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NH2-MIL-88B (Fe)@TpCp-COFs core-shell composite photo-Fenton catalyst and preparation method thereof

A composite light and catalyst technology, applied in the field of photocatalysis, to achieve the effect of improving separation efficiency, high catalytic activity, and mild reaction conditions

Pending Publication Date: 2021-12-28
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims at the technical problem existing in the prior art, provides a kind of NH 2 -MIL-88B(Fe)@TpCp-COFs core-shell composite photo-Fenton catalyst and its preparation method, selected Fe-MOFs material suitable for photo-Fenton reaction [NH 2 -MIL-88B(Fe)], and a NH 2 -MIL-88B(Fe)@TpCp-COFs core-shell high-efficiency composite photo-Fenton catalyst, the process is relatively simple, the reaction conditions are relatively mild, and the prepared product has high catalytic activity under visible light, which is very useful for using solar energy to solve the pollution of antibiotics in water The problem has significant reference significance

Method used

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  • NH2-MIL-88B (Fe)@TpCp-COFs core-shell composite photo-Fenton catalyst and preparation method thereof
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  • NH2-MIL-88B (Fe)@TpCp-COFs core-shell composite photo-Fenton catalyst and preparation method thereof

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Embodiment 1

[0025] Embodiments of the present invention provide a kind of NH 2 -The preparation method of MIL-88B(Fe)@TpCp-COFs core-shell composite photo-Fenton catalyst, comprising the following steps:

[0026] S1: Take FeCl 3 ·6H 2 O (Sinopharm Chemical Reagent Co., Ltd., the same below), poloxamer (Aladdin Biochemical Technology Co., Ltd., the same below), glacial acetic acid (Aladdin Biochemical Technology Co., Ltd., the same below), 2-amino-p-benzene Diformic acid (Bailingwei Technology Co., Ltd., the same below) was fully dissolved in 65 mL of deionized water, and then placed in a polytetrafluoroethylene-lined hydrothermal reaction kettle. Among them, the iron ion concentration was 45mmol / L; the poloxamer concentration was 10.7g / L; the glacial acetic acid concentration was 21g / L; the 2-aminoterephthalic acid concentration was 21.7mmol / L. Put the hydrothermal reaction kettle in a forced air drying oven and keep it warm at 100°C for 20 hours. After the reaction, take out the hydro...

Embodiment 2

[0033] Embodiments of the present invention provide a kind of NH 2 -The preparation method of MIL-88B(Fe)@TpCp-COFs core-shell composite photo-Fenton catalyst, comprising the following steps:

[0034] S1: Take FeCl 3 ·6H 2 O, poloxamer, glacial acetic acid and 2-aminoterephthalic acid were fully dissolved in 65 mL of deionized water, and placed in a polytetrafluoroethylene-lined hydrothermal reaction kettle. Among them, the iron ion concentration was 45mmol / L; the poloxamer concentration was 10.7g / L; the glacial acetic acid concentration was 21g / L; the 2-aminoterephthalic acid concentration was 21.7mmol / L. Put the hydrothermal reaction kettle in a forced air drying oven and keep it warm at 100°C for 22 hours. After the reaction, take out the hydrothermal reaction kettle and cool it to room temperature naturally, and wash the product in it with N,N-dimethylformamide. After filtering, place it in a vacuum oven at 60°C and dry it to constant weight to obtain NH 2 - MIL-88B(Fe...

Embodiment 3

[0041] Embodiments of the present invention provide a kind of NH 2 -The preparation method of MIL-88B(Fe)@TpCp-COFs core-shell composite photo-Fenton catalyst, comprising the following steps:

[0042] S1: take FeCl 3 ·6H 2 O, poloxamer, glacial acetic acid and 2-aminoterephthalic acid were fully dissolved in 65 mL of deionized water, and placed in a polytetrafluoroethylene-lined hydrothermal reaction kettle. Among them, the iron ion concentration was 45mmol / L; the poloxamer concentration was 10.7g / L; the glacial acetic acid concentration was 21g / L; the 2-aminoterephthalic acid concentration was 21.7mmol / L. Put the hydrothermal reaction kettle in a forced air drying oven and keep it warm at 100°C for 23 hours. After the reaction, take out the hydrothermal reaction kettle and cool it to room temperature naturally, and wash the product in it with N,N-dimethylformamide. After filtering, place it in a vacuum oven at 60°C and dry it to constant weight to obtain NH 2 - MIL-88B(Fe...

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Abstract

The invention provides a preparation method of an NH2-MIL-88B (Fe)@TpCp-COFs core-shell composite photo-Fenton catalyst. The method comprises the following steps: dispersing an NH2-MIL-88B (Fe) nanorod and trialdehyde phloroglucinol in tetrahydrofuran to obtain a solution A; fully dispersing p-phenylenediamine in tetrahydrofuran to obtain a solution B; slowly adding the solution B into the solution A; putting the mixed solution into a hydrothermal reaction kettle lined with polytetrafluoroethylene, putting the hydrothermal reaction kettle into a forced air drying oven, and carrying out heat preservation; and taking out the hydrothermal reaction kettle from the drying oven, naturally cooling to room temperature, fully washing the product in the hydrothermal reaction kettle with tetrahydrofuran, filtering, and drying in a vacuum drying oven until the weight is constant to obtain the product. The invention further discloses the NH2-MIL-88B (Fe)@TpCp-COFs core-shell composite photo-Fenton catalyst prepared by the method. According to the invention, the NH2-MIL-88B (Fe)@TpCp-COFs core-shell efficient composite photo-Fenton catalyst is prepared, the process is relatively simple, the reaction conditions are relatively mild, and the prepared product has high catalytic activity under visible light and has remarkable reference significance for solving the problem of antibiotic pollution in water by utilizing solar energy.

Description

technical field [0001] The invention belongs to the technical field of photocatalysis, in particular to a kind of NH 2 -MIL-88B(Fe)@TpCp-COFs core-shell composite photo-Fenton catalyst and its preparation method. Background technique [0002] With the development of cities and the increase of population, the widespread use of industrial organic dyes and agricultural chemicals has made environmental pollution, especially water pollution, increasingly prominent, which has directly or indirectly affected people's health and has become a hot issue of concern to the whole society. . Among many water pollutant treatment technologies, photo-Fenton catalytic oxidation technology has attracted much attention because of its mild reaction conditions and relatively complete degradation. It produces a series of highly reactive free radicals through the interaction of catalysts, hydrogen peroxide and light, so as to achieve the purpose of degrading organic pollutants in water bodies, an...

Claims

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Application Information

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IPC IPC(8): B01J31/22B01J35/02C02F1/30C02F1/72C02F101/38
CPCB01J31/2243C02F1/30C02F1/722C02F1/725B01J2531/842C02F2101/38C02F2305/10C02F2305/026B01J35/396B01J35/40B01J35/39
Inventor 吴湘锋常天龙王惠马啸野康业玮樊子豪
Owner SHIJIAZHUANG TIEDAO UNIV
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