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Preparation method of carbon nitride photocatalytic material with carbon defects and oxygen doping and application of carbon nitride photocatalytic material in removal of tetracycline in water body

A catalytic material and oxygen doping technology, applied in chemical instruments and methods, physical/chemical process catalysts, water treatment of special compounds, etc., can solve the problems of cumbersome steps, organic solvents, high cost, environmental impact, etc., and achieve rich surface reactions , Simple preparation and efficient removal effect

Pending Publication Date: 2022-06-03
HANGZHOU XINGYU CARBON TECH GREEN CO LTD
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Problems solved by technology

The above method prepares carbon nitride nanomaterials with different shapes and structures and excellent performance, but the preparation method is cumbersome and involves the use of organic solvents, which has a certain impact on the environment and high cost

Method used

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  • Preparation method of carbon nitride photocatalytic material with carbon defects and oxygen doping and application of carbon nitride photocatalytic material in removal of tetracycline in water body
  • Preparation method of carbon nitride photocatalytic material with carbon defects and oxygen doping and application of carbon nitride photocatalytic material in removal of tetracycline in water body
  • Preparation method of carbon nitride photocatalytic material with carbon defects and oxygen doping and application of carbon nitride photocatalytic material in removal of tetracycline in water body

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Embodiment

[0023] One of the embodiments: carbon -containing and oxygen -doping carbon -nitride catalytic materials are used in the application of antibiotics in the aquatic body. The antibiotics are tetracycline. The application is as follows:

[0024] Based on CN and CNO-6 as the catalyst, as follows.

[0025] 1. Scan the CN electronic microscopy symbol, such as figure 1 (A) and and figure 1 (B) Show, the result is manifested: CN shows random particle structure with a size of hundreds of nanometers (NM) to a few micrometers (µm);

[0026] 2. Energy scattering analyzes the elements of CN and CNO-6 samples. It is found that the CNO-6 sample content in the CNO-6 sample is significantly lower than the C content in CN -6 reached 6.7 A.T%, which is much higher than 0.9 A.T%in CN, indicating that the C -defect formed by the formation is replaced by O element. Based on the result of energy scattering spectrum, we concluded that the CNO-6 has the surface state of carbon-containing defects and hypox...

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Abstract

The invention discloses a preparation method of a carbon nitride photocatalytic material containing carbon defects and oxygen doping and application of the carbon nitride photocatalytic material in removal of tetracycline antibiotics in water, and is characterized in that commercial urea crystals are ground into uniform fine particles, and then the particles are sealed in an alumina crucible; raising the temperature to 550 DEG C from the room temperature program in a quartz tube furnace, and keeping the constant temperature for 3 hours to prepare pure-phase carbon nitride (CN); and finally, respectively keeping the pure-phase carbon nitride at 180 DEG C for a certain time (4, 6, 8 and 10 hours), and cooling to room temperature to obtain the carbon nitride photocatalytic material containing carbon defects and oxygen doping. The preparation method of the oxygen-doped carbon nitride material containing carbon defects can avoid the agglomeration and stacking phenomena of nano materials. The preparation method is simple, time-saving, green, environment-friendly, energy-saving and controllable, and has a relatively large specific surface area and abundant surface reaction sites. Under the visible light condition, the material can efficiently remove tetracycline antibiotics in a water body and has excellent stability.

Description

Technical field [0001] The present invention involves the preparation technology of photocatalytic materials, especially the preparation of carbon -containing defects and hyunctified carbonide catalytic materials and the application of tetrain antibiotics in the water body. Background technique [0002] In addition to traditional pollutants, emerging micro -pollutants have attracted more and more attention in recent years. Emerging micro -pollutants mainly include drugs and personal care products, endocrine interferon, drinking water disinfection by -products, artificial sweeteners and ionic liquids. Antibiotic drugs are one of the important members of the family of drugs and personal care products, because it can prevent animals and plants from being widely used in prevention and treatment of various diseases. Antibiotics are difficult to decompose in ecological environments such as animals and plants, water bodies, and soil. It mainly enters the environment in the form of origi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C02F1/30C02F101/38C02F101/34
CPCB01J27/24C02F1/30C02F2305/10C02F2101/38C02F2101/34B01J35/23B01J35/39Y02E60/36
Inventor 洪波曾云雄张昊徐靖才詹兴宇
Owner HANGZHOU XINGYU CARBON TECH GREEN CO LTD
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