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Preparation method and application of carbonyl functionalized graphite phase carbon nitride

A graphitic carbon nitride, carbonyl functional technology, applied in the field of photocatalytic materials, can solve the problems of weak photocatalytic performance, low quantum efficiency, small specific surface area, etc., and achieve outstanding economic benefits, enhanced photocatalytic activity, and preparation technology. simple effect

Pending Publication Date: 2022-03-01
HEFEI UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems of low quantum efficiency, small specific surface area, and poor photocatalytic performance in the existing graphite-phase carbon nitride materials in the sewage treatment process, the present invention provides a method for preparing carbonyl-functionalized graphite-phase carbon nitride and its application

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  • Preparation method and application of carbonyl functionalized graphite phase carbon nitride
  • Preparation method and application of carbonyl functionalized graphite phase carbon nitride
  • Preparation method and application of carbonyl functionalized graphite phase carbon nitride

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preparation example Construction

[0028] Such as figure 1 As shown, the preparation method of a carbonyl functionalized graphite phase carbon nitride provided in this embodiment comprises the following steps:

[0029] According to the mass ratio of 20g:(5-5000) mg, carbon nitride precursor and pyrimidine compound are prepared as raw materials; after the raw materials are fully mixed, the temperature is raised to 500-700°C, and then the temperature is thermally polymerized for 1-5h, and the temperature rise rate is controlled. 2.5-10° C. / min; after the reaction, the product is naturally cooled to room temperature to obtain the desired carbonyl-functionalized graphite-phase carbon nitride material.

[0030] Wherein, the carbon nitride precursor can be selected from one or more of cyanamide, thiourea, dicyandiamide, melamine and urea. The most preferred solution is to use urea. The pyrimidine compound can be selected from one or more of uracil, cytosine, thymine and thiouracil.

Embodiment 1

[0032] Take 20g of cyanamide and 100mg of thiouracil, mix them well and put them into a crucible, then put them into a muffle furnace, and raise the temperature of the muffle furnace and its inner crucible to 550°C at a heating rate of 5°C / min ; And insulation reaction 2h. After the reaction, the muffle furnace was naturally cooled to room temperature, and the obtained dry product was the desired carbonyl-functionalized graphite phase carbon nitride material, denoted as UCN-1.

Embodiment 2

[0034] Take 20g of thiourea and 2g of cytosine, mix them well and put them into a crucible, then put them into a muffle furnace, and raise the temperature of the muffle furnace and the crucible inside to 500°C at a heating rate of 2.5°C / min; and Insulation reaction 1h. After the reaction, the muffle furnace was naturally cooled to room temperature, and the obtained dry product was the desired carbonyl-functionalized graphite-phase carbon nitride material, denoted as UCN-2.

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Abstract

The invention belongs to the field of photocatalytic materials, and particularly relates to a preparation method of carbonyl functionalized graphite phase carbon nitride, application of carbonyl functionalized graphite phase carbon nitride and a sewage treatment method. The preparation method of the carbonyl functionalized graphite phase carbon nitride comprises the following steps: preparing a carbon nitride precursor and a pyrimidine compound as raw materials according to a mass ratio of 20g: (5-5000) mg; the preparation method comprises the following steps: fully and uniformly mixing the raw materials, heating to 500-700 DEG C, carrying out constant-temperature thermal polymerization reaction for 1-5 hours, and naturally cooling a product to room temperature after the reaction is finished, so as to obtain the required carbonyl functionalized graphite-phase carbon nitride material. The carbon nitride precursor is cyanamide, thiourea, dicyandiamide, melamine and urea; the pyrimidine compound is selected from uracil, cytosine, thymine and thiouracil. The problems that an existing graphite phase carbon nitride material is low in quantum efficiency, small in specific surface area and low in photocatalytic activity in the sewage treatment process are solved.

Description

technical field [0001] The invention belongs to the field of photocatalytic materials, and in particular relates to a preparation method of carbonyl-functionalized graphite-phase carbon nitride, an application of carbonyl-functionalized graphite-phase carbon nitride, and a sewage treatment method. Background technique [0002] The rapid development of modern industry has brought convenience to human production and life, but it has also caused increasingly serious environmental pollution problems. For example, in the chemical or pharmaceutical industries, a large amount of organic compounds are produced and consumed, and at the same time enter into nature through various channels, causing soil and water pollution. Certain organic compounds have the characteristics of high solubility, stability, and durability in water bodies, so they are easy to accumulate in natural water bodies such as lakes, rivers, and reservoirs, causing serious pollution problems. In addition, conventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C02F1/30C02F1/72C02F101/30C02F101/38
CPCB01J27/24C02F1/30C02F1/725C02F2305/10C02F2101/30C02F2101/38B01J35/39
Inventor 崔敏姝崔康平刘雪岩陈星
Owner HEFEI UNIV OF TECH