Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing photocatalytic filter membrane by electrospinning

An electrospinning and photocatalytic technology, applied in the field of membrane materials, can solve problems such as threats to health, secondary pollution, and inability to completely control pollutants, avoid the use of pore-forming agents, and reduce the steps of membrane-making. Effect

Inactive Publication Date: 2019-02-22
江苏奥净嘉环保科技有限公司
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Water pollution has become the most important part of environmental pollution at present, threatening people's health. Membrane separation is one of the effective means of sewage treatment, which can effectively filter pollutants. However, traditional filtration membranes only aim at separation and cannot completely To achieve the treatment of pollutants, in addition, in the preparation of membranes, a large number of pore-forming agents and solvents used for subsequent treatment of pore-forming agents have been used, which has caused secondary pollution to the environment. Therefore, new technologies and membrane materials that can automatically decompose pollutants appears to be particularly important

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing photocatalytic filter membrane by electrospinning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method for preparing a photocatalytic filter membrane by electrospinning, comprising the following preparation steps:

[0020] S1, 2 parts by weight of aniline, 1 part of nano-titanium dioxide and 50 parts of polyacrylonitrile were dissolved in dimethylacetamide at 20 ° C to obtain a mixed solution;

[0021] S2. Using electrospinning technology to spin the mixed solution to prepare a porous membrane, soak the porous membrane in a hydrochloric acid solution with a concentration of 1 mole per liter at 0-5°C for 24 hours, take it out, wash it with water, and dry it to obtain a photocatalytic filter membrane. .

[0022] Electrospinning in embodiment 1 prepares the scanning electron microscope picture of photocatalytic filter membrane figure 1 As shown, it can be seen that a porous filter membrane with a pore size of 1-10 microns was prepared by electrospinning technology.

Embodiment 2

[0024] A preparation method for preparing a photocatalytic filter membrane by electrospinning, comprising the following preparation steps:

[0025] S1. Dissolving 6 parts of aniline, 3 parts of nano-titanium dioxide and 98 parts of polyvinyl chloride into dimethylformamide at 80°C to obtain a mixed solution;

[0026] S2. Using electrospinning technology to spin the mixed solution to prepare a porous membrane, soak the porous membrane in a hydrochloric acid solution with a concentration of 1 mole per liter at 0-5°C for 24 hours, take it out, wash it with water, and dry it to obtain a photocatalytic filter membrane. .

Embodiment 3

[0028] A preparation method for preparing a photocatalytic filter membrane by electrospinning, comprising the following preparation steps:

[0029] S1. Dissolve 4 parts of aniline, 2 parts of nano-titanium dioxide and 70 parts of polyvinyl chloride and polyacrylonitrile (the mass ratio of polyvinyl chloride and polyacrylonitrile is 1:1) in dimethyl sulfoxide at 50°C, to obtain a mixed solution;

[0030] S2. Using electrospinning technology to spin the mixed solution to prepare a porous membrane, soak the porous membrane in a hydrochloric acid solution with a concentration of 1 mole per liter at 0-5°C for 24 hours, take it out, wash it with water, and dry it to obtain a photocatalytic filter membrane. .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for preparing a photocatalytic filter membrane by electrospinning. The method includes dissolving aniline, nano titanium dioxide and a polymer material into a solventto obtain a mixed solution; spinning the mixed solution by the electrospinning technology to obtain a porous membrane; immersing the porous membrane in an acid solution for 24 hours, taking out, washing with water and drying to obtain the photocatalytic filter membrane. The photocatalytic filter membrane prepared by the electrospinning has good flexibility, can be used as a filter screen for sewage, and has the capability of photocatalytic decomposition of pollutants and self-cleaning capability.

Description

technical field [0001] The invention relates to the technical field of membrane materials, in particular to a method for preparing a photocatalytic filter membrane by electrospinning. Background technique [0002] Water pollution has become the most important part of environmental pollution at present, threatening people's health. Membrane separation is one of the effective means of sewage treatment, which can effectively filter pollutants. However, traditional filtration membranes only aim at separation and cannot completely To achieve the treatment of pollutants, in addition, in the preparation of membranes, a large number of pore-forming agents and solvents used for subsequent treatment of pore-forming agents have been used, which has caused secondary pollution to the environment. Therefore, new technologies and membrane materials that can automatically decompose pollutants appears to be particularly important. In view of this, it is necessary to study a photocatalytic f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01D67/00B01D69/02
CPCB01D67/0079B01D69/02B01D2323/39B01D2325/10
Inventor 郭赞如蒋勇
Owner 江苏奥净嘉环保科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com