Preparation method of silver-loaded activated carbon antibacterial fiber membrane

A silver-loaded activated carbon and antibacterial fiber technology, which is applied in the field of fiber membranes, can solve the problems of poor membrane mechanical properties, large membrane specific surface area, and low membrane pressure, and achieve the effects of improving antibacterial performance, enhancing antibacterial performance, and improving antibacterial properties

Active Publication Date: 2020-11-10
江苏鑫林环保设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The film-forming method of electrospinning to prepare fiber film is to form a Taylor cone at the nozzle by the spinning liquid in a high-voltage electric field, and the fiber filaments are stacked on the upper layer of the receiving device to form a film, with high porosity, large specific surface area of ​​the film, and high membrane pressure. Small size, large water flux, etc., but there is also the problem of poor mechanical properties of the membrane

Method used

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  • Preparation method of silver-loaded activated carbon antibacterial fiber membrane
  • Preparation method of silver-loaded activated carbon antibacterial fiber membrane
  • Preparation method of silver-loaded activated carbon antibacterial fiber membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 A kind of preparation method of shown antibacterial silver-loaded activated carbon, comprises the following steps:

[0020] Step 1) Preparation of antibacterial silver-loaded activated carbon: Weigh a certain amount of activated carbon and soak it in AgNO with a concentration of 0.08mol / L 3 In the solution; choose phosphate as the anti-flocculation agent, take a certain amount of anti-flocculation agent according to the ratio of anti-flocculation agent: silver ion mass ratio of 0.2:1, dissolve in AgNO under ultrasonic conditions 3 solution; then the glucose solution was slowly added dropwise to the stirred AgNO 3 In the solution, heat in a water bath at 60°C and stir magnetically for 24 hours; filter the product, wash it with water several times to remove excess glucose until Ag+ is completely removed, then dry it in vacuum at 70°C for 8 hours; then dry the product in a blast oven at 70°C for 2 hours , and then burn at high temperature in a nitrogen a...

Embodiment 2

[0024] Such as figure 1 A kind of preparation method of shown antibacterial silver-loaded activated carbon, comprises the following steps:

[0025] Step 1) Preparation of antibacterial silver-loaded activated carbon: Weigh a certain amount of activated carbon and soak it in AgNO with a concentration of 0.08mol / L 3 In the solution; choose phosphate as the anti-flocculation agent, take a certain amount of anti-flocculation agent according to the ratio of anti-flocculation agent: silver ion mass ratio of 0.5:1, dissolve in AgNO under ultrasonic conditions 3 solution; then the glucose solution was slowly added dropwise to the stirred AgNO 3 In the solution, heat in a water bath at 60°C and stir magnetically for 24 hours; filter the product, wash it with water several times to remove excess glucose until Ag+ is completely removed, then dry it in vacuum at 70°C for 8 hours; then dry the product in a blast oven at 70°C for 2 hours , and then burn at high temperature in a nitrogen a...

Embodiment 3

[0029] Such as figure 1 A kind of preparation method of shown antibacterial silver-loaded activated carbon, comprises the following steps:

[0030] Step 1) Preparation of antibacterial silver-loaded activated carbon: Weigh a certain amount of activated carbon and soak it in AgNO with a concentration of 0.08mol / L 3 In the solution; choose phosphate as the anti-flocculation agent, take a certain amount of anti-flocculation agent according to the ratio of anti-flocculation agent: silver ion mass ratio of 1:1, and dissolve it in AgNO under ultrasonic conditions. 3 solution; then the glucose solution was slowly added dropwise to the stirred AgNO 3 In the solution, heat in a water bath at 60°C and stir magnetically for 24 hours; filter the product, wash it with water several times to remove excess glucose until Ag+ is completely removed, then dry it in vacuum at 70°C for 8 hours; then dry the product in a blast oven at 70°C for 2 hours , and then burn at high temperature in a nitr...

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Abstract

The invention discloses a preparation method of a silver-loaded activated carbon antibacterial fiber membrane. The preparation method comprises the following steps of step 1) preparing antibacterial silver-loaded activated carbon: soaking activated carbon in an AgNO3 solution, selecting a deflocculating agent, dissolving in the AgNO3 solution, slowly dropwise adding a glucose solution into the AgNO3 solution in a stirring state, performing heating in a water bath, performing magnetic stirring, filtering a product, performing washing with water, removing glucose until Ag<+> is completely removed, performing vacuum drying, finally, drying a product in a blast oven, and firing the product in a tubular furnace at a high temperature of 500 DEG C in a nitrogen atmosphere to obtain the silver-loaded activated carbon; 2) preparing a spinning solution, wherein polyacrylonitrile is dissolved in a certain volume of N, N-dimethylformamide solution, heating and magnetic stirring are carried out, aspinning solution is obtained, silver-loaded activated carbon is added into the spinning solution, magnetic stirring is carried out for 8 h after sealing is carried out, an antibacterial spinning solution is obtained; and 3) performing spinning, wherein spinning is carried out through an electrostatic spinning device. Through the method, the fiber membrane has the good antibacterial property.

Description

technical field [0001] The invention relates to a fiber membrane, in particular to a preparation method of a silver-loaded activated carbon antibacterial fiber membrane. Background technique [0002] Safe and reliable drinking water supply is of great significance to the protection of people's health and economic development. Water supply enterprises must implement the whole process management from water source to users, especially in the water supply stage of pipe network, to ensure that end users get safe and high-quality drinking water. Although the factory water has been chlorinated and disinfected, a large number of microorganisms have been killed, and even the pipe network water contains a certain amount of residual chlorine to continue to maintain the disinfection effect, the problem of a significant drop in the pass rate of bacteriological indicators in the water terminal will still occur. The latest research and industry application results show that conventional ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/43D04H3/02D04H3/007D01D5/00D01F6/54D01F1/10
CPCD01D5/003D01D5/0076D01F1/103D01F6/54D04H1/43D04H1/728D04H3/007D04H3/02D10B2401/13D10B2505/04
Inventor 杨瑞洪
Owner 江苏鑫林环保设备有限公司
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