Method for preparing graphite-phase carbon nitride visible-light-induced photocatalyst through copolymerization of 2-aminoterephthalic acid and amine compound

An amino terephthalic acid, graphitic carbon nitride technology, applied in nitrogen and non-metallic compounds, physical/chemical process catalysts, chemical instruments and methods, etc. problems such as low catalytic activity, to achieve the effects of low cost, optimized chemical composition, and simple synthesis process

Active Publication Date: 2019-06-14
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But g-C 3 N 4 The internal layers are not arranged strictly according to the ideal graphite phase, but the layers are stacked, so the actual specific surface area is often low, and the electron-hole pairs generated by photoexcitation recombine too fast and cannot effectively reduce hydrogen ions.
The above reasons lead to g-C 3 N 4 The photocatalytic activity of the photocatalyst is low, and it is urgent to find effective modification methods to further improve the photocatalytic hydrogen production capacity.

Method used

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  • Method for preparing graphite-phase carbon nitride visible-light-induced photocatalyst through copolymerization of 2-aminoterephthalic acid and amine compound
  • Method for preparing graphite-phase carbon nitride visible-light-induced photocatalyst through copolymerization of 2-aminoterephthalic acid and amine compound
  • Method for preparing graphite-phase carbon nitride visible-light-induced photocatalyst through copolymerization of 2-aminoterephthalic acid and amine compound

Examples

Experimental program
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Effect test

Embodiment 1

[0038] 10 g of urea and 0.5 mg of 2-aminoterephthalic acid were dissolved in 20 mL of deionized water to form a transparent mixed solution, which was stirred and evaporated to dryness in a water bath at 70°C. The resulting mixture was ground evenly in a mortar, added to a 50mL crucible with a cover, and then the crucible was placed in an ash furnace, and the temperature was raised from room temperature to 550 °C at a heating rate of 5 °C / min, kept for 4 hours, and naturally cooled to room temperature . That is, a new type of graphite-phase carbon nitride copolymerized is obtained, and the performance test is to be performed.

Embodiment 2

[0040] 10 g of urea and 1 mg of 2-aminoterephthalic acid were dissolved in 20 mL of deionized water to form a transparent mixed solution, which was stirred and evaporated to dryness in a water bath at 70°C. The resulting mixture was ground evenly in a mortar, added to a 50mL crucible with a cover, and then the crucible was placed in an ash furnace, and the temperature was raised from room temperature to 550 °C at a heating rate of 5 °C / min, kept for 4 hours, and naturally cooled to room temperature . That is, a new type of graphite-phase carbon nitride copolymerized is obtained, and the performance test is to be performed.

Embodiment 3

[0042]10 g of urea and 3 mg of 2-aminoterephthalic acid were dissolved in 20 mL of deionized water to form a transparent mixed solution, which was stirred and evaporated to dryness in a water bath at 70°C. The resulting mixture was ground evenly in a mortar, added to a 50mL crucible with a cover, and then the crucible was placed in an ash furnace, and the temperature was raised from room temperature to 550 °C at a heating rate of 5 °C / min, kept for 4 hours, and naturally cooled to room temperature . That is, a new type of graphite-phase carbon nitride copolymerized is obtained, and the performance test is to be performed.

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Abstract

The invention relates to a method for preparing a graphite-phase carbon nitride visible-light-induced photocatalyst by copolymerization of 2-aminoterephthalic acid and an amine compound. The method comprises the following steps: uniformly mixing the amine compound and the 2-aminoterephthalic acid to obtain mixed powder, and calcining the mixed powder at 520-600 DEG C to obtain the graphite-phase carbon nitride visible-light-induced photocatalyst. The preparation method is simple, and the obtained novel graphite-phase carbon nitride has better visible light catalytic hydrogen production performance compared with original carbon nitride.

Description

technical field [0001] The invention relates to a method for preparing a graphite-phase carbon nitride visible light catalyst by copolymerizing 2-aminoterephthalic acid and an amine compound, and belongs to the field of energy material preparation and photocatalysis. Background technique [0002] Today's human society is facing two major problems of energy and environment. Energy shortage and environmental pollution seriously restrict the development of human society. On the one hand, the rapid development of society has made human beings have an increasing demand for energy, and the energy we currently use is still dominated by traditional fossil fuels, but because of the non-renewability of fossil fuels, they will be exhausted one day. On the other hand, the combustion of fossil fuels has caused serious environmental pollution and harm to the environment, such as the greenhouse effect, acid rain, photochemical smog, etc., which pose a serious threat to human survival. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J37/08C01B21/082C01B3/04
CPCY02E60/36
Inventor 师进文程诚毛柳浩郭烈锦
Owner XI AN JIAOTONG UNIV
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