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Preparation method of metal-doped black amorphous-state carbon nitride photocatalytic material

A technology of metal doping and catalytic materials, which is applied in the directions of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., to achieve the effects of simple operation, low cost, and large-scale commercial application.

Inactive Publication Date: 2018-11-27
SOUTHWEST PETROLEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Preparation method of metal-doped black amorphous-state carbon nitride photocatalytic material
  • Preparation method of metal-doped black amorphous-state carbon nitride photocatalytic material
  • Preparation method of metal-doped black amorphous-state carbon nitride photocatalytic material

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Embodiment 1

[0025] (1) Mix melamine and ammonium molybdate in a ratio of 100:5.5;

[0026] (2) The above mixture was heated in a tube furnace at 10°C / min to 550°C for 4 hours and then naturally cooled to room temperature to obtain a metal-doped black amorphous carbon nitride photocatalytic material.

Embodiment 2

[0028] (1) Mix melamine and sodium tungstate at a ratio of 100:10.4;

[0029] (2) The above mixture was heated in a tube furnace at 10°C / min to 550°C for 4 hours and then naturally cooled to room temperature to obtain a metal-doped black amorphous carbon nitride photocatalytic material.

Embodiment 3

[0031] (1) Melamine and nickel acetate are mixed in a ratio of 100:7.9;

[0032] (2) The above mixture was heated in a tube furnace at 10°C / min to 550°C for 4 hours and then naturally cooled to room temperature to obtain a metal-doped black amorphous carbon nitride photocatalytic material.

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Abstract

The invention provides a preparation method of a metal-doped black amorphous-state carbon nitride photocatalytic material. The preparation method comprises the following steps: (1) mixing nitrogen-rich organic matters with metal salt in a certain proportion; and (2) putting the mixture into a tube furnace, heating to 400-700 DEG C in a speed of 1DEG C / min-50DEG C / min, maintaining the temperature for 1-20 minutes, and naturally cooling to the room temperature, so as to obtain the metal-doped black amorphous-state carbon nitride photocatalytic material. According to the preparation method, the amorphous conversion of carbon nitride is induced through monatomic metals based on a solid phase high temperature pyrolysis method so as to synthesize the metal-doped black amorphous-state carbon nitride photocatalytic material with excellent visible photocatalytic activity. The synthetic method is simple, efficient and low in cost, an additional catalyst, an organic solvent and other expensive orenvironmentally harmful regents do not need to be added, and meanwhile, the raw materials do not need to be pretreated, so that the preparation method is beneficial to large-scale commercial production.

Description

technical field [0001] The invention relates to the technical field of carbon nitride material preparation, in particular to a method for preparing a metal-doped black amorphous carbon nitride photocatalytic material used for photocatalysis. Background technique [0002] Photocatalytic technology can convert clean and renewable solar energy into chemical energy and achieve zero carbon emissions. It can not only effectively purify pollutants, but also alleviate the energy crisis. Therefore, photocatalytic technology is considered to be one of the most ideal technologies for future world development. one. In order to achieve this goal, the preparation of highly active photocatalytic materials has become an urgent problem to be solved. Graphite phase carbon nitride is a graphene-like non-metallic photocatalytic material, mainly composed of nitrogen atoms and carbon atoms, with simple preparation process, adjustable energy band structure, excellent heat resistance and chemical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J37/08
CPCB01J27/24B01J35/004B01J37/08B01J19/14B01J37/084B01J35/002B01J31/0244B01J31/0245B01J31/0235B01J31/34B01J37/04B01J37/082
Inventor 周莹张瑞阳李鹏辉张骞于姗王芳
Owner SOUTHWEST PETROLEUM UNIV
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