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Modified multi-walled carbon nanotube, preparation method thereof and method for removing nickel ions in water

A technology of multi-walled carbon nanotubes and nickel ions, which is applied in the preparation of modified multi-walled carbon nanotubes, the fields of modified multi-walled carbon nanotubes and the removal of nickel ions in water, can solve the problem of high cost, low processing efficiency and low content. The water treatment effect of the concentration of nickel ions is not good, so as to achieve the effect of low cost, simple operation and improving the ability of adsorbing heavy metal ions

Inactive Publication Date: 2020-07-10
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing above-mentioned problems such as high cost, low treatment efficiency and easy to cause secondary pollution, and most of the existing methods are suitable for treating water containing high-concentration nickel ions, and the treatment effect on water containing low-concentration nickel ions bad

Method used

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  • Modified multi-walled carbon nanotube, preparation method thereof and method for removing nickel ions in water
  • Modified multi-walled carbon nanotube, preparation method thereof and method for removing nickel ions in water
  • Modified multi-walled carbon nanotube, preparation method thereof and method for removing nickel ions in water

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preparation example Construction

[0034] The preparation method of the modified multi-walled carbon nanotube according to the embodiment of the present invention comprises the following steps:

[0035] Prepare potassium permanganate solution, specifically, take a certain quality of potassium permanganate and place it in a certain volume of deionized water to form a certain concentration of potassium permanganate solution;

[0036] The multi-walled carbon nanotubes and the potassium permanganate solution are placed in a container, in other words, the multi-walled carbon nanotubes and the potassium permanganate solution are mixed, wherein the container is such as an Erlenmeyer flask;

[0037] ultrasonically oscillating the container at a first preset temperature for a first preset time to react the multi-walled carbon nanotubes and the potassium permanganate solution, in other words, the multi-walled carbon nanotubes and the potassium permanganate solution are mixed for an ultrasonic reaction , and the reaction ...

Embodiment 1

[0070] Potassium permanganate solution was prepared so that the mass ratio of multi-walled carbon nanotubes to potassium permanganate was 1:0.95. Weigh 1.5 g of dried multi-walled carbon nanotubes, put them in a 250 ml Erlenmeyer flask, and add 250 ml of the above potassium permanganate solution into the 250 ml Erlenmeyer flask. Seal the Erlenmeyer flask containing the multi-walled carbon nanotubes and potassium permanganate solution with a sealing film. The sealed Erlenmeyer flask was ultrasonically oscillated at 25° C. for 2.5 h so that the multi-walled carbon nanotubes and the potassium permanganate solution undergo an ultrasonic reaction. After the ultrasonic reaction, use a microfiltration membrane to filter the reacted multi-walled carbon nanotubes, then wash the reacted multi-walled carbon nanotubes with deionized water and put them in a drying oven at a constant temperature of 60°C for 10 hours. , dried and ground to obtain modified multi-walled carbon nanotubes, reco...

Embodiment 2

[0073] Potassium permanganate solution was prepared so that the mass ratio of multi-walled carbon nanotubes to potassium permanganate was 1:0.95. Weigh 1.5 g of dried multi-walled carbon nanotubes, put them in a 250 ml Erlenmeyer flask, and add 250 ml of the above potassium permanganate solution into the 250 ml Erlenmeyer flask. Seal the Erlenmeyer flask containing the multi-walled carbon nanotubes and potassium permanganate solution with a sealing film. The sealed Erlenmeyer flask was vibrated ultrasonically at 25° C. for 1.5 h so that the multi-walled carbon nanotubes and the potassium permanganate solution undergo an ultrasonic reaction. After the ultrasonic reaction, use a microfiltration membrane to filter the reacted multi-walled carbon nanotubes, then wash the reacted multi-walled carbon nanotubes with deionized water and put them in a drying oven at a constant temperature of 60°C for 10 hours. , dried and ground to obtain modified multi-walled carbon nanotubes, denote...

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Abstract

The invention discloses a preparation method of a modified multi-walled carbon nanotube and a method for removing nickel ions in water. The preparation method of the modified multi-walled carbon nanotube comprises the following steps: preparing a potassium permanganate solution; putting multi-walled carbon nanotubes and the potassium permanganate solution into a container; carrying out ultrasonicoscillation on the container at a first preset temperature for a first preset time so as to enable the multi-walled carbon nanotubes to react with the potassium permanganate solution; carrying out suction filtration on the multi-walled carbon nanotubes after the reaction; cleaning the multi-walled carbon nanotubes after the reaction; and putting the washed reacted multi-walled carbon nanotubes into a drying box, and drying the multi-walled carbon nanotubes for a second preset time at a second preset temperature to obtain the modified multi-walled carbon nanotube. The preparation method of themodified multi-walled carbon nanotube is simple to operate, the heavy metal ion adsorption capacity of the modified multi-walled carbon nanotube is improved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a preparation method of modified multi-wall carbon nanotubes, the modified multi-wall carbon nanotubes prepared by the preparation method and a method for removing nickel ions in water. Background technique [0002] Nickel belongs to the first category of pollutants stipulated in my country. Nickel-containing wastes produced in processes such as electroplating, nickel mining and smelting will lead to nickel pollution in groundwater. Nickel is easy to accumulate in human kidney, spleen, liver, etc., and induces nasopharyngeal cancer and lung cancer. Therefore, advanced water treatment is required to remove nickel ions. Contents of the invention [0003] This application is based on the inventor's discovery and recognition of the following facts and problems: [0004] Methods for removing nickel ions in water in related technologies include chemical precipitation, elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20C02F1/28C01B32/168C02F101/20C02F103/16
CPCB01J20/205C01B2202/06C02F1/283C02F2101/20C02F2103/16C01B32/168
Inventor 侯嫔杨晓瑜霍燕龙卢彦岑武星魁张瑜夏瑜
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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