Method for preparing rhodamine intercalation hydrotalcite luminescent material

A technology of luminescent materials and hydrotalcites, which is applied in the direction of luminescent materials, hydrotalcites, chemical instruments and methods, etc., can solve the problems of high gain and low threshold, and achieve the effect of reducing fluorescence quenching

Inactive Publication Date: 2008-09-03
BEIJING UNIV OF CHEM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Rhodamine is the most common laser dye, which has the advantages of high fluorescence quantum efficiency, low threshold, and high gain. However, the introduction of rhodamine into the layered material hydrotalcite layer has not been reported yet.

Method used

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  • Method for preparing rhodamine intercalation hydrotalcite luminescent material
  • Method for preparing rhodamine intercalation hydrotalcite luminescent material

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Step A: take by weighing 1.282g Mg(NO 3 ) 2 ·6H 2 O and 0.938g Al(NO 3 ) 3 9H 2 O, 0.828g of DBS and 0.026g of RB (that is, the initial molar ratio of DBS to RB at 100:5) were dissolved in 35ml to remove CO 2 , deionized water and 70ml of absolute ethanol to prepare mixed salt solution C, and another 0.6g NaOH was dissolved in 105ml to remove CO 2 , Deionized water is recorded as solution D.

[0021] Step B: Using the nucleation crystallization isolation method, the solutions C and D were fully reacted in a fully back-mixed liquid film reactor and mixed uniformly for 1 minute. Then the mixed slurry was poured into three 90ml polytetrafluoroethylene reaction containers and nitrogen gas was blown in for 5 minutes, then loaded into a pressure vessel, and reacted at 100°C for 24 hours under hydrothermal solvent thermal conditions.

[0022] Step C: Remove the product from the reactor, and use absolute ethanol and CO removal 2 1. Wash with deionized water for 3 times ...

Embodiment 2

[0025] Step A: take by weighing 1.282g Mg(NO 3 ) 2 ·6H 2 O and 0.938g Al(NO 3 ) 3 9H 2 O, 0.828g of DBS and 0.052g of RB (i.e. the initial molar ratio of DBS to RB is 100:10) were dissolved in 50ml to remove CO 2 , deionized water and 50ml of absolute ethanol to prepare mixed salt solution C, and another 0.6g of NaOH was dissolved in 100ml to remove CO 2 , Deionized water is recorded as solution D.

[0026] Step B: Same as Step B of Example 1, using the nucleation crystallization isolation method, fully reacting solutions C and D in a fully back-mixed liquid membrane reactor, and mixing uniformly for 1 minute. Then pour the mixed slurry into three 90ml polytetrafluoroethylene reaction containers and pass nitrogen gas for 5 minutes, then load the pressure bomb, and react for 24 hours under the condition of hydrothermal solvent heat at 100°C;

[0027] Step C: Same as Step C of Implementation Example 1, remove the product from the reactor, use absolute ethanol and remove C...

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Abstract

A hydrotalcite composite luminescent material with rhodamine intercalation, which pertains to abio-organic composite luminescent material. The process is preparing solution A with mole ratio of bivalence and tervalence cation M2+ / M3+=2.0-4.0; adding laser dye sulphonated rhodamine and sodium salt of dodecylbenzene sulfonic acid into mixed solution of ethanol and water and fully dissolving to obtain solution of sulphonated rhodamine and dodecyl benzene sulfone acid group containing anion with negative charge B; mixing solution A, B into solution C, preparing NaOH solution; communicating solution C and NaOH solution into full-back-liquid mixing membrane reactor to react, mixing to obtain red slurry, introducing the red slurry into hydrothermal kettle, reacting, absterging by CO2, de-ionized water and absolute ethyl alcohol and centrifugally separating, vacuum drying. Then hydrotalcite system with co-intercalation of suphonated rhodamine and dodecyl sulfone acid group is obtained. Advantages of the invention are that dye molecular is immobilized, and fluorescence quenching caused by dye aggregation is reduced.

Description

technical field [0001] The invention belongs to the field of inorganic-organic composite luminescent materials, and in particular provides a preparation method of a rhodamine-intercalated hydrotalcite composite luminescent material. Background technique [0002] As a tunable laser with good performance, dye laser has the advantages of wide output spectral line range, high power and low price, and has good application value in military, medical and other fields. According to the state of the working substance, dye lasers can be divided into liquid dye lasers, solid dye lasers and gas dye lasers. At present, the most common one is liquid dye laser. However, this type of dye laser has the disadvantages of being flammable, explosive, difficult to remove, difficult to operate, and easy to cause environmental pollution. Compared with it, solid dye laser can overcome the above-mentioned liquid dye laser. Disadvantages, greatly reducing the harm of dissolved dyes to human health an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/00C01B33/44
CPCC01P2002/72C01P2002/22C01F7/005C01F7/785
Inventor 卫敏闫东鹏陆军段雪
Owner BEIJING UNIV OF CHEM TECH
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