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Silver ion-doped azo conjugated microporous polymer, preparation method and application

A technology of conjugated micropores and polymers, applied in chemical instruments and methods, water pollutants, water/sludge/sewage treatment, etc., can solve the problem of limited detection and removal of heavy metal ions, dilute concentration of heavy metal wastewater, complex composition, etc. problems, to achieve superior adsorption capacity, good anti-interference ability, good sensitivity and selectivity

Inactive Publication Date: 2018-08-03
JILIN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In view of the low concentration of heavy metal wastewater, complex components, and strict requirements for treatment standards, traditional wastewater treatment technologies have their own advantages and disadvantages.
These characteristics greatly limit the detection and removal of heavy metal ions.

Method used

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  • Silver ion-doped azo conjugated microporous polymer, preparation method and application
  • Silver ion-doped azo conjugated microporous polymer, preparation method and application

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Embodiment 1

[0028] A preparation method of a silver ion-doped azo-conjugated microporous polymer, the specific steps are as follows:

[0029] S1, 1.5mmol of 4-(1,2,2-tris(4-aminophenyl)vinyl)aniline is added in a 250ml flask with 100ml deionized water, and 0.7ml concentration of 36% concentrated hydrochloric acid is added to catalyze , and stirred at 0°C for 15min, then added 30ml of sodium nitrite aqueous solution with a concentration of 0.1mol / L, continued to stir for 25min, then added saturated sodium carbonate solution to adjust the solution to neutrality to obtain a mixture, and mixed the mixture at 0°C with 30ml of phloroglucinol aqueous solution with a concentration of 0.07mol / L and 30ml of aqueous sodium carbonate solution with a concentration of 0.1mol / L were mixed and reacted for 12h. After the reaction, the solid sample was separated from the reaction solution by filtration, followed by water, methanol and A THF wash sequence was used to wash the solid samples, followed by lyop...

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Abstract

The invention discloses a silver ion-doped azo conjugated microporous polymer, a preparation method and application, which belong to the technical field of polymer material preparation. Specifically,with 4-(1,2,2-tri(4-aminophenyl)vinyl)aniline and phloroglucinol as comonomers, under the catalysis of concentrated hydrochloric acid, coupling is carried out by diazo-coupling reaction, silver ions are then loaded, and thereby the silver ion-doped azo conjugated microporous polymer is prepared. The polymer prepared by the invention shows excellent adsorption capability on iodine molecules, moreover, the performance of the polymer is excellent in aspects such as detecting heavy metal ions Cu<2+>, Hg<2+>, Cr<3+> and Ni<2+>, and the polymer has potential application value in fields such as iodine adsorption and heavy metal ion detection.

Description

technical field [0001] The invention belongs to the technical field of polymer material preparation, and in particular relates to a silver ion-doped azo-conjugated microporous polymer, a preparation method and an application. Background technique [0002] In order to meet the development of human society, human demand for clean and safe energy without greenhouse gas emissions is growing rapidly. While nuclear energy is considered an efficient, non-carbon-emitting source of power, the urgent issue behind nuclear products is the radioactive nuclear waste that endangers human health from uranium nuclear fission. Nuclear waste contains volatile radionuclides such as 129 I, 131 I, 3 H and 85 Kr. Of particular note is the radionuclide iodine, which has a length of 1.57×10 7 Years radioactive half-life, which has aroused widespread concern in the energy community. Therefore, to facilitate the development of nuclear energy, efficient capture and storage of radioactive iodine ...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F101/20C02F101/12
CPCB01J20/0233B01J20/265C02F1/285C02F2101/12C02F2101/20
Inventor 许彦红姚婵徐广娟柳志学刘洺含
Owner JILIN NORMAL UNIV
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