Nanofiber gel material with synergistic functions of pollutant adsorption, catalysis and fluorescence tracking and its preparation method

A nanofiber, gel material technology, applied in gel preparation, chemical instruments and methods, fiber chemical characteristics, etc., can solve the problems of poor processing performance, complex process, complex preparation process, etc., to improve strength, achieve protection, Good structural stability

Active Publication Date: 2021-02-26
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nanoscale metal-organic framework materials currently prepared in large quantities are usually granular and have poor processability, making it difficult to combine them with nanofibers to prepare nanofiber gel materials.
Although metal-organic framework nanoparticles can be immobilized on the surface of fibers by in-situ growth, this method is complex and energy-intensive, which limits the application of metal-organic framework materials in gel systems.
Although metal-organic framework materials are currently prepared into nanofibers, the preparation process is relatively complicated.

Method used

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  • Nanofiber gel material with synergistic functions of pollutant adsorption, catalysis and fluorescence tracking and its preparation method
  • Nanofiber gel material with synergistic functions of pollutant adsorption, catalysis and fluorescence tracking and its preparation method
  • Nanofiber gel material with synergistic functions of pollutant adsorption, catalysis and fluorescence tracking and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A 0.01 mol / L europium nitrate solution is configured, and the solvent composition thereof is that the mass ratio of alcohol to water is 1:1 (preferably ethanol). A 0.01 mol / L trimesic acid organic ligand solution is configured, and the solvent composition, alcohol and water mass ratio is 2:1 (preferably ethanol). The prepared metal salt europium nitrate solution and the trimesic acid organic ligand solution were blended at a volume ratio of 1:1, then placed in a water bath shaker at 20°C, and vibrated uniformly for 12 hours to prepare metal-organic framework fibers. The metal-organic framework fibers were placed in silver nitrate solution for adsorption for 30 minutes, taken out for suction filtration, washed, and then put into ethanol for 10 hours of reaction to prepare Eu(BTC)MOFS nanofibers doped with nano-metallic silver particles inside;

[0048] The thermoplastic nanofiber (polyamide) and the Eu(BTC)MOFS nanofiber doped with nano-metallic silver particles are disp...

Embodiment 2

[0058] A 0.1 mol / L europium nitrate solution is configured, and the solvent composition is that the mass ratio of alcohol to water is 1:1 (preferably methanol). A 0.1 mol / L 1,3,5-tris(4-carboxyphenyl)benzene (BTBC) organic ligand solution is prepared, and the solvent composition is an alcohol-water mass ratio of 2:1 (preferably methanol). Blend the prepared metal salt europium nitrate solution and 1,3,5-tris(4-carboxyphenyl)benzene (BTBC) organic ligand solution at a volume ratio of 1:1, and then place it on a water bath shaker at 20°C , prepared Eu(BTBC)MOFS nanofibers by shaking evenly for 12h, placed the Eu(BTBC)MOFS nanofibers in copper sulfate solution for adsorption for 30min, took them out for suction filtration and washing, and then put them into NaHBO 4 Reacting in medium for 5h, the Eu(BTBC)MOFS nanofibers doped with nano metal copper particles inside were prepared;

[0059] Disperse thermoplastic nanofibers (polyamide) and the Eu(BTBC) MOFS nanofibers doped with na...

Embodiment 3

[0062] A 0.15 mol / L europium nitrate solution is prepared, and the solvent composition is that the mass ratio of alcohol to water is 1:1. A 0.15 mol / L nitrilotriacetic acid (NTA) organic ligand solution was prepared, and the solvent composition was that the mass ratio of alcohol to water was 2:1. The prepared metal salt europium nitrate solution and nitrilotriacetic acid (NTA) organic ligand solution were blended at a volume ratio of 1:1, then placed in a water bath shaker at 20°C, and evenly shaken for 12 hours to prepare Eu(NTA) MOFs nanofibers, put the Eu(NTA)MOFs nanofibers in the palladium chloride solution for adsorption for 30min, take out the suction filtration, wash, then put in NaHBO 4 Reacting in medium for 5h, the Eu(NTA)MOFs nanofibers doped with nano metal palladium particles inside were prepared;

[0063] The thermoplastic nanofiber (polyamide) and the Eu(NTA)MOFs nanofiber doped with nano metal palladium particles are dispersed in alcohol water to form a suspe...

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Abstract

The invention discloses a nanofiber gel material with synergistic functions of pollutant adsorption, catalysis and fluorescence tracking and a preparation method thereof, belonging to the technical field of textile materials. The nanofibrous gel material is composed of particle-doped metal-organic framework nanofibers and thermoplastic polymer nanofibers entangled with each other in three-dimensional space through hydrogen bond forces; the specific preparation process is first to prepare internal metal particle-doped The metal-organic framework nanofibers, and then the thermoplastic polymer nanofibers prepared by the melt blending phase separation method, the particle-doped metal-organic framework nanofibers are dispersed in the mixed solvent of organic solvent and water to form a suspension, and then the suspension is coated A nanofiber gel material with the synergistic function of pollutant adsorption-catalysis-fluorescence tracking is obtained by covering the substrate and using freeze-drying technology. The preparation process of the invention is simple, and the prepared material has multiple functions.

Description

technical field [0001] The invention relates to a nanofiber material, which belongs to the technical field of textile materials, in particular to a nanofiber gel material with synergistic functions of pollutant adsorption, catalysis and fluorescence tracking and a preparation method thereof. Background technique [0002] Gel materials have a three-dimensional through-network structure, and have broad application prospects in substance adsorption, storage, heat insulation, and catalytic separation. The skeleton structure of the material is the main carrier for the performance of the gel, and the realization of functional diversification and performance improvement through structure and morphology regulation has become the main way for the development of gel materials. Nanofibers have a large aspect ratio, and the specific surface area of ​​the gel material prepared from it can be significantly improved, thereby enhancing the performance of the material. In recent years, nano...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/00D01F1/10D01F6/94
CPCB01J13/0065D01F1/10D01F6/94
Inventor 刘轲王栋刘迎万雨彩刘琼珍王雯雯李沐芳蒋海青鲁振坦
Owner WUHAN TEXTILE UNIV
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