Phosphorus-removal and antibacterial nanometer fiber membrane and preparing method thereof

A nanofiber membrane, nanotechnology, applied in fiber processing, non-woven fabrics, textiles and papermaking, etc., can solve the problems of complex processing technology, achieve the effect of simple processing technology, simplified water purification process, and good industrialization prospects

Inactive Publication Date: 2019-05-21
CHANGSHA ADVANCED MATERIALS IND RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent 201610104447.2 provides "An Adsorbent for Simultaneously Enhanced Removal of Trace Phosphorus and Organic Matter". The adsorbent is a lanthanum-polyacrylonitrile-based carbon nanofiber material, which uniformly loads nanoscale lanthanum compounds inside and on the surface of carbon nanofibers obtained, the post-processing process after electrospinning is very complicated

Method used

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  • Phosphorus-removal and antibacterial nanometer fiber membrane and preparing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In step a, select a commercially available nano-layered silicate product, sodium montmorillonite-Laponite RD, and activate it by cationic modification. Add 10g of Laponite RD into 100g of deionized water, mix to form a uniform slurry, add 0.2g of hexadecylpyridinium chloride at 80°C, stir and react for 120min, filter the slurry with suction, wash and dry to obtain organic modified The nano-phosphorus adsorbent A. A is configured as tetrahydrofuran dilution B with a mass fraction of 10%.

[0025] Step b. Take 10 g of polyacrylonitrile, dissolve it in N-methylformamide (DMF), and prepare a solution C with a mass fraction of 8% for future use.

[0026] Step c, take 2.5g of diluent B and 62.5g of solution C, and mix the two evenly to obtain spinning solution D. The D solution is injected into the syringe in the high-voltage electrospinning device, and a metal needle is assembled on the syringe, and the metal needle is connected to one pole of the high-voltage power supply...

Embodiment 2

[0030] In step a, select a commercially available nano-layered silicate product, sodium montmorillonite-Laponite RD, and activate it by cationic modification. Add 10g of Laponite RD into 100g of deionized water, mix to form a uniform slurry, add 0.2g of hexadecylpyridinium chloride at 80°C, stir and react for 120min, filter the slurry with suction, wash and dry to obtain organic modified The nano-phosphorus adsorbent A. A is configured as tetrahydrofuran dilution B with a mass fraction of 10%.

[0031] Step b. Take 10 g of polyacrylonitrile, dissolve it in N-methylformamide (DMF), and prepare a solution C with a mass fraction of 8% for future use.

[0032] Step c, take 10g of diluent B and 62.5g of solution C, and mix the two evenly to obtain spinning solution D. The D solution is injected into the syringe in the high-voltage electrospinning device, and a metal needle is assembled on the syringe, and the metal needle is connected to one pole of the high-voltage power supply....

Embodiment 3

[0036] In step a, select a commercially available nano-layered silicate product, sodium montmorillonite-Laponite RD, and activate it by cationic modification. Add 10g of Laponite RD into 100g of deionized water, mix to form a uniform slurry, add 0.2g of hexadecylpyridinium chloride at 80°C, stir and react for 120min, filter the slurry with suction, wash and dry to obtain organic modified The nano-phosphorus adsorbent A. A is configured as tetrahydrofuran dilution B with a mass fraction of 10%.

[0037] Step b. Take 10 g of polyacrylonitrile, dissolve it in N-methylformamide (DMF), and prepare a solution C with a mass fraction of 8% for future use.

[0038] Step c, take 5g of diluent B and 62.5g of solution C, and mix the two evenly to obtain spinning solution D. The D solution is injected into the syringe in the high-voltage electrospinning device, and a metal needle is assembled on the syringe, and the metal needle is connected to one pole of the high-voltage power supply. ...

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PUM

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Abstract

The invention discloses a preparing method of a phosphorus-removal and antibacterial nanometer fiber membrane. The preparing method specially comprises the steps of S1, preparing a phosphorus adsorbent, wherein a nanometer phosphorus adsorbent is selected and activated or modified to be prepared into a 5-25% solution or suspension; S2, preparing a polymer solution or a modified polymer solution, wherein a polymer or a modified polymer is selected to be prepared into a 8-30% solution; S3, preparing a spinning solution, wherein the solutions prepared in S1 and S2 are mixed in a certain proportion to be prepared into the spinning solution; S4, preparing the phosphorus-removal and antibacterial nanometer fiber membrane, wherein the spinning solution is subjected to electrostatic spinning to beprepared into the phosphorus-removal and antibacterial nanometer fiber membrane. The subsequent treatment technology for the nanometer fiber membrane prepared after electrostatic spinning according to the preparing method is very simple, the adsorbing efficiency of the produced phosphorus-removal and antibacterial nanometer fiber membrane is high, secondary pollution to water cannot be caused, the membrane also has the filtering and antibacterial functions, and the water purification flow is simplified. The preparing method has a great industrialization prospect.

Description

technical field [0001] The invention relates to a method for preparing a phosphorus-removing antibacterial nanofiber membrane by an electrospinning method, in particular to a phosphorus-removing antibacterial nanofiber membrane with a high adsorption rate and a manufacturing method thereof. Background technique [0002] The continuous discharge of wastewater rich in phosphorus and other nutrients has caused eutrophication of the water body, a large number of algae in the water body have grown wildly, the dissolved oxygen has decreased, the water quality has deteriorated, and the ecological environment has been seriously damaged. The main way for phosphorus to enter the water environment is the discharge of phosphorus-containing industrial wastewater and domestic sewage. Therefore, effective removal of phosphorus before sewage and wastewater discharge is an important means to control water eutrophication. At present, the main methods of phosphorus removal include chemical pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/548D01D5/00
Inventor 李真真黄活阳王芳罗熙雯李衍
Owner CHANGSHA ADVANCED MATERIALS IND RES INST CO LTD
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