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Preparation method of antibacterial silver-loaded activated carbon

A silver-loaded activated carbon, a certain amount of technology, applied in the field of activated carbon, can solve problems such as inability to effectively remove microorganisms in water, and achieve the effects of avoiding loss of silver ions, avoiding damage, and improving antibacterial properties

Inactive Publication Date: 2020-11-10
YANGZHOU POLYTECHNIC INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The latest research and industry application results show that conventional chlorine disinfection processes, contact oxidation iron and manganese removal and chlorination disinfection processes as well as coagulation, sedimentation, filtration and chlorine disinfection processes cannot effectively remove microorganisms in water

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0025] Step 1) Weigh a certain amount of activated carbon and soak it in AgNO with a concentration of 0.08mol / L 3 in solution;

[0026] Step 2) Select phosphate as the anti-flocculation agent, weigh a certain amount of anti-flocculation agent according to the ratio of anti-flocculation agent: silver ion mass ratio of 0.5:1, and dissolve it in AgNO under ultrasonic conditions 3 in solution;

[0027] Step 3) Then the glucose solution was slowly added dropwise to the AgNO 3 In the solution, heat in a water bath at 60°C and stir magnetically for 24 hours;

[0028] Step 4) Filter the product of step 3), wash with water several times to remove excess glucose, until Ag+ is completely removed, and then vacuum-dry at 70°C for 8 hours;

[0029] Step 5) Dry the product of step 4) in a blast oven at 70°C for 2 hours, and then burn it in a tube f...

Embodiment 2

[0031] The difference from Example 1 is only: deflocculant: silver ion = 0.3:1, and no high-temperature burning is performed.

Embodiment 3

[0033] The difference from Example 1 is only: deflocculant: silver ion = 0.2:1, and no high-temperature burning is performed.

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Abstract

The invention discloses a preparation method of antibacterial silver-loaded activated carbon, wherein the method comprises the following steps: 1) weighing a certain amount of activated carbon, and soaking in an AgNO3 solution; 2) selecting a deflocculating agent, and dissolving the deflocculating agent in the AgNO3 solution under an ultrasonic condition; 3) slowly dropwise adding a glucose solution into the AgNO3 solution in a stirring state, heating in a water bath, and magnetically stirring; (4) filtering the product obtained in the step (3), washing with water multiple times, removing theredundant glucose until Ag<+> is completely removed, and carrying out vacuum drying; and (5) drying the product obtained in the step (4) in a blast drying oven, and firing in a tubular furnace at a high temperature of 500 DEG C in a nitrogen atmosphere so as to obtain the product.

Description

technical field [0001] The invention relates to an activated carbon, in particular to a method for preparing silver-loaded activated carbon. 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 chlorine disinfection processes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/354B22F9/24
CPCB22F9/24C01B32/354
Inventor 杨瑞洪
Owner YANGZHOU POLYTECHNIC INST
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