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Preparation method of g-C3N4-suppurted active carbon with photocatalytic function

A technology of activated carbon and photocatalysis, applied in the field of activated carbon, which can solve the problems of complex process, harsh operating conditions and low efficiency

Inactive Publication Date: 2014-01-08
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional regeneration methods mainly include thermal regeneration, chemical regeneration, solvent regeneration, biological regeneration, etc., but due to their defects such as low efficiency, high cost, harsh operating conditions, and complicated processes, traditional regeneration methods can no longer meet the needs of current industrial development.

Method used

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  • Preparation method of g-C3N4-suppurted active carbon with photocatalytic function
  • Preparation method of g-C3N4-suppurted active carbon with photocatalytic function
  • Preparation method of g-C3N4-suppurted active carbon with photocatalytic function

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Experimental program
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Effect test

Embodiment 1

[0033] Take 5g of activated carbon, 1g of trichloroazine (C 3 N 3 C1 3 ) and 0.5g of lithium nitride (Li 3 N) Put it in a high-pressure reactor, add 50 ml of benzene, feed nitrogen to fully drive away the air in the reactor system, apply a pressure of 30 MPa in the reactor, and then make the reactor in the reactor at a speed of 1°C / min The temperature was raised to 320°C and reacted at constant temperature and pressure for 4 hours, then naturally cooled to room temperature, benzene was filtered off, and the product was washed successively with 50 mL of 0.02 mol / L hydrochloric acid and 50 mL of acetone, and then repeatedly washed with distilled water until The filtrate was neutral, and the product was washed twice with 100 mL of absolute ethanol, and dried in a vacuum oven at 85 °C for 24 h to obtain photocatalytic functional activated carbon.

Embodiment 2

[0035] Get 8g of activated carbon, 3g of trichloroazine (C 3 N 3 C1 3 ) and 2g of lithium nitride (Li 3N) Put it in a high-pressure reactor, add 100 ml of benzene, feed nitrogen to fully drive away the air in the reactor system, apply a pressure of 35MPa in the reactor, and then make the reactor in the reactor at a speed of 0.1°C / min The temperature was raised to 300°C and reacted at constant temperature and pressure for 6 hours, then naturally cooled to room temperature, benzene was filtered off, and the product was washed with 50 mL of 0.05 mol / L hydrochloric acid and 50 mL of acetone in sequence, and then washed repeatedly with distilled water until The filtrate was neutral, and the product was washed twice with 100 mL of absolute ethanol, and dried in a vacuum oven at 85 °C for 24 h to obtain photocatalytic functional activated carbon.

Embodiment 3

[0037] Get 6g of activated carbon, 2g of trichloroazine (C 3 N 3 C1 3 ) and 1.5g of lithium nitride (Li 3 N) Put it in a high-pressure reactor, add 90 ml of benzene, feed nitrogen to fully drive away the air in the reactor system, apply a pressure of 38 MPa in the reactor, and then make the reactor in the reactor at a speed of 0.5 °C / min The temperature was raised to 310°C and reacted at constant temperature and pressure for 5 hours, then naturally cooled to room temperature, benzene was filtered off, and the product was washed with 50 mL of 0.01mol / L nitric acid and 50 mL of acetone in sequence, and then washed repeatedly with distilled water until The filtrate was neutral, and the product was washed twice with 100 mL of absolute ethanol, and dried in a vacuum oven at 85 °C for 24 h to obtain photocatalytic functional activated carbon.

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Abstract

The invention discloses a preparation method of active carbon with a photocatalytic function. The preparation method comprises the following steps of taking active carbon, oxazine trichloride (C3N3C13), lithium nitride (Li3N) and the like as main raw materials, and performing processes of heating, pressing and the like in a benzene solvent to prepare the g-C3N4-suppurted active carbon with the photocatalytic function. The g-C3N4-suppurted active carbon can purify pollutants by depending on adsorption performance and catalytic performance under a lighting condition, can purify the pollutants by depending on the adsorption performance of the active carbon under the condition with darkness and insufficient light, and can realize in situ regeneration under illumination, so that the consumption of manpower, material resources and financial resources of a regenerative process is greatly reduced. The successful research of the active carbon plays a role in remission of insufficient supply of active carbon in China.

Description

technical field [0001] The invention belongs to the field of activated carbon, and in particular relates to a preparation method of activated carbon with photocatalytic function. Background technique [0002] Activated carbon is widely used in food industry, chemical industry, environmental protection and other fields because of its developed pore structure, strong adsorption capacity, rich surface functional groups, high mechanical strength, and chemical inertness. However, due to the lack of activated carbon varieties, low technical content, and lack of functional high-quality special activated carbon, my country's activated carbon industry is restricted from moving towards a higher level of application. Modification of activated carbon to develop functional activated carbon that can efficiently and deeply purify pollutants is an effective way to reduce the cost of activated carbon, expand its scope of use, and improve its utilization efficiency. It is an important directi...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30B01J20/34
Inventor 陈孝云陆东芳陈星高骁敏常鼎伟
Owner FUJIAN AGRI & FORESTRY UNIV
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