Activated carbon composite material, preparation method and application thereof

A technology of composite materials and activated carbon, which is applied in the direction of chemical instruments and methods, alkali metal compounds, and other chemical processes, to achieve effective removal, good effect, and good mechanical strength

Active Publication Date: 2019-10-15
BEIJING NORMAL UNIVERSITY +2
6 Cites 1 Cited by

AI-Extracted Technical Summary

Problems solved by technology

The method of removing refractory organic matter is mainly advanced oxidation method. The current research is mostly on the removal tec...
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Method used

Comprehensive test example 1-6 can know that the activated carbon composite material provided by the present invention has good mechanical strength, and the number of times of repeated use is high, and has larger advantages as a purifying agent for sewage. The activated carbon composite material is used to treat sewage, whic...
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Abstract

The invention relates to an activated carbon composite material, a preparation method and application thereof. The preparation method comprises the following steps: firstly, adding activated carbon into a ferrite solution, and stirring, so as to obtain activated carbon particles; ensuring that the mass molar ratio of activated carbon to ferrite is (20-100) g: 1mol; secondly, adding the activated carbon particles into a solvent, stirring under the existence of a reducing agent, and drying, so as to obtain the activated carbon composite material. The activated carbon composite material is good in mechanical strength and high number of reutilization, and has large advantage as a cleaning agent for sewage. The activated carbon composite material can effectively remove ammonia nitrogen, organics and total phosphorus by being applied to sewage treatment. After treatment, the content of total organic carbon is reduced by greater than 40 percent, fluorescence characteristic is obviously reduced, the content of ammonia nitrogen is reduced by greater than 70 percent, and the content of total phosphorus is reduced by greater than 80 percent.

Application Domain

Other chemical processesWater contaminants +3

Technology Topic

SolventActivated carbon +14

Image

  • Activated carbon composite material, preparation method and application thereof
  • Activated carbon composite material, preparation method and application thereof
  • Activated carbon composite material, preparation method and application thereof

Examples

  • Experimental program(9)
  • Comparison scheme(1)
  • Effect test(6)

Example Embodiment

[0084] Example 1
[0085] This embodiment provides an activated carbon composite material, which is prepared by the following method:
[0086] 1) Put 28g of columnar activated carbon in 500mL ferrous sulfate solution with a concentration of 1mol/L and stir for two hours;
[0087] 2) After washing the activated carbon particles obtained in step 1), place them in about 300 mL of ultrapure water and stir. At the same time, add 100 mL of potassium borohydride solution with a concentration of 1.08 mol/L dropwise. After dripping, continue to stir for 24 hours, and then The prepared material is lyophilized in a freeze dryer at -80°C for 8 hours to obtain.
[0088] Characterized as Figure 1-1 ~ Figure 5 Shown:
[0089] Reference attachment Picture 1-1 And Figure 1-2 Is a scanning electron micrograph of the activated carbon composite material of the present invention. It can be seen that the surface of the activated carbon composite material has a non-uniform porous structure, and the surface is composed of multiple elements.
[0090] Reference attachment figure 2 According to the XRD pattern, the peak at 2θ at 25.13° represents the amorphous carbon in the material, and the peak at 43.37° represents amorphous Fe 0 , The peak appearing at 78.58° represents Fe 3 C.
[0091] Reference attachment image 3 According to the XPS full spectrum, the components in the activated carbon composite material mainly include C, O, and Fe.
[0092] Reference attachment Figure 4 , It can be seen from the XPS spectrum of iron that the iron forms in the material mainly include elemental Fe, Fe 2 O 3 , Fe 3 O 4 Three kinds.
[0093] Reference attachment Figure 5 , It can be seen from the Fourier infrared spectrum of the activated carbon composite that the main functional group of the activated carbon composite has -CH 2 , -C=O and -C-O.

Example Embodiment

[0094] Example 2
[0095] This embodiment provides an activated carbon composite material. The difference from Embodiment 1 is:
[0096] The ratio of iron to carbon is 1:2.

Example Embodiment

[0097] Example 3
[0098] This embodiment provides an activated carbon composite material. The difference from Embodiment 1 is:
[0099] The ratio of iron to carbon is 3:1.

PUM

PropertyMeasurementUnit
Concentration1.0mol/l

Description & Claims & Application Information

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