Unlock instant, AI-driven research and patent intelligence for your innovation.

Nanotube, nano bar-shape aluminate long afterglow materials and method for preparing same

A long afterglow material and nanorod-shaped technology, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of complex process, high cost, and many auxiliary agents

Inactive Publication Date: 2009-02-04
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this preparation method has disadvantages. First, the prepared luminescent material is only in the form of particles, and its exact chemical formula is not known. There is no experimental data on the spectral range of luminescence and the time of afterglow. Proof; secondly, more auxiliary agents are used in the preparation, a longer sol formation time is required, and vacuum equipment drying is required, which makes the process complicated, long in time and high in cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nanotube, nano bar-shape aluminate long afterglow materials and method for preparing same
  • Nanotube, nano bar-shape aluminate long afterglow materials and method for preparing same
  • Nanotube, nano bar-shape aluminate long afterglow materials and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: the preparation steps are as follows, 1), 0.004 moles of strontium nitrate Sr (NO 3 ) 2 (or strontium chloride SrCl 2 or strontium acetate Sr(CH 3 COO) 2 ), 0.01 mole aluminum nitrate Al(NO 3 ) 3 (or Aluminum Chloride AlCl 3 ), 0.0002 moles of europium nitrate Eu(NO 3 ) 3 (or europium chloride EuCl 3 Or europium acetate Eu(CH 3 COO) 3 ), 0.0002 moles dysprosium nitrate Dy(NO 3 ) 3 (or dysprosium chloride DyCl 3 or dysprosium acetate Dy(CH 3 COO) 3 ), 0.05 mole of urea, 50 ml of water and 0.01 mole of dodecyltrimethylammonium chloride (bromide) (or cetyltrimethylammonium chloride (bromide) or octadecyltrimethylchloride ( Ammonium bromide) was placed in a closed container, stirred and dissolved, and kept at 80°C for 20 hours to obtain the product. 2), first filter the cooled product, and then anneal it in a protective gas at 1250°C for 4 hours, wherein the protective gas is a mixed gas composed of 93% argon and 7% hydrogen to obtain Such as ...

Embodiment 2

[0023] Embodiment 2: the preparation steps are as follows, 1), 0.0045 moles of strontium nitrate Sr (NO 3 ) 2 (or strontium chloride SrCl 2 or strontium acetate Sr(CH 3 COO) 2 ), 0.01 mole aluminum nitrate Al(NO 3 ) 3 (or Aluminum Chloride AlCl 3 ), 0.0002 moles of europium nitrate Eu(NO 3 ) 3 (or europium chloride EuCl 3 Or europium acetate Eu(CH 3 COO) 3 ), 0.0002 moles dysprosium nitrate Dy(NO 3 ) 3 (or dysprosium chloride DyCl 3 or dysprosium acetate Dy(CH 3 COO) 3 ), 0.05 mole of urea, 50 ml of water and 0.01 mole of dodecyltrimethylammonium chloride (bromide) (or cetyltrimethylammonium chloride (bromide) or octadecyltrimethylchloride ( Ammonium bromide) was placed in a closed container, stirred and dissolved, and kept at 90°C for 17 hours to obtain the product. 2), first filter the cooled product, and then anneal it in a protective gas at 1200°C for 3.5 hours, wherein the protective gas is a mixed gas composed of 95% argon and 5% hydrogen to obtain Such ...

Embodiment 3

[0024] Embodiment 3: the preparation steps are as follows, 1), 0.005 moles of strontium nitrate Sr (NO 3 ) 2 (or strontium chloride SrCl 2 or strontium acetate Sr(CH 3 COO) 2 ), 0.01 mole aluminum nitrate Al(NO 3 ) 3 (or Aluminum Chloride AlCl 3 ), 0.0002 moles of europium nitrate Eu(NO 3 ) 3 (or europium sulfate Eu 2 (SO 4 ) 3 Or europium chloride EuCl 3 Or europium acetate Eu(CH 3 COO) 3 ), 0.0002 moles dysprosium nitrate Dy(NO 3 ) 3 (or dysprosium chloride DyCl 3 or dysprosium acetate Dy(CH 3 COO) 3), 0.05 mole of urea, 50 ml of water and 0.01 mole of dodecyltrimethylammonium chloride (bromide) (or cetyltrimethylammonium chloride (bromide) or octadecyltrimethylchloride ( Ammonium bromide) was placed in a closed container, stirred and dissolved, and kept at 110°C for 13 hours to obtain the product. 2), first filter the cooled product, and then anneal it in a protective gas at 1350°C for 3 hours, wherein the protective gas is a mixed gas composed of 96% arg...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
verticalityaaaaaaaaaa
lengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

This invention discloses a nano tube and rodlike aluminate long afterglow material and method for making same. The material comprises aluminate, especially the nano tube and rodlike aluminate long afterglow material, with a 100-300nm tube diameter, 30-60nm tube thickness, 5-20micron tube length, 50-200nm rod diameter and 5-20micron rod length. The method comprises a liquid phase method, comprising: 1) the molar ratio of water soluble strontium salt(Sr2+) or water soluble barium salt or water soluble calcium salt:water soluble aluminium salt(Al3+):water soluble europium salt(Eu2+):water soluble dysprosium salt(Dy3+):urea:water:surfactant=0.4-0.6:1:0.02:0.02:5:3:1, mix the above material in a hermetic container, and heat at 80-130Deg C for 7-20h to obtain the product; 2) filtrate the product and anneal under the 1250-1450Deg C protective air for 2-4h to obtain the nano tube and rodlike aluminate long afterglow material. The product is characterized of long afterglow time, easy for industrial application, simple producing process, high efficiency and low cost.

Description

technical field [0001] The invention relates to a nano-scale long afterglow material and a preparation method thereof, in particular to a nano-tube and nano-rod aluminate long afterglow material and a preparation method thereof. Background technique [0002] The aluminate luminescent body activated by rare earth elements such as europium is a new generation of photoluminescent materials. Fields such as consumer goods show broad application prospects. At present, people have made some attempts and efforts to obtain it, such as "an aluminate-based luminescent material and its synthesis method" disclosed in the Chinese invention patent application publication CN 1197831A published on November 4, 1998. It uses the sol-gel method to synthesize aluminate luminescent materials by using the parent material as an organic compound solution containing aluminum, together with an activator, a co-activator, a co-solvent, and a catalyst composed of an organic compound solution or an aqueo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/80
Inventor 程抱昌方明张立德
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI