Preparation method and application of copper-doped graphite phase carbon nitride composite material

A graphite phase carbon nitride, composite material technology, applied in chemical instruments and methods, chemical/physical processes, oxidized water/sewage treatment, etc., can solve the problems of low degradation performance of organic dyes, and achieve poor degradation efficiency and cost. Low cost, widely available raw materials

Active Publication Date: 2018-12-14
NANJING UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0003] In order to overcome the deficiencies in the prior art, the present invention proposes a preparation method of a copper-doped graphite phase carbon nitride composite material, in order to solve the problem of present graphite phase carbon nitride g-C 3 N 4 The problem of low degradation performance of organic dyes and its composite materials in the absence of light

Method used

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  • Preparation method and application of copper-doped graphite phase carbon nitride composite material
  • Preparation method and application of copper-doped graphite phase carbon nitride composite material
  • Preparation method and application of copper-doped graphite phase carbon nitride composite material

Examples

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Effect test

Embodiment 1

[0042] At room temperature, pour 7g of copper chloride dihydrate into 300mL of 37% concentrated hydrochloric acid, seal and stir for 5-10min to dissolve. Slowly pour 10 g of melamine into the above solution, at this time a large amount of yellow solids are produced, place it in a constant temperature magnetic stirrer and stir for 1-3 hours. The yellow precursor was obtained by filtration, filled into an ark, put into a tube furnace and raised to 500°C at a rate of 10°C / min in an air atmosphere, kept at a constant temperature for 2 hours, and then naturally cooled to room temperature.

Embodiment 2

[0044] At room temperature, pour 7g of copper chloride dihydrate into 300mL of 37% concentrated hydrochloric acid, seal and stir for 5-10min to dissolve. Slowly pour 10 g of melamine into the above solution, at this time a large amount of yellow solids are produced, place it in a constant temperature magnetic stirrer and stir for 1-3 hours. The yellow precursor was obtained by filtration, filled into an ark, put into a tube furnace, raised to 550°C at a rate of 10°C / min in an air atmosphere, kept at a constant temperature for 2 hours, and then naturally cooled to room temperature.

Embodiment 3

[0046] At room temperature, pour 7g of copper chloride dihydrate into 300mL of 37% concentrated hydrochloric acid, seal and stir for 5-10min to dissolve. Slowly pour 10 g of melamine into the above solution, at this time a large amount of yellow solids are produced, place it in a constant temperature magnetic stirrer and stir for 1-3 hours. The yellow precursor was obtained by filtration, filled into an ark, put into a tube furnace, and raised to 580°C at a rate of 10°C / min in an air atmosphere, and kept at a constant temperature for 2 hours, then naturally cooled to room temperature.

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Abstract

The invention relates to a preparation method and application of a copper-doped graphite phase carbon nitride composite material, and belongs to the field of composite material preparation and catalysis. The problem of low performance of existing graphite phase carbon nitride and existing composite materials in organic dye degradation under the condition of no sunlight illumination is solved. Thepreparation method of the composite material comprises the steps: using melamine and copper chloride as raw materials and concentrated hydrochloric acid as a solvent, performing stirring at room temperature so as to obtain a yellow precursor, and then performing calcination in an air atmosphere so as to obtain the composite material. The obtained copper-doped graphite phase carbon nitride composite material not only has good photocatalytic performance under visible light illumination, but also efficiently degrades organic dye in the absence of illumination; the composite material has easily available raw materials, low price and simple preparation, the defect of low catalytic performance of the existing graphite phase carbon nitride and existing composite materials under the condition of no sunlight illumination is compensated, and therefore the application prospect is good.

Description

technical field [0001] The invention relates to a preparation method and application of a copper-doped graphite phase carbon nitride composite material, belonging to the field of composite material preparation and catalysis. Background technique [0002] With the continuous development of industrial civilization, while enjoying the convenience and speed brought by it, people also suffer from various threats from environmental pollution and resource destruction. Organic dyes are extremely important chemical raw materials for industrial production. On the one hand, their development history represents the prosperity and growth of the printing and dyeing industry. On the other hand, their chemical toxicity also brings an increasingly serious environmental pollution crisis to human health and biological living environment. my country's annual production of dyes is very large and ranks first in the world, of which 10-15% of dyes will enter rivers and lakes with wastewater, causin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C02F1/72C02F101/30
CPCB01J27/24B01J35/004C02F1/722C02F1/725C02F2101/308
Inventor 熊伟伟朱建南
Owner NANJING UNIV OF TECH
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