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A method for synthesizing nano-zinc silicate luminescent material by using waste silicon powder hydrothermal method

A luminescent material, zinc silicate technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of complex reaction methods and narrow reactants, and achieve the effects of simple and easy method, expansion of scope, and low energy consumption

Inactive Publication Date: 2016-01-20
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing synthetic methods have the disadvantages of narrow reactants and complex reaction methods.

Method used

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  • A method for synthesizing nano-zinc silicate luminescent material by using waste silicon powder hydrothermal method
  • A method for synthesizing nano-zinc silicate luminescent material by using waste silicon powder hydrothermal method
  • A method for synthesizing nano-zinc silicate luminescent material by using waste silicon powder hydrothermal method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 4.65gZn(CH 3 COO) 2 2H 2 O, 0.01gMn(NO 3 ) 2 4H 2 O, 0.05g cetyltrimethylammonium bromide, dissolved in 50ml deionized water, add 0.56g waste silicon powder, stir for 15 minutes, then add 0.01g NaOH, stir for 10 minutes, transfer the above mixture to the lining Put it in a 100ml polytetrafluoroethylene reaction kettle, seal the reaction kettle, put it in an oven at 130°C for 48 hours, take it out to cool naturally, wash the product with distilled water, centrifuge, and dry naturally to obtain silicic acid Zinc luminescent material 4.22g, the product is green under the excitation of 254nm ultraviolet light.

Embodiment 2

[0026] 4.60gZn(CH 3 COO) 2 2H 2 O, 0.02gMn(NO 3 ) 2 4H 2 O, 0.05g cetyltrimethylammonium bromide, dissolved in 50ml deionized water, add 0.56g waste silicon powder, stir for 15 minutes, then add 0.01g NaOH, stir for 10 minutes, transfer the above mixture to the lining Put it in a 100ml polytetrafluoroethylene reaction kettle, seal the reaction kettle, put it in an oven at 130°C for 48 hours, take it out to cool naturally, wash the product with distilled water, centrifuge, and dry naturally to obtain silicic acid Zinc luminescent material 4.20g, the product is green under the excitation of 254nm ultraviolet light.

Embodiment 3

[0028] 4.95gZn(CH 3 COO) 2 2H 2 O, 0.01gMn(NO 3 ) 2 4H 2 O, 0.05g of cetyltrimethylammonium bromide, dissolved in 50ml of deionized water, add 0.55g of waste silicon powder, stir for 15 minutes, then add 0.01g of NaOH, stir for 10 minutes, transfer the above mixture to the lining Put it in a 100ml polytetrafluoroethylene reaction kettle, seal the reaction kettle, put it in an oven at 200°C for 12 hours, take it out to cool naturally, wash the product with distilled water, centrifuge, and dry naturally to obtain silicic acid Zinc luminescent material 4.02g, the product is green under the excitation of 254nm ultraviolet light.

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Abstract

The invention discloses a method of synthesizing a nano zinc silicate light emitting material by using waste silicon powder by a hydrothermal method. The method comprises the following steps: (1) dissolving Zn(CH3COO)2.2H2O, Mn(NO3)2.4H2O and hexadecyl trimethyl ammonium bromide in deionized water, adding the waste silicon powder, stirring for 15 minutes, adding sodium hydroxide or ammonium water with concentration being 25%, and stirring for 10 minutes to obtain a mixed solution; (2) putting the mixed solution prepared in the step (1) in a reaction kettle with the liner being polytetrafluoroethylene, sealing the reaction kettle, putting the kettle in an oven at 130-200 DEG C to react for 12-48 hours, taking, naturally cooling to room temperature, washing the product by distilled water. carrying out centrifugal separation, and naturally drying to obtain the zinc silicate light emitting material. By using waste silicon powder as a raw material, the method disclosed by the invention expands the range of reactants and can fully utilize industrial leftovers and achieve the purpose of recycling resources. Furthermore, the method disclosed by the invention which is a hydrothermal one-step reaction is simple and feasible and low in energy consumption.

Description

technical field [0001] The invention relates to the technical field of inorganic synthesis, in particular to a method for synthesizing nano-zinc silicate luminescent material by hydrothermal method using waste silicon powder. Background technique [0002] Fluorescent material is calcined by metal (zinc, chromium) sulfide or rare earth oxide and trace active agent. Colorless or light white, under the irradiation of ultraviolet light (200-400nm), it will show various colors of visible light (400-800nm) according to the type and content of metal and activator in the material. [0003] Inorganic fluorescent materials are represented by rare earth ion luminescence and rare earth fluorescent materials, which have the advantages of strong absorption capacity, high conversion rate, narrow-band emission of central ions of rare earth complexes, which is conducive to full-color display, and stable physical and chemical properties. Because rare earth ions have rich energy levels and 4f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/59
Inventor 温福山王燕王维杜永霞燕友果张军
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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