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Water-soluble rare earth nano material with two-dimensional porous structure, and preparation method and application thereof

A technology of rare earth nanomaterials and porous structure, applied in the field of nanomaterials, can solve the problems of large average size and small specific surface area of ​​rare earth nanomaterials, and achieve the effects of low cost, good water solubility and porous structure

Pending Publication Date: 2021-10-22
CAPITAL NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the method of the literature obtained the specific surface area of ​​rare earth nanomaterials is small (14.87m 2 g -1 ), the average size is larger (300nm)

Method used

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  • Water-soluble rare earth nano material with two-dimensional porous structure, and preparation method and application thereof
  • Water-soluble rare earth nano material with two-dimensional porous structure, and preparation method and application thereof
  • Water-soluble rare earth nano material with two-dimensional porous structure, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1, a kind of water-soluble rare earth nano material MgAlNd-LDO with two-dimensional porous structure, by weight percentage, including 2% rare earth element Nd and non-rare earth element Mg and Al of 98%, diameter is 50-70nm, BET specific surface area, total pore volume and average pore size are about 125.1071m 2 / g, 0.466425cm 3 / g, 14.9128nm.

[0041] The preparation method is as follows:

[0042] S1: the rare earth compound NdCl 3 ·6H 2 O, non-rare earth metal salt MgCl 2 ·6H 2 O, AlCl 3 9H 2 O is dissolved in water to obtain 50mL mixed solution 1 with a molar concentration of 0.3mol / L, wherein the molar ratio of raw materials w = [MgCl 2 ·6H 2 O] / [AlCl 3 9H 2 O] / [NdCl 3 ·6H 2 O]=2:0.95:0.05;

[0043] Prepare 100mL NaOH, Na 2 CO 3 aqueous solution, the molar concentration is 0.15mol / L, wherein, the molar ratio of the two alkalis w=[NaOH] / [NaOH] 2 CO 3 ]=1:1;

[0044] Mix 100mL of the aqueous solutions of the two alkalis with 50mL of mixed...

Embodiment 2

[0053] A water-soluble rare earth nano-material MgAlNd-LDO with a two-dimensional porous structure, by weight percentage, including 2% of rare earth elements Nd and 98% of non-rare earth elements Mg and Al, with a diameter of 100-120nm, BET specific surface area, The total pore volume and average pore size are about 87.8129m 2 / g, 0.201601cm 3 / g, 9.1832nm.

[0054] The preparation method is as follows:

[0055] S1: the rare earth compound NdCl 3 ·6H 2 O, non-rare earth metal salt MgCl 2 ·6H 2 O, AlCl 3 9H 2 O is dissolved in water to obtain 50mL mixed solution 1 with a molar concentration of 0.3mol / L, wherein the molar ratio of raw materials w = [MgCl 2 ·6H 2 O] / [AlCl 3 9H 2 O] / [NdCl 3 ·6H 2 O]=2:0.95:0.05;

[0056] Prepare 100mL NaOH, Na 2 CO 3 aqueous solution, the molar concentration is 0.15mol / L, wherein, the molar ratio of the two alkalis w=[NaOH] / [NaOH] 2 CO 3 ]=1:1;

[0057] Mix 100mL of the aqueous solutions of the two alkalis with 50mL of mixed sol...

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Abstract

The invention provides a water-soluble rare earth nano material with a two-dimensional porous structure and a corresponding preparation method. The water-soluble rare earth nano material is obtained by mixing a widely selected rare earth compound, a non-rare earth metal salt and an alkali solution according to a certain sequence to obtain a solution, carrying out hydrothermal reaction, drying and calcining. The method disclosed by the invention is simple to operate, and experimental conditions in process preparation can be regulated and controlled according to physical and chemical parameters such as aperture, particle size, specific surface area and the like required by a final product, so that the water-soluble rare earth nano material with the two-dimensional porous structure is prepared, wherein the water-soluble rare earth nano material is controllable in size and larger in specific surface area.

Description

technical field [0001] The invention relates to the field of nanomaterials, in particular to a water-soluble rare earth nanomaterial with a two-dimensional porous structure and a preparation method thereof. Background technique [0002] Rare earth nanomaterials are special materials widely used in many fields. They have unique optical, catalytic and magnetic properties and can be used in high-quality phosphors, catalysts and biomedicine. Due to the good biocompatibility and stability of rare earth porous nanomaterials, especially their porous structure with high specific surface area, they can support some catalysts, drugs, aerosols and other substances, and become the carrier of a new generation of animal and plant cells or tissues. Expand the application field of rare earth nanomaterials. [0003] At present, the preparation of rare earth nanomaterials with a porous structure has been reported, and Chinese scholars have made important contributions in this regard. For ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B13/14C01F17/32C01F17/10A61K49/00C02F1/30B82Y40/00
CPCC01B13/14C01F17/32C01F17/10A61K49/0015C02F1/30B82Y40/00C01P2004/24C01P2004/64C01P2004/62C01P2004/61C01P2006/12C01P2006/14C01P2006/16C01P2002/20
Inventor 周晶朱京玉韩鑫
Owner CAPITAL NORMAL UNIVERSITY
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