Preparation and application of phosphorus-doped graphite carbon nitride/ferroferric oxide composite material

A technology of graphitic carbon nitride and iron tetroxide, which is applied in chemical/physical processes, oxidized water/sewage treatment, special compound water treatment, etc. low rate issues
CN112934249AActive Publication Date: 2021-06-11NORTHWEST NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHWEST NORMAL UNIVERSITY
Publication Date
2021-06-11

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Abstract

The invention provides a preparation method of a phosphorus-doped graphite carbon nitride / ferroferric oxide composite material, which comprises the following steps: grinding and fully mixing urea and dipotassium phosphate, heating the materials to 500-600 DEG C in a muffle furnace at a heating rate of 2.3 DEG C / min, calcining the materials for 2-5 hours, cooling the product to room temperature, adding the product into distilled water for dissolving, and carrying out ultrasonic treatment, centrifuging, washing and drying to obtain light yellow solid CNP; then dissolving CNP and FeCl36H2O in an ethylene glycol solution to obtain a light yellow solution, then adding hydrazine hydrate, uniformly stirring and mixing the components, carrying out hydrothermal reaction at 180-200 DEG C for 10-12 hours, centrifuging the reaction product, washing with deionized water and ethanol, and carrying out vacuum drying to obtain the phosphorus-doped g-C3N4 / Fe3O4 composite material marked as CNP / Fe3O4. Phosphorus doping in the composite material effectively improves the light response capability, widens the light absorption range, and promotes the separation of photo-induced electrons and hole pairs. Compared with a material not doped with phosphorus, the degradation of tetracycline hydrochloride by the composite material is obviously enhanced.
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Description

technical field

[0001] The invention relates to a method for preparing a phosphorus-doped graphite carbon nitride / iron tetroxide composite material. The phosphorus-doped graphite carbon nitride / iron tetroxide composite material is mainly used as a photocatalyst for photocatalytic degradation of tetracycline hydrochloride . Background technique

[0002] With the rapid development and progress of human society, energy shortage and environmental pollution are becoming more and more serious. Antibiotic wastewater is a kind of refractory wastewater in industry, with high concentration and complex composition. After tetracycline antibiotics enter the human body, they will endanger the hematopoietic function of the human body, interfere with hormone balance, and even cause cancer. Excessive and long-term use of antibiotics will bring great harm to human health. Therefore, finding an efficient, economical and stable catalyst becomes more important. Advanced Oxidative Processes (A...

Claims

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