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Preparation method of a porous two-dimensional rare earth doped borate nanosheet luminescent material

A technology of rare earth doping and luminescent materials, applied in luminescent materials, nano optics, nanotechnology, etc., can solve the problems of weak van der Waals force, few target products, and impossibility of practical application, and achieve increased effective area and photoelectric conversion efficiency Improvement, the effect of increasing the fluorescence intensity

Inactive Publication Date: 2018-10-16
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The preparation of existing two-dimensional materials is mainly to destroy the very weak van der Waals force between material layers, including liquid phase exfoliation method, lithium ion intercalation method, etc., and the target products obtained are very few, which cannot be used in practical applications.

Method used

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  • Preparation method of a porous two-dimensional rare earth doped borate nanosheet luminescent material
  • Preparation method of a porous two-dimensional rare earth doped borate nanosheet luminescent material
  • Preparation method of a porous two-dimensional rare earth doped borate nanosheet luminescent material

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Effect test

Embodiment 1

[0022] Weigh 0.1002g: YBO 3 : Ce 3+ ,Yb 3+ Body material, added to 100ml concentration (V / V) of 0.2% H 2 SO 4 In the mixed solution of dispersant (ethylene glycol 10mL), the temperature is 20-50°C, ultrasonic treatment is carried out for 2.5 hours while stirring, and it is left to stand for 2 hours. Porous two-dimensional rare earth doped LnBO obtained 3 Nanosheets.

Embodiment 2

[0024] Weigh 0.1001g YBO 3 : Ce 3+ ,Yb 3+ Bulk material, add 100ml concentration (V / V) to the mixed solution of 2% HCl and dispersant (ethylene glycol 10mL), temperature is 20-50 ℃, ultrasonic treatment 2.5h while stirring, stand still 2h, Pour off the supernatant, wash with centrifuge, dry and grind at 80°C to obtain porous two-dimensional rare earth doped LnBO 3 Nanosheets.

Embodiment 3

[0026] Weigh 0.1003g YBO 3 : Ce 3+ ,Yb 3+ Bulk material, added to 100ml concentration (V / V) of 5% HNO 3 and dispersant (ethylene glycol 10mL) in a mixed solution at a temperature of 20-50°C, ultrasonically treat for 2.5h while stirring, let stand for 2h, pour off the supernatant, wash with centrifuge, dry and grind at 80°C, that is Porous two-dimensional rare earth doped LnBO obtained 3 Nanosheets.

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Abstract

The invention relates to a method for preparing a porous two-dimensional rare earth doped borate nanosheet luminescent material. The preparation method involved includes: adding the rare earth doped powder material LnBO3: A, B, C to an acid solution with a dispersant or an organic solvent with a dispersant, and stirring at 20-50°C. The solid obtained after ultrasonic treatment for a reasonable time is a porous two-dimensional rare earth doped LnBO3 nanosheet luminescent material, where: Ln is one of the yttrium elements or lanthanide elements, A, B and C represent different types of rare earth elements, and A , one, two or three of B and C exist; the dispersant is ethylene glycol or glycerol; the acid solution is sulfuric acid solution, nitric acid solution or hydrochloric acid solution; the organic solvent is CH2Cl2 or C5H9NO. The preparation method of the invention has simple process, cheap raw materials and good repeatability.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and relates to a preparation method of a luminescent material, in particular to a porous two-dimensional rare earth doped LnBO 3 Preparation method of nanosheet luminescent material Background technique [0002] LnBO 3 It is a bulk material composed of layered structures composed of Ln atoms and boron-oxygen groups. Due to its excellent thermal and mechanical stability, it has attracted the attention of researchers at home and abroad. Especially because of its perfect crystal structure and cheap and easy-to-obtain raw materials, it becomes a good luminescent host material. Rare earth-doped LnBO with different morphologies were obtained by adjusting the pH value of the solution, the concentration of doping ions, and the species of doping ions. 3 Bulk materials, cheap raw materials, mild conditions and simple method, high yield. [0003] But no one has studied few-layer rare earth ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/78H01L31/055B82Y20/00B82Y30/00
CPCY02E10/52
Inventor 胡晓云苗慧张国伟穆江龙刘曦希韩同信樊君张德恺
Owner NORTHWEST UNIV