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Resin-based nano-lanthanum material and preparation method and application thereof

A resin-based, nanotechnology, applied in separation methods, nanotechnology, nanotechnology, etc., can solve the problems of poor uniformity and stability of nano-lanthanum composite materials, achieve uniform distribution of lanthanum nanoparticles, avoid channel blockage, and distribute nanoparticles uniform effect

Active Publication Date: 2020-01-14
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present inventors have developed new compositions containing rare earth elements like cerium and europa, called “Ln” particles, dispersed throughout polymer matrices made up of organosilane monomers. These mixtures improve performance without compromising their properties such as absorbency, catalyst activity, etc., while maintaining good particle size distributions within each phase. They use various techniques including solvent extraction and filtration processes to achieve evenly distribute these metal atoms around the matrix structure. Additionally, they demonstrate stable storage over long periods of time and reduced environmental impact associated with preparing them. Overall, these technical results lead to better control over the composition' s characteristics, resulting in greater benefits for applications involving refrigerators.

Problems solved by technology

This patented technical problem addressed in these documents relating to improving the use of nanoparticles made up of various metastable elements like iron and calcium in catalyst applications due to their unique properties including excellent activity towards acid reactions, solubility, compatibility with different types of chemical substances, and resistance against corrosion caused by acids.

Method used

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  • Resin-based nano-lanthanum material and preparation method and application thereof
  • Resin-based nano-lanthanum material and preparation method and application thereof
  • Resin-based nano-lanthanum material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0054] A preparation method of a resin-based nanometer hydrated lanthanum oxide material, the steps of which are as follows:

[0055] 1) if figure 1 As shown, concentrated hydrochloric acid with a concentration of 12mol / L was added to ethanol to prepare a 1M HCl ethanol solution, and 20g LaCl 3 Dissolve in 200mL 1M HCl ethanol solution, add 10g D-201 resin, stir at 25°C for 16h;

[0056] 2) filtering the above resin to obtain a resin product A that combines lanthanum in an ion exchange manner;

[0057] 3) Add product A to 200mL of 15% NaOH, stir at 25°C for 10h, filter out the resin, which is product B;

[0058] 4) Wash the product B until neutral, add 200mL of 5% NaCl solution, stir for 4 hours, filter out the resin, and dry it in an oven at 50°C to obtain a resin-based nano-lanthanum material—a hydrated lanthanum oxide-201 material.

[0059] The material that present embodiment makes is spherical, and diameter 0.3-1.0mm, as figure 2 As shown in a, the nanoparticle size ...

Embodiment 2

[0078] A preparation method of resin-based nanometer hydrated lanthanum carbonate material, the steps are as follows:

[0079] 1) Add concentrated hydrochloric acid with a concentration of 10mol / L into ethanol to prepare 1M HCl ethanol solution, and 10g LaCl 3 Dissolve in 200mL 1M HCl ethanol solution, add 10g D-201 resin, stir at 50°C for 12h;

[0080] 2) filtering the above resin to obtain a resin product A that combines lanthanum in an ion exchange manner;

[0081] 3) Add product A to 200mL 2M NH 4 HCO 3 In the solution, after stirring at 50°C for 8 hours, filter out the resin, which is the product B;

[0082] 4) Wash the product B until neutral, add 5% NaCl solution, stir for 4 hours, filter out the resin, and dry it in an oven at 50°C to obtain the resin-based nano-lanthanum material—a hydrated lanthanum carbonate-201 material.

[0083] The material obtained in this embodiment is spherical, with a diameter of 0.3-1.0mm. After digestion, its lanthanum load is measured ...

Embodiment 3

[0097] A preparation method of a resin-based nanometer hydrated lanthanum oxide material, the steps of which are as follows:

[0098] 1) Add concentrated hydrochloric acid with a concentration of 11-12mol / L into ethanol to prepare a 1M HCl ethanol solution, and add 5gLaCl 3 Dissolve in 200mL 1M HCl ethanol solution, add 5g D-201 resin, stir at 25°C for 12h;

[0099] 2) filtering out the above-mentioned resin to obtain a resin product A in which lanthanum is bound in an ion-exchange manner;

[0100] 3) Add a small amount of product A to 200mL 10% NaOH solution several times, stir at 25°C for 8 hours, filter out the resin, and obtain product B;

[0101] 4) Wash the product B until neutral, add 5% NaCl solution, stir for 4 hours, filter out the resin, and dry it in an oven at 50°C to obtain a resin-based nano-lanthanum material—a hydrated lanthanum oxide-201 material.

[0102] The material obtained in this embodiment is spherical, with a diameter of 0.3-1.0mm. After digestion, ...

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Abstract

The invention discloses a resin-based nano-lanthanum material and a preparation method and application thereof, and belongs to the field of environmentally functional materials. The preparation methodincludes the following steps: 1) dissolving lanthanum chloride heptahydrate and concentrated hydrochloric acid in alcohol, performing mixing, adding a resin polymer, and performing stirring at room temperature; 2) filtering the resin after completion of stirring, and performing drying; 3) adding the resin to a precipitant solution, and performing stirring at room temperature so as to filter out the resin; and 4) washing the product by using water until neutrality, adding a NaCl solution, performing stirring, filtering out the resin, and performing drying so as to obtain the resin-based nano-lanthanum material. Lanthanum is mixed with hydrochloric acid so as to make lanthanum and chloride ions form complex anions, lanthanum in the form of complex anions in alcohol is uniformly adsorbed into anion exchange resin pore channels, then the nano-lanthanum compound is further generated in situ, and the prepared nano lanthanum particles have more uniform distribution, and have a high phosphorus adsorption rate.

Description

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Claims

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Application Information

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Owner NANJING UNIV
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