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Tri(8-hydroxyquinoline-5-sulfonate) aluminum complex anion intercalated hydrotalcite composite luminescent material and preparation method thereof

An anion intercalation, hydroxyquinoline technology, applied in luminescent materials, chemical instruments and methods, etc.

Inactive Publication Date: 2010-07-07
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on the introduction of tris(8-hydroxyquinoline-5-sulfonate sodium)aluminum and surfactant molecules into the layered material hydrotalcite layer has not been reported so far.

Method used

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  • Tri(8-hydroxyquinoline-5-sulfonate) aluminum complex anion intercalated hydrotalcite composite luminescent material and preparation method thereof
  • Tri(8-hydroxyquinoline-5-sulfonate) aluminum complex anion intercalated hydrotalcite composite luminescent material and preparation method thereof
  • Tri(8-hydroxyquinoline-5-sulfonate) aluminum complex anion intercalated hydrotalcite composite luminescent material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Weigh 0.769g Mg(NO 3 ) 2 ·6H 2 O and 0.563g Al(NO 3 ) 3 9H 2 O dissolved in 50ml to remove CO 2 , deionized water, to obtain solution A, Mg 2+ / Al 3+ The molar ratio is 2:1, Mg 2+ The concentration is 0.06M;

[0035] 2. Dissolve 0.036g of tris(8-hydroxyquinoline-5-sulfonate)aluminum and 0.371g of sodium dodecylsulfonate in 50ml of water to obtain solution B, tris(8-hydroxyquinoline-5- Sodium sulfonate) the concentration of aluminum is 0.0009M;

[0036] 3. Mix solution A and solution B to obtain solution C, and pour solution C into a four-necked flask;

[0037] 4. Dissolve 0.8g NaOH in 40ml to remove CO 2 , deionized water, the NaOH solution was passed through a constant pressure funnel, and under the condition of nitrogen protection, slowly added dropwise to the four-necked flask equipped with solution C until the pH value was 9.5 to obtain slurry D, which was transferred to a 100ml high-pressure The reaction kettle was placed in an oven at 110°C for 20 h...

Embodiment 2

[0041] 1. Weigh 0.769g Mg(NO 3 ) 2 ·6H 2 O and 0.563g Al(NO 3 ) 3 9H 2 O dissolved in 50ml to remove CO 2 , deionized water, to obtain solution A, Mg 2+ / Al 3+ The molar ratio is 2:1, Mg 2+ The concentration is 0.06M;

[0042] 2. Dissolve 0.267g of tris(8-hydroxyquinoline-5-sulfonate)aluminum and 0.136g of sodium dodecylsulfonate in 50ml of water to obtain solution B, tris(8-hydroxyquinoline-5- Sodium sulfonate) the concentration of aluminum is 0.0067M;

[0043] 3. Mix solution A and solution B to obtain solution C, and pour solution C into a four-necked flask;

[0044] 4. Dissolve 0.8g NaOH in 20ml to remove CO 2 , deionized water, the NaOH solution was passed through a constant pressure funnel, and under nitrogen protection conditions, slowly added dropwise to the four-necked flask equipped with solution C until the pH value was 10 to obtain slurry D, which was transferred to a 100ml high-pressure The reaction kettle was placed in an oven at 130°C for 24 hours; ...

Embodiment 3

[0048] 1. Weigh 1.154g Mg(NO 3 ) 2 ·6H 2 O and 0.563g Al(NO 3 ) 3 9H 2 O dissolved in 50ml to remove CO 2 , deionized water, to obtain solution A, Mg 2+ / Al 3+ The molar ratio is 3:1, Mg 2+ The concentration is 0.09M;

[0049] 2. Dissolve 0.392g of tris(8-hydroxyquinoline-5-sulfonate)aluminum and 0.008g of sodium dodecylsulfonate in 50ml of water to obtain solution B, tris(8-hydroxyquinoline-5- Sodium sulfonate) the concentration of aluminum is 0.0098M;

[0050] 3. Mix solution A and solution B to obtain solution C, and pour solution C into a four-necked flask;

[0051] 4. Dissolve 0.8g NaOH in 40ml to remove CO 2 , deionized water, the NaOH solution was passed through a constant pressure funnel, and under nitrogen protection conditions, slowly added dropwise to the four-necked flask equipped with solution C until the pH value was 11 to obtain slurry D, which was transferred to a 100ml high-pressure The reaction kettle was placed in an oven at 140°C for 36 hours; ...

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Abstract

The invention discloses blue light emitting materials of tri(8-hydroxyquinoline-5-sulfonate) aluminum complex anion intercalated hydrotalcite and a preparation method thereof, and belongs to the technical field of inorganic / organic composite luminescent materials. In the method, a surfactant of which the molecular length is similar to that of tri(8-hydroxyquinoline-5-sulfonate) aluminum complex anions is selected so as to obtain the composite luminescent material, dispersed uniformly among hydrotalcite layers, of the tri(8-hydroxyquinoline-5-sulfonate) aluminum complex anion intercalated hydrotalcite by a coprecipitation method. The method realizes the immobilization of the tri(8-hydroxyquinoline-5-sulfonate) aluminum complex anions, improves the heat stability of luminescent molecules of the metal complex and realizes the conversion from the green light luminescent material tri(8-hydroxyquinoline-5-sulfonate) aluminum to the blue light luminescent materials of hydrotalcite intercalated products thereof.

Description

technical field [0001] The invention belongs to the technical field of inorganic / organic composite luminescent materials, and particularly relates to a composite luminescent material of tris(8-hydroxyquinoline-5-sulfonate)aluminum with anion intercalation hydrotalcite and a preparation method thereof. Background technique [0002] Tris(8-hydroxyquinoline)aluminum complexes have been widely used in multi-color and large-screen display and lighting as a kind of green photoluminescent material with excellent performance since they were first discovered by C.W.Tang of Kodak Company in the United States in 1987. Devices. Especially in the research of organic light-emitting diode (OLED) devices, due to its high fluorescence quantum efficiency, high electron transfer rate, high glass transition temperature, and easy vacuum deposition into films, it has been used to make high-performance green organic electronics. Luminescent devices. Tris(8-hydroxyquinoline)aluminum and its deriv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06
Inventor 陆军李双德卫敏段雪
Owner BEIJING UNIV OF CHEM TECH
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