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Application of two-dimensional transitional metal carbide nanosheet as radionuclide adsorbent

A technology of transition metals and radionuclides, which is applied in the field of two-dimensional transition metal carbides as radionuclide adsorbents, can solve problems such as potential safety hazards and waste of nuclear fuel, and achieve enhanced adsorption capacity, high adsorption capacity, and enhanced selection. Adsorptive effect

Inactive Publication Date: 2016-02-03
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

This invention relates to an improved method or technique that uses nanoporous materials with specific structures to efficiently absorb radioactive substances from water samples containing these compounds. These specialized particles have large surface areas which allow them to hold more than one type of ion but still keep it there permanently without losing its effectiveness over time due to chemical reactions between different types of atoms inside this particle's crystal lattice. By modifying certain elements on the outer layer of the molecule, we aim to enhance their ability to capture radiation safely while also improving upon other properties like solubility.

Problems solved by technology

This patented technical solution describes different ways to recycle or reuse nuclear resources after use without causing environmental concerns like pollution. One way involves creating new types of nanocomposite particles called Nanoparticles, which offer unique advantages over existing technologies due to its ability to absorb radiation safely during reprocessing. Additionally, these NPAs provide important benefits including improved efficiency in extracting rare metals, reducing emissions associated with fossil fuel combustion, preventing dangerous conditions caused by weapons systems, improving the quality of life for individuals who require them, and promoting sustainability through green house construction.

Method used

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  • Application of two-dimensional transitional metal carbide nanosheet as radionuclide adsorbent
  • Application of two-dimensional transitional metal carbide nanosheet as radionuclide adsorbent
  • Application of two-dimensional transitional metal carbide nanosheet as radionuclide adsorbent

Examples

Experimental program
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Effect test

Embodiment 1

[0031] In this embodiment, the MXene material is multilayer Ti 3 C 2 T x (T=F, OH, the same below), and its preparation method is as described in the literature [M.Naguib, etal., Adv.Mater., 2011, 23, 4248]. The multilayer Ti 3 C 2 T x The scanning electron microscope photo as figure 1 shown.

[0032] To test the adsorption performance of the MXene material on Th(IV), the specific steps are as follows:

[0033] (1) with Th(NO 3 ) 4 As a Th(IV) source, dissolve it in ultrapure water to prepare standard solutions of about 20, 40, 60, 100, and 120 mg / L Th(IV) respectively;

[0034] (2) Use a 5ml pipette gun to measure about 10mL of the above standard solution into small glass bottles, numbered 1~5#, and add about 0.01gTi to each bottle 3 C 2 T x As an adsorbent (the amount of adsorbent input is 1g / L), add small magnets;

[0035] (3) adjust each solution pH=3.38~3.42, use plastic wrap to seal bottle mouth, prevent solution from evaporating, open magnetic stirrer, make...

Embodiment 2

[0045] In this example, the MXene material is exactly the same as the material in Example 1, both of which are multilayer Ti 3 C 2 T x (T=F,OH). The multilayer Ti 3 C 2 T x The preparation method is exactly the same as the preparation method in Example 1, and the scanning electron micrograph is as follows figure 1 shown.

[0046] Test the MXene material against U(VI) (in UO 2 2+ Exist in the form), the specific steps are as follows:

[0047] (1) with UO 2 (NO 3 ) 2 As a source of U(VI), dissolve it in ultrapure water to prepare standard solutions of about 20, 40, 60, 80, and 100mg / LU(VI);

[0048] (2) Use a 5ml pipette gun to measure about 10mL of the above standard solution into small glass bottles, numbered 1~5#, and add about 0.01gTi to each bottle 3 C 2 T x As an adsorbent (the amount of adsorbent input is 1g / L), add small magnets;

[0049] (3) adjust the pH of each solution=5.48~5.52, use plastic wrap to seal the bottle mouth, prevent the solution from eva...

Embodiment 3

[0059] In this embodiment, the MXene material is a multilayer V 2 CT x , and its preparation method is as described in the literature [M.Naguib, et al., J.Am.Chem.Soc., 2013, 135, 15966]. The multilayer Ti 3 C 2 T x The scanning electron microscope photo as image 3 shown.

[0060] To test the adsorption performance of the MXene material to U(VI), the specific steps are as follows:

[0061] (1) with UO 2 (NO 3 ) 2 As a source of U(VI), dissolve it in ultrapure water to prepare a standard solution of about 100mg / LU(VI);

[0062] (2) Use a 5ml pipette gun to measure about 10mL of the above standard solution into 5 small glass bottles, numbered 1~5#, and add about 4mgV 2 CT x As an adsorbent (the amount of adsorbent input is 0.4g / L), add small magnets;

[0063] (3) Adjust the pH of 1~5# solution to 2, 3, 4, 5, 6 respectively, seal the bottle mouth with plastic wrap to prevent the solution from evaporating, turn on the magnetic stirrer, and make the adsorbent fully con...

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Abstract

The invention discloses application of a two-dimensional transitional metal carbide nanosheet as a radionuclide adsorbent. Due to the fact that two-dimensional transitional metal carbide nanosheet MXene material has an absorption effect on radionuclide, the two-dimensional transitional metal carbide nanosheet can be utilized as the adsorbent for absorbing radionuclide.Compared with other inorganic nanometer adsorption material, MXene material, featuring a nano layered structure, can effectively increase adsorption capacity of radionuclide. In the meantime, storage space of the adsorbent is greatly reduced due to large density of MXene material.Accordingly, MXene material has potential application value in the field of irradiated fuel reprocessing, control over radioactive pollutants discharged by a nuclear power station, a hospital, a factory and others.

Description

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Claims

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Application Information

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Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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