Nanometer material with convertible color and preparing method thereof

A nanomaterial and color technology, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, etc., can solve the problems of complex process, high cost, affecting the application field of luminescent materials, etc., and achieve the effect of simple process, low cost and small particle size.

Inactive Publication Date: 2004-06-16
郑岩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the existing manufacturing processes of up-conversion luminescent materials adopt the traditional process method, the process is complicated, the cost is high, and the particle size of the prepared materials is about 10-50 microns, and the larger particle size affects the application field of luminescent materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take Y 2 O 3 60g, Yb 2 O 3 35g and Er 2 O 35g, mix and grind the components uniformly, put into the furnace at 350°C, sinter for 1 hour, then heat up to 650°C at a rate of 10°C / hour, sinter for 4 hours to make a sintered body, ground powder to make nano powder material , Its particle size is 300 nanometers. The material emits green visible light when excited by an infrared emitter.

Embodiment 2-5

[0027] The process of Example 1 was repeated, except that raw materials of different composition and weight were used. The conditions of each example are listed in Table 1 below.

[0028] Example 2

Embodiment 6

[0030] Take Y 2 O 3 70g, Yb 2 O 3 25 g and Er 2 O 3 5g, mix and grind the components uniformly, put them into the furnace at 500°C, sinter for 2 hours, heat up to 900°C at a rate of 50°C / hour, sinter for 1 hour, heat up to 1300°C, and sinter for 2 hours to make a sintered body. Grinding and pulverizing to produce nano-powder material with a particle size of 900 nm. The material emits red visible light when excited by an infrared light emitter.

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PUM

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Abstract

The invention provides a color upper conversion nano material and method for preparation, wherein the nano material comprises one or more ground substance selected from the oxide and inorganic salt of yttrium, gadolinium and lanthanum, one or more activating agents selected from the oxide and inorganic salt of yttrium and thulium, one or more coactivator selected from the oxide and inorganic salt of erbium, holmium, cerium, praseodymium and magnesium, the granularity of the material is 50-900 nm. The nano material provided by the invention has strong stableness, it is easy to integrate with biochemical antibody, thus can be utilized for the quick detection of various viruses and bacteria.

Description

Technical field [0001] The invention relates to a color up-conversion nano material and a preparation method thereof, in particular to a color up-conversion nano material containing various rare earth element compounds and a preparation method thereof. Background technique [0002] First of all, the term "color up-conversion" or "up-conversion luminescence" material as used herein refers to a material that can convert invisible infrared light into visible light such as red, green or blue light under the irradiation of an infrared laser. [0003] When detecting organisms, ultraviolet light and infrared light are often used to excite the label. When the fluorescent label is excited by ultraviolet light, it will damage the cells, DNA and other biological samples to be tested. Moreover, traditional particle markers such as colloidal gold, colored glue, C particles, etc. must be combined with the test substance to achieve a large degree of enrichment during the detection process in or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K9/00
Inventor 郑岩侯秀杰费运启
Owner 郑岩
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