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2D (Two-Dimensional) cadmium coordination polymer-iodine vapor loaded material as well as preparation method and application thereof

The technology of a cadmium coordination polymer and a loaded material is applied in the field of complex preparation, which can solve the problems of low-efficiency recovery and expensive materials, and achieve the effects of low cost, good repeatability and simple process

Active Publication Date: 2019-03-01
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide a kind of 2D cadmium coordination polymer iodine vapor load material and its preparation method and application, solve the problem of existing capture I 2 Problems with expensive materials and inefficient recovery

Method used

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  • 2D (Two-Dimensional) cadmium coordination polymer-iodine vapor loaded material as well as preparation method and application thereof
  • 2D (Two-Dimensional) cadmium coordination polymer-iodine vapor loaded material as well as preparation method and application thereof
  • 2D (Two-Dimensional) cadmium coordination polymer-iodine vapor loaded material as well as preparation method and application thereof

Examples

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Embodiment 1

[0039] A preparation method of a 2D cadmium coordination polymer iodine vapor loading material, comprising the following steps:

[0040] 1) According to the molar ratio of cadmium nitrate, thiophene-2,5-dicarboxylic acid and DMA as the ratio of 10:10:1, weigh 61.7mg cadmium nitrate, namely 0.2mmol cadmium nitrate, 34.4mg thiophene-2,5-dicarboxylic acid Carboxylic acid is 0.2mmol thiophene-2,5-dicarboxylic acid and 10mL DMA solution is 0.02mmolDMA;

[0041] 2) dissolving cadmium nitrate in the DMA solution, moving the solution into the reactor, and then adding thiophene-2,5-dicarboxylic acid into the reactor;

[0042] 3) Seal the reaction kettle, keep the temperature at 393K for 48 hours, then slowly cool to room temperature, filter and wash with DMA solution to obtain colorless transparent strip crystals, which are Cd coordination polymers.

[0043] This example uses thiophene-2,5-dicarboxylic acid as a ligand and cadmium nitrate to obtain a coordination polymer of cadmium th...

Embodiment 2

[0045] A preparation method of a 2D cadmium coordination polymer iodine vapor loading material, comprising the following steps:

[0046] 1) According to the molar ratio of cadmium nitrate, thiophene-2,5-dicarboxylic acid and DMA as the ratio of 10:10:1, weigh 123.4mg cadmium nitrate, namely 0.4mmol cadmium nitrate, 68.8mg thiophene-2,5-dicarboxylic acid Carboxylic acid is 0.4mmol thiophene-2,5-dicarboxylic acid and 20mL DMA solution is 0.04mmol DMA;

[0047] 2) dissolving cadmium nitrate in the DMA solution, moving the solution into the reactor, and then adding thiophene-2,5-dicarboxylic acid into the reactor;

[0048] 3) Seal the reaction kettle, keep the temperature at 393K for 48 hours, then slowly cool to room temperature, filter and wash with DMA solution to obtain colorless transparent strip crystals, which are Cd coordination polymers.

[0049] This example uses thiophene-2,5-dicarboxylic acid as a ligand and cadmium nitrate to obtain a cadmium coordination polymer thr...

Embodiment 3

[0051] A preparation method of a 2D cadmium coordination polymer iodine vapor loading material, comprising the following steps:

[0052] 1) According to the molar ratio of cadmium nitrate, thiophene-2,5-dicarboxylic acid and DMA is 10:10:1, weigh 92.55mg cadmium nitrate, namely 0.3mmol cadmium nitrate, 51.6mg thiophene-2,5-dicarboxylic acid Carboxylic acid is 0.3mmol thiophene-2,5-dicarboxylic acid and 15mL DMA solution is 0.03mmol DMA;

[0053] 2) Dissolving cadmium nitrate in DMA solution, moving the solution into a glass bottle, and then adding thiophene-2,5-dicarboxylic acid into the glass bottle;

[0054] 3) Seal the glass bottle, keep the temperature at 393K for 48 hours, then slowly cool to room temperature, filter and wash with DMA solution to obtain colorless transparent strip crystals, which are Cd coordination polymers.

[0055] This example uses thiophene-2,5-dicarboxylic acid as a ligand and cadmium nitrate to obtain a cadmium coordination polymer through a solvo...

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Abstract

The invention discloses a 2D (Two-Dimensional) cadmium coordination polymer-iodine vapor loaded material as well as a preparation method and application thereof, and belongs to the technical field ofcoordination compound preparation. The 2D cadmium coordination polymer-iodine vapor loaded material is prepared by taking thiophene-2,5-dicarboxylic acid as a ligand and enabling the ligand to react with Cd<2+> soluble salt. A chemical formula of the 2D cadmium coordination polymer-iodine vapor loaded material is [Cd6(tdc)3(DMA)6(H2O)2].5DMA.26H2O, wherein tdc is the thiophene-2,5-dicarboxylic acid, and DMA is N,N-dimethylacetamide. The 2D cadmium coordination polymer-iodine vapor loaded material prepared through the preparation method disclosed by the invention has a function of quickly capturing and releasing iodine vapor, the capturing capacity of the iodine vapor is larger, and the 2D cadmium coordination polymer can be used as an iodine vapor loading material.

Description

technical field [0001] The invention belongs to the technical field of complex preparation, and in particular relates to a 2D cadmium coordination polymer iodine vapor loading material and a preparation method and application thereof. Background technique [0002] Nuclear power is a clean and reliable source of energy that meets growing global energy needs. Therefore, proper management of nuclear waste has become a major safety issue in nuclear power production. As we all know, 129 I and 131 I is an important radioactive isotope in nuclear waste. 129 I is a hazardous species with a relatively long half-life (1.57×107 years) and is bioaccumulative, so it must be captured and reliably stored by effective means. although 131 I is a short-lived (half-life of 8.02 days) radionuclide, but due to its direct impact on human metabolic processes due to its high volatility, 131 The immediate capture of I is still necessary. Current I 2 Capture technologies mainly rely on natura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00G21F9/02
CPCC08G83/008G21F9/02
Inventor 殷政史碧波王策李茜窈马维敏张星曜
Owner SHAANXI UNIV OF SCI & TECH