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Adsorbent for removing radioactive iodine ions and application of adsorbent

A technology of radioactive iodine and adsorbent, which is applied in the direction of radioactive pollutants, adsorption of water/sewage treatment, and other chemical processes, can solve the problem of low adsorption efficiency of adsorbents, and achieve increased quantity, high adsorption efficiency, and exact adsorption Effect

Active Publication Date: 2020-02-18
NANCHANG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The present invention aims at the technical defects of the prior art, and provides an adsorbent for removing radioactive iodine ions and its application, so as to solve the technical problem of low adsorption efficiency of conventional iodine ion adsorbents in the prior art

Method used

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  • Adsorbent for removing radioactive iodine ions and application of adsorbent
  • Adsorbent for removing radioactive iodine ions and application of adsorbent
  • Adsorbent for removing radioactive iodine ions and application of adsorbent

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Embodiment Construction

[0031] Specific embodiments of the present invention will be described in detail below. In order to avoid too many unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. Approximate language used in the following examples is for quantitative representations, indicating that certain variations in quantities are permissible without altering essential function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0032] An adsorbent for the removal of radioactive iodide ions prepared by:

[0033] (1) Weigh 3g of titanium carbide powder into a 100ml polytetrafluoroethylene-lined reaction kettle, add 80ml of hydrofluoric acid (>40%) dropwise, stir continuously during the dropwise addition, then sonicate for 1min, and react at 60°C After 48 hours, centrifuge at 6000r / min...

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Abstract

The invention provides an adsorbent for removing radioactive iodine ions and application of the adsorbent. According to the technical scheme, titanium carbide powder and dopamine are used as main rawmaterials; the titanium carbide powder is etched by hydrofluoric acid to complete large-scale layering so as to form an MXene material; then dopamine monomers are subjected to self-polymerization on the surface of the MXene by combining a mussel bionic mode to complete surface modification of the two-dimensional layered MXene material; and the modified MXene material is used for carrying silver oxide nano particles. A preparation method has a simple process and is convenient to operate, and the prepared MXene adsorbent has a large specific surface area, a large amount of active sites and highstability. Experimental verification shows that the maximum adsorption amount of iodine ions in a solution can reach 80.85 mg / g, and the removal rate of iodine ions can reach about 80%. Therefore, theadsorption effect of the adsorbent on iodine ions is exact and effective, adsorption efficiency is high, and a new way is provided for removal of radioactive iodine.

Description

technical field [0001] The invention relates to the technical field of environmental materials, in particular to an adsorbent for removing radioactive iodine ions and an application thereof. Background technique [0002] Radioactive iodine refers to radioactive isotopes of iodine, mainly including 129 I. 131 I. 123 I. 124 I and 125 I and so on. As one of the products of nuclear fission, radioactive iodine widely exists in the waste liquid of nuclear fission. 131 The form I exists with a half-life ranging from 8.04 days to 1.57×10 7 It can flow in natural water bodies, and if not treated, it will enter aquatic environments such as oceans, rivers, and groundwater; in addition, radioactive iodine is also widely used in medical fields, such as 131 I is used to treat hyperthyroidism and thyroid cancer, 125 I is used for thyroid tumor biopsy, thyroid scan and radioimmunoassay, etc. Radioactive iodine is extremely harmful to the human body. Accumulation in the human body m...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28
CPCB01J20/262B01J20/28011B01J20/28033B01J20/28057C02F1/285C02F1/281C02F2101/006
Inventor 周耐根张小勇沙学丰刘美英
Owner NANCHANG UNIV
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