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Rare earth ion doped nano calcium carbonate luminescent material with different morphologies and preparation method and application thereof

A kind of nano calcium carbonate, technology of luminescent material

Active Publication Date: 2021-02-05
湖北丰源钙业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of nano-calcium carbonate luminescent material with different shapes doped with rare earth ions and its preparation for the problems of expensive raw materials, high equipment requirements, high energy consumption, and unsuitability for industrialized large-scale production of the current luminescent materials. Methods and Applications

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  • Rare earth ion doped nano calcium carbonate luminescent material with different morphologies and preparation method and application thereof
  • Rare earth ion doped nano calcium carbonate luminescent material with different morphologies and preparation method and application thereof
  • Rare earth ion doped nano calcium carbonate luminescent material with different morphologies and preparation method and application thereof

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Embodiment 1

[0039] A kind of fibrous nano-calcium carbonate material not doped with rare earth ions in this embodiment, said nano-calcium carbonate material adopts the natural limestone produced in Huangshi, Hubei without any modification treatment as the calcium source, and then controls the calcium carbonate through the crystal nucleus. prepared by the carbonization reaction process, wherein the mass percentage of each component in natural limestone is: CaO 55.10%, SiO 2 0.07%, Al 2 o 3 0.02%, Fe 2 o 3 0.03%, MgO 0.08%; crystal nucleation control agent is ammonium citrate.

[0040] A kind of preparation method of the fibrous nano-calcium carbonate material that is not doped with rare earth ions of the present embodiment, comprises the following steps:

[0041] (1) Decomposition of natural limestone

[0042] The raw limestone ore was cleaned and crushed, passed through a 40-mesh sieve, and placed in a muffle furnace for calcination at 950 °C for 2 h to obtain CaO powder.

[0043...

Embodiment 2

[0051] A kind of use rare earth ion Tb of the present embodiment 3+ The elliptical sheet-shaped nano-calcium carbonate luminescent material prepared by regulation and control, the luminescent material is the natural limestone produced in the Huangshi area of ​​Hubei Province without any modification treatment as the calcium source, and then the rare earth ion Tb 3+ It is prepared by introducing into the crystal lattice of synthetic nano-calcium carbonate. The ratio of rare earth ions to calcium ions is 0.04:1; the mass percentage of each component in natural limestone is: CaO 55.10%, SiO 2 0.07%, Al 2 o 3 0.02%, Fe 2 o 3 0.03%, MgO 0.08%, and the rest are ignition loss, the sum of the mass fractions of each component is 100%; the rare earth ions are composed of Tb(NO 3 ) 3 ·6H 2 O (99.9%) dissolved in water to form a solution of rare earth ions provided.

[0052] A kind of use rare earth ion Tb of the present embodiment 3+ The preparation method of the elliptical fla...

Embodiment 3

[0063] A kind of using rare earth ion Eu of the present embodiment 3+ Spindle-shaped nano-calcium carbonate luminescent material prepared by regulation and control. The luminescent material uses natural limestone produced in the Huangshi area of ​​Hubei Province without any modification as a calcium source, and then in the carbonization reaction process, the rare earth ion Eu 3+ It is prepared by introducing into the crystal lattice of synthetic nano-calcium carbonate. The ratio of rare earth ions to calcium ions is 0.04:1; the mass percentage of each component in natural limestone is: CaO 55.10%, SiO 2 0.07%, Al 2 o 3 0.02%, Fe 2 o 3 0.03 %, MgO 0.08 %; rare earth ions composed of Eu(NO3 ) 3 ·6H 2 O (99.9%) dissolved in water to form a solution of rare earth ions provided.

[0064] A kind of using rare earth ion Eu of the present embodiment 3+ The preparation method of the spindle-shaped nano-calcium carbonate luminescent material prepared by regulation and control ...

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Abstract

The invention relates to a rare earth ion doped nano calcium carbonate luminescent material with different morphologies and a preparation method and application thereof, and the luminescent material is prepared by taking natural limestone which is not subjected to any modification treatment as a calcium source and introducing rare earth ions into crystal lattices of synthesized nano calcium carbonate in a carbonization reaction process. The mass ratio of rare earth ions to Ca < 2 + > in the luminescent material is (0.001-0.06): 1; according to the invention, natural limestone is used as a calcium source, the reserves are rich, the cost is reduced, and the additional value of natural minerals is improved; the preparation method is simple in process, low in energy consumption and suitable for industrial production and application; by doping different rare earth ions in the carbonization crystallization process, the morphology of nano calcium carbonate can be changed, luminescent materials with different colors can be obtained at the same time, and the material is a light conversion material with good luminescent characteristics and stability, is applied to the field of optics, and ismainly combined with a near ultraviolet LED chip to prepare a white light LED with high luminescent performance.

Description

technical field [0001] The invention relates to the technical field of nanometer materials and rare earth luminescent materials, in particular to a nanometer calcium carbonate luminescent material with different shapes doped with rare earth ions and its preparation method and application. Background technique [0002] Nano-calcium carbonate is used as filling, toughening, whitening, oil-absorbing, and sterilization materials in papermaking, rubber, paint, coating, medicine, cosmetics, feed and other industries. It is one of the most dynamic environmental protection and green mineral resources in the 21st century. However, the current nano-calcium carbonate material has a single shape and insufficient functionality, which cannot meet the market's demand for functionalized nano-calcium carbonate with various shapes. The ultra-fine, specialized and functionalized nano-calcium carbonate has become the development trend of the calcium carbonate industry. Rare earth-doped nano-ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/65B82Y30/00B82Y40/00C01F11/18H01L33/50
CPCC09K11/7731C09K11/7746C09K11/7734C09K11/7749B82Y30/00B82Y40/00C01F11/183H01L33/502C01P2004/62C01P2002/72C01P2004/03C01P2004/54Y02B20/00
Inventor 陈凤张青张海松张友佳邝子尧
Owner 湖北丰源钙业科技有限公司
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