A kind of preparation method of doped graphitic carbon nitride material

A technology of carbon nitride and graphite, applied in the field of preparation of graphitic carbon nitride, can solve the problems of limiting the performance of graphite carbon nitride materials, no photocatalytic activity, low photocatalytic activity, etc., and is convenient for large-scale industrialization. The effect of producing, improving photocatalytic activity, and high photocatalytic activity
CN110813343BActive Publication Date: 2020-12-01SHANGHAI JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI JIAOTONG UNIV
Publication Date
2020-12-01

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Abstract

The invention discloses a method for preparing doped graphite-like carbon nitride materials; using metal organic matter with sublimation or low boiling point characteristics (such as acetylacetone complex, bis(2,2,6,6-tetramethyl-3 , 5-heptanedione) copper, bis(hexafluoroacetylacetonate) copper, ferrocene, copper formate, metal carbonyl compound) in the polycondensation process of graphite carbon nitride nitrogen-rich precursor, metal ions and anions gas phase Co-doping control; during the heating and polycondensation process, the precursors of metal organic salts and graphite carbon nitride are partitioned, the control pressure is 0.1-20MPa, the heating rate is 1-30℃ / min, and the temperature is maintained at 450-600℃ for 2- 6h, the graphite carbon nitride is obtained. This method is based on a gas-phase co-doping method, which can efficiently and quickly obtain doped graphite-like carbon nitride with a hierarchical pore structure; the obtained material is highly active in the photocatalytic decomposition of water and the catalytic degradation of organic matter.
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Description

technical field

[0001] The present invention relates to the preparation of graphite-phase carbon nitride, in particular to a one-step preparation method for gas-phase doping of metal-organic salts based on sublimation characteristics and regulation and control of modified graphite-like carbon nitride materials, which is used for photocatalytic technology to decompose water to produce hydrogen, Photocatalytic decomposition of organic pollutants such as VOC, S-VOC in the field. Background technique

[0002] In today's society, among the many ways to seek renewable energy, photocatalytic technology is considered to be one of the most promising technologies for converting sunlight energy into hydrogen energy, and it also provides a feasible idea for solving environmental problems. Graphite carbon nitride, as a non-metallic n-type semiconductor polymer, has many excellent electrical, optical and physicochemical properties. Photocatalysts based on graphitic carbon nitride have at...

Claims

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