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Preparation method for activated carbon material and application thereof

A technology of activated carbon and carbon materials, applied in the chemical industry, can solve the problems of uneven distribution of activator and difficult activation process, and achieve the effect of improving activation effect, broad application prospect and simple synthesis process.

Active Publication Date: 2015-12-02
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, whether the activated carbon is prepared by solid-solid mixing or impregnation, the distribution of activator is not uniform, which means that the activation process is difficult to be carried out uniformly in the carbon skeleton.

Method used

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  • Preparation method for activated carbon material and application thereof
  • Preparation method for activated carbon material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Measure 001×7 ion exchange resin and KOH aqueous solution with a concentration of 1mol / L at a volume ratio of 1:2, stir and mix at 30°C for 32 hours, and replace the KOH solution every 8 hours. Then it was washed with deionized water until neutral, filtered, and dried at 100°C to obtain K + doped resin. Take 10gK + Doped resin in N at a flow rate of 100mL / min 2 Carbonization was carried out at 500°C for 3 hours in the atmosphere, and the heating rate was 5°C / min. Then, the carbon material prepared above was washed with 0.1 mol / L HCl solution for 2 hours, then washed with deionized water until neutral, filtered and dried at 100°C to obtain activated carbon material sample 1#. The texture properties of activated carbon material sample 1# are shown in Table 1.

Embodiment 2

[0049] Measure 001×7 ion exchange resin and KOH aqueous solution with a concentration of 1mol / L at a volume ratio of 1:2, stir and mix at 30°C for 32 hours, and replace the KOH solution every 8 hours. Then it was washed with deionized water until neutral, filtered, and dried at 100°C to obtain K + doped resin. Take 10gK + The doped resin was pre-oxidized in air at a flow rate of 100 mL / min at 200 °C for 1 hour, and then in N at a flow rate of 100 mL / min. 2 Carbonization was carried out at 500°C for 3 hours in the atmosphere, and the heating rate was 5°C / min. Then, the carbon material prepared above was washed with 0.1 mol / L HCl solution for 2 hours, then washed with deionized water until neutral, filtered and dried at 100°C to obtain activated carbon material sample 2#. The texture properties of activated carbon material sample 2# are shown in Table 1.

Embodiment 3

[0051] Measure 001×7 ion exchange resin and KOH aqueous solution with a concentration of 1mol / L at a volume ratio of 1:2, stir and mix at 30°C for 32 hours, and replace the KOH solution every 8 hours. Then it was washed with deionized water until neutral, filtered, and dried at 100°C to obtain K + doped resin. Take 10gK + Doped resin in N at a flow rate of 100mL / min 2 Carbonization was carried out at 600°C for 3 hours in the atmosphere, and the heating rate was 5°C / min. Then, the carbon material prepared above was washed with 0.1 mol / L HCl solution for 2 hours, then washed with deionized water until neutral, filtered and dried at 100°C to obtain activated carbon material sample 3#. The texture properties of activated carbon material sample 3# are shown in Table 1.

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Abstract

The invention provides a preparation method for an activated carbon material. The preparation method comprises the following steps: 1) taking an activator aqueous solution, adding ion exchange resin and stirring and mixing the mixture for ion exchange; 2) washing, filtering and drying the obtained mixture to obtain the required resin; 3) optional one step: a, carbonizing the obtained resin in an N2 atmosphere; b, after pre-oxidizing the obtained resin in air, carbonizing the resin in the N2 atmosphere; and 4) washing and drying the obtained carbon material to obtain the required activated carbon material. The invention further discloses an activated carbon material by adopting the method and application thereof. According to the activated carbon material and the application thereof provided by the invention, the activator can be uniformly dispersed and the carbon material is activated by alkali metal ions at a high temperature. The prepared activated carbon material has good application potential in adsorbing carbon dioxide and phenol.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a preparation method of an activated carbon material and its application, in particular to a preparation method of an ion exchange resin as a precursor to prepare a high-performance activated carbon material and its application in the adsorption of carbon dioxide and phenol. Background technique [0002] Activated carbon has the advantages of low price, good chemical stability, and large specific surface area. It has a wide range of applications in the fields of adsorption, separation, and catalysis. The activation process of activated carbon has an important impact on the pore structure of activated carbon, and ultimately determines the performance of the material in the target application field. [0003] At present, the activation methods of carbon materials mainly include physical activation, chemical activation and composite activation: (1) physical activation mainly includes wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/12
Inventor 孙予罕魏伟王保登孙楠楠张中正杨秀云
Owner SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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