Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fluorine ion and metal ion-doped cerium oxide-based nanometer ultraviolet shielding material and preparation method thereof

A technology of metal ions and cerium oxide, which is applied in nanotechnology, chemical instruments and methods, and nanotechnology for materials and surface science, can solve problems such as complex preparation process, hidden safety hazards, and difficulties in industrialized and expanded production. Achieve the effect of low oxidation catalytic activity and simple preparation process

Active Publication Date: 2012-07-11
GRIREM ADVANCED MATERIALS CO LTD
View PDF6 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, strong alkali sodium hydroxide is used as precipitant in the preparation process, so hidden safety hazards in product use still exist, and the preparation process is complicated, making it difficult to expand industrial production

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
  • Fluorine ion and metal ion-doped cerium oxide-based nanometer ultraviolet shielding material and preparation method thereof
  • Fluorine ion and metal ion-doped cerium oxide-based nanometer ultraviolet shielding material and preparation method thereof
  • Fluorine ion and metal ion-doped cerium oxide-based nanometer ultraviolet shielding material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1: prepare Ce 0.9 Sr 0.1 o 1.82 f 0.16 powder

[0064] Prepare 0.35mol / L cerium nitrate solution and 1mol / L ammonium carbonate solution for use. According to the molar ratio of cerium ion: strontium ion: fluoride ion is 0.9: 0.1: 0.16, take the amount of reactant cerium nitrate, strontium nitrate, ammonium fluoride, mix the obtained cerium nitrate solution with strontium nitrate, stir to obtain strontium , Cerium metal ion mixed solution. Take 2 times the theoretical amount of precipitant ammonium carbonate, mix the ammonium carbonate solution and ammonium fluoride evenly, then drop the mixed solution of strontium and cerium metal ions into it at a constant speed, stir at room temperature for 3 hours, and age for 20 hours after the precipitation is complete to form a slurry After the material was filtered, washed, dried at 100°C for 12 hours, roasted at a constant temperature of 600°C for 5 hours, and cooled to room temperature, the co-doped nano cerium ...

Embodiment 2

[0066] Embodiment 2: preparation Ce 0.8 La 0.2 o 1.75 f 0.3 powder

[0067] Prepare 0.6 mol / L cerium ammonium nitrate solution and 1 mol / L ammonium bicarbonate solution for use. According to the molar ratio of cerium ion: lanthanum ion: fluoride ion is 0.8: 0.2: 0.3, take the amount of reactants cerium ammonium nitrate, lanthanum nitrate, ammonium bifluoride, mix the taken cerium ammonium nitrate solution with lanthanum nitrate, stir to obtain A mixed solution of lanthanum and cerium metal ions. Take 3 times the theoretical amount of precipitant ammonium bicarbonate, mix the ammonium bicarbonate solution and ammonium bifluoride evenly, drop the mixed solution of lanthanum and cerium metal ions into it at a constant speed, control the reaction temperature at about 40°C, stir for 2 hours, and after the precipitation is complete Aging for 10 hours, forming a slurry, filtering, washing, drying at 90°C for 20 hours, calcining at 600°C for 5 hours, and cooling to room temperatu...

Embodiment 3

[0069] Embodiment 3: preparation Ce 0.96 Eu 0.04 o 1.93 f 0.1 powder

[0070] Prepare 0.4mol / L cerium acetate solution and 1mol / L ammonium carbonate solution for use. According to the molar ratio of cerium ion: europium ion: fluoride ion being 0.96:0.04:0.1, take the amount of reactant cerium acetate, europium acetate, hydrofluoric acid, mix the taken cerium acetate solution with europium acetate, stir to obtain europium , Cerium metal ion mixed solution. Take 3 times the theoretical amount of precipitant ammonium carbonate, mix the ammonium carbonate solution with hydrofluoric acid evenly, drop the mixed solution of europium and cerium metal ions into it at a constant speed, stir at room temperature for 2 hours, and age for 4 hours after the precipitation is complete to form a slurry After filtering, washing, drying at 80°C for 24h, calcining at 500°C for 10h, and cooling to room temperature, the co-doped nano cerium oxide powder is obtained.

[0071] co-doped F - , Eu...

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
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a fluorine ion and metal ion-doped cerium oxide-based nano ultraviolet shielding material and a preparation method thereof. The fluorine ion and metal ion-doped cerium oxide-based nano ultraviolet shielding material is characterized by having a chemical formula of CexMyOzFw, wherein M is at least one of divalent alkaline-earth metals and non-cerium rare-earth metals, x is not less than 0.8 and is less than 1, y is more than 0 and is not more than 0.2, z is not less than 1.65 and is less than 2, w is more than 0 and is not more than 0.3, and the chemical formula CexMyOzFw meets charge balance. According to the invention, by adopting a nonhazardous carbonate as a precipitator, the fluorine ion and metal ion-doped cerium oxide-based nano ultraviolet shielding material is prepared through the coprecipitation method. The fluorine ion and metal ion-doped cerium oxide-based nano ultraviolet shielding material can be used in materials and products such as textiles, outdoor articles for everyday use, sunscreen cream, rubber, asphalt, glass, coatings in daylight lamps, macromolecule fibers, macromolecule plastics, paintings, and industrial and civil paints with the requirements of high ultraviolet absorption rate, high visible light transmission rate and low oxidization catalytic activity.

Description

technical field [0001] The invention belongs to the field of nano-ultraviolet shielding materials, in particular to a preparation method of a cerium oxide-based nano-ultraviolet shielding material doped with fluorine ions and metal ions, specifically by simultaneously doping fluorine ions and metal ions in the preparation process. The cerium oxide is doped and modified to obtain an ultraviolet shielding material with excellent performance. technical background [0002] The spectrum range of ultraviolet (UV) radiation in the solar radiation spectrum is between 400-200nm, and its energy accounts for about 6% of the total solar radiation. It can be divided into long-wave ultraviolet UVA (400-320nm), medium-wave ultraviolet UVB ( 320~280nm) and short-wave ultraviolet UVC (280~200nm) in three stages. UVC is blocked and absorbed by the ozone layer and cannot reach the ground. Only UVA and UVB can reach the ground. In recent years, more and more people have discovered the harm of...

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 Applications(China)
IPC IPC(8): C09K3/00B82Y30/00B82Y40/00
Inventor 龙志奇戴艳侯永可黄小卫崔大立赵娜
Owner GRIREM ADVANCED MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com