disadvantages such as complex synthesis process, irregular microscopic morphology of products, and expensive raw materials.
In recent years, the emerging organic phosphorescent materials have the characteristics of a wide range of raw material sources and bright colors. However, due to the relatively poor photothermal stability of organic phosphorescent materials, short service life, easy aging and complex synthesis processes, their development has been limited.

Method used

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  • Intercalated structure nano material with room-temperature long-afterglow luminescence property and preparation method thereof
  • Intercalated structure nano material with room-temperature long-afterglow luminescence property and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Dissolve 0.83 g of isophthalic acid and 0.40 g of sodium hydroxide in 100 ml of deionized water, and dissolve 1.88 g of aluminum nitrate nonahydrate and 2.97 g of zinc nitrate hexahydrate in 100 ml of deionized water. The two solutions were combined and stirred at 60°C for 24 hours. The white colloid solution after the reaction was centrifuged three times at 3500r / min, and then dried at 60°C for 24h.

[0021] To characterize the product,

[0022] The PXRD test of the product powder showed that the generated isophthalic acid intercalated hydrotalcite composite had reliable phase purity, and the organic molecules of isophthalic acid were successfully intercalated between the hydrotalcite layers. It provides a guarantee for its application as a room temperature phosphorescent material.

[0023] From the phosphorescence analysis, it can be seen that when excited at 320 nanometers, the phosphorescence emission peak of the isophthalic acid intercalated hydrotalcite composit...

Embodiment 2

[0026] Dissolve 0.83g of phthalic acid and 0.40g of sodium hydroxide in 100mL of deionized water, and dissolve 1.88g of aluminum nitrate and 2.97g of zinc nitrate in 100mL of deionized water. The two solutions were combined and stirred at 50°C for 12 hours. The white colloid solution after the reaction was centrifuged three times at 3500r / min, and then dried at 60°C for 24h.

[0027] To characterize the product,

[0028] The PXRD test of the product powder showed that the generated phthalic acid intercalated hydrotalcite composite had reliable phase purity, and the organic phthalic acid molecules were successfully intercalated between the hydrotalcite layers. It provides a guarantee for its application as a room temperature phosphorescent material.

[0029] From the phosphorescence analysis, it can be seen that the phosphorescence emission peak of the phthalic acid intercalated hydrotalcite composite appears at 470 nm when excited at 320 nm, as figure 2 shown. After being...

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Abstract

The invention discloses an intercalated structure nano material with a room-temperature long-afterglow luminescence property and a preparation method thereof, and belongs to the field of inorganic and organic composite luminescent materials.According to the preparation method, two-dimensional hydrotalcite is selected as a subject, organic matter of phthalic acid, isophthalic acid, terephthalic acid, trimesic acid, pyromellitic acid, benzene hexacarboxylic acid and the like are selected to serve as objects, and the intercalated hydrotalcite nano material is obtained through a coprecipitation method.The intercalated structure nano material with the room-temperature long-afterglow luminescence property and the preparation method thereof have the advantages that the organic matter is fixed in a rigid hydrotalcite layer board through electrostatic and hydrogen-bond interaction, an energy loss, caused by aggregation and vibration, of the organic matter is greatly inhibited, and therefore the phosphorescence luminous efficiency is improved, and the phosphorescence luminescence lifetime is prolonged.At the room temperature, longer room-temperature afterglow luminescence can be produced after ultraviolet irradiation to the material is finished.Meanwhile, the obtained nano material has a potential application value in the fields of biology, medical science and the like.

Description

technical field [0001] The invention relates to a room temperature long afterglow luminescent material with an intercalation structure and a preparation method thereof, which provides new ideas and feasible solutions for the design and synthesis of novel room temperature phosphorescent materials. technical background [0002] Due to the energy storage properties of room temperature long afterglow materials (or room temperature phosphorescent materials) to light energy, the synthesis and application of such materials have become the focus of attention. Although traditional inorganic phosphorescent / afterglow materials have been widely used, they still have disadvantages such as complex synthesis process, irregular microscopic morphology of products, and expensive raw materials. In recent years, the emerging organic phosphorescent materials have the characteristics of wide source of raw materials and bright colors. However, the development of organic phosphorescent materials is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/02C09K11/06C09K11/64
CPCC09K11/02C09K11/06C09K11/642C09K2211/1007
Inventor 闫东鹏高瑞
Owner BEIJING NORMAL UNIVERSITY
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