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A kind of mil-100(fe) antibiotic adsorption material doped with divalent cations and its preparation and application

A technology of adsorption materials and divalent metal ions, which is applied in the field of antibiotic removal, can solve the problems of poor recyclability, few types of antibiotics, and the adsorption performance needs to be improved, and achieve the effect of high-efficiency adsorption and large specific surface area

Active Publication Date: 2022-06-24
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still some deficiencies, such as the Chinese invention patent application with the application publication number CN 106423064A, the adsorbent applied for has a certain adsorption effect on antibiotics, but the recovery process of the adsorbent is loaded down with trivial details, the recyclability is poor, and the adsorption performance remains to be seen. improve; secondly, the use of MOFs to adsorb antibiotics is less, and the research is mostly tetracyclines (application publication number is CN 109021244A, application publication number is CN 108940211A, etc.); moreover, when the antibiotics in the water body are mainly adsorbed by MOFs, regeneration Poor repetition rate

Method used

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  • A kind of mil-100(fe) antibiotic adsorption material doped with divalent cations and its preparation and application
  • A kind of mil-100(fe) antibiotic adsorption material doped with divalent cations and its preparation and application
  • A kind of mil-100(fe) antibiotic adsorption material doped with divalent cations and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Synthesis of MIL-100(Fe) doped with zinc ions: Weigh ferric nitrate, zinc sulfate and 1,3,5-benzenetricarboxylic acid in a certain molar ratio in a beaker, add distilled water, wherein ferric nitrate, zinc sulfate, 1, The molar ratio of 3,5-benzoic acid and water is 0.5:0.5:0.67:X (X=55-280), and stirring is transferred to the reactor for a period of time, and the temperature is 150~170 ℃, and the hydrothermal reaction 11 ~13h. The prepared materials were washed with water and ethanol respectively, and the incompletely reacted ferric nitrate, zinc sulfate and 1,3,5-benzenetricarboxylic acid were removed, and then dried.

[0056] The different MOF adsorption materials in Table 1 were synthesized according to the similar steps of this case:

[0057] For example, during the synthesis of MIL-100(Fe), compared to doped Zn 2+ The only difference in the preparation process of MIL-100(Fe) is that the zinc sulfate is not added.

[0058] Zn only 2+ MIL-100, compared to doped ...

Embodiment 2

[0068] Synthesis of MIL-100(Fe) doped with magnesium ions: Weigh ferric nitrate, magnesium sulfate and 1,3,5-benzenetricarboxylic acid in a certain molar ratio in a beaker, add distilled water, wherein ferric nitrate, magnesium sulfate, 1, The molar ratio of 3,5-benzoic acid and water is 0.5:0.5:0.67:X (X=55-280), and stirring is transferred to the reactor for a period of time, and the temperature is 150~170 ℃, and the hydrothermal reaction 11 ~13h. The prepared materials were washed with water and ethanol respectively, and the incompletely reacted ferric nitrate, magnesium sulfate and 1,3,5-benzenetricarboxylic acid were removed, and then dried.

[0069] The magnesium ion-doped MIL-100(Fe) synthesized by the above method was used as the adsorbent to treat aqueous solutions containing different antibiotics. Weigh 0.2000g of MIL-100(Fe) doped with magnesium ions into a centrifuge tube, add 5mL of 100mg / L antibiotic solution, stand for adsorption for 60min, take out and filter,...

Embodiment 3

[0073] Synthesis of MIL-100(Fe) doped with copper ions: Weigh ferric nitrate, copper sulfate and 1,3,5-benzenetricarboxylic acid in a certain molar ratio in a beaker, add distilled water, wherein ferric nitrate, copper sulfate, 1, The molar ratio of 3,5-benzoic acid and water is 0.5:0.5:0.67:X (X=55-280), and stirring is transferred to the reactor for a period of time, and the temperature is 150~170 ℃, and the hydrothermal reaction 11 ~13h. The prepared materials were washed with water and ethanol respectively, and the incompletely reacted ferric nitrate, copper sulfate and 1,3,5-benzenetricarboxylic acid were removed, and then dried.

[0074]The copper ion-doped MIL-100(Fe) synthesized by the above method was used as the adsorbent to treat aqueous solutions containing different antibiotics. Weigh 0.2000g of MIL-100(Fe) doped with copper ions into a centrifuge tube, add 5mL of 100mg / L antibiotic solution, stand for adsorption for 60min, take out and filter, analyze the concen...

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Abstract

The invention belongs to the field of antibiotic adsorption, and specifically discloses an application of a bimetallic organic framework material in the adsorption of antibiotics. In addition, the present invention also provides an antibiotic adsorption material, which comprises MIL-100(Fe) doped with divalent cations; said divalent cations are Zn 2+ , Mg 2+ 、Cu 2+ at least one of the The invention also discloses the preparation, application and regeneration method of the antibiotic adsorption material. The antibiotic adsorption material of MIL‑100 (Fe) doped with divalent cations reported by the present invention is used for adsorption of antibiotics, especially for adsorption of cephalosporin antibiotics, and the effect is remarkable. The antibiotic adsorption material has stable performance, good adsorption effect, regenerability, simple preparation process, low cost and simple operation, and has good application prospect.

Description

technical field [0001] The invention mainly relates to the synthesis of a new MIL-100 (Fe) material doped with divalent cations and the adsorption application of antibiotics, belonging to the field of antibiotic removal. [0002] technical background [0003] Antibiotics are a class of secondary metabolites with anti-pathogen or other activities produced by microorganisms or higher animals and plants in the process of life, and are widely used in medicine, animal husbandry and aquaculture industries. In recent years, due to the extensive use of antibiotics, it has caused potential harm to human health and the environment. Such as: super bacteria, bacterial resistance, environmental pollution, etc. Therefore, the removal of antibiotics has attracted more and more researchers' attention. [0004] The adsorption method is simple, low cost, safe, and has high pollutant removal efficiency, and has been widely used in the removal of antibiotics. Commonly used adsorption materials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22C02F1/28B01J20/30C02F101/30
CPCB01J20/226C02F1/285C02F2101/30
Inventor 何凤姣苏玲玲
Owner HUNAN UNIV
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