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A direct synthesis of g-c 3 no 4 Method for supporting cerium oxide nanocomposite material

A nanocomposite material, g-c3n4 technology, applied in the direction of chemical instruments and methods, nanotechnology, nanotechnology, etc., to achieve the effect of controllable synthesis

Inactive Publication Date: 2019-07-09
南京睿磐内尔环保复合新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] How to achieve simultaneous g-C 3 N 4 Material preparation and functionalization, which poses a challenge to the preparation technology

Method used

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  • A direct synthesis of g-c <sub>3</sub> no <sub>4</sub> Method for supporting cerium oxide nanocomposite material
  • A direct synthesis of g-c <sub>3</sub> no <sub>4</sub> Method for supporting cerium oxide nanocomposite material
  • A direct synthesis of g-c <sub>3</sub> no <sub>4</sub> Method for supporting cerium oxide nanocomposite material

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Experimental program
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Effect test

Embodiment 1

[0030] Use cerium nitrate as raw material, dissolve it in deionized water to prepare 100 ml, 0.45 mol / L cerium nitrate solution, then add 0.0675 mol of citric acid, stir to dissolve, add ammonium nitrate, adjust the actual oxygen supply and the required oxygen amount of the system The ratio is 0.50; after it is completely dissolved, adjust the pH to 0.5 with 28wt% ammonia water; the obtained solution is heated and stirred in a water bath, and after evaporating part of the water, add melamine designed to synthesize 10% of the mass of cerium oxide, and continue heating and stirring until it solidifies Gelling, to obtain a beige gel, the resulting gel is placed in a vacuum oven at 80 o C is dried to constant weight, obtains xerogel; Gained xerogel is placed in quartz beaker, through 400 o C for about 1 minute to induce combustion, and the combustion products are collected and ground to obtain the final product. The resulting product is dark gray, and the X-ray spectrum of the pr...

Embodiment 2

[0032] Use cerium nitrate as raw material, dissolve it in deionized water to prepare 100 ml, 0.25 mol / L cerium nitrate solution, then add 0.0375 mol of citric acid, stir to dissolve, add ammonium nitrate, adjust the actual oxygen supply and the required oxygen amount of the system The ratio is 0.50; after it is completely dissolved, adjust the pH to 0.9 with 28wt% ammonia water; the obtained solution is heated and stirred in a water bath, and after evaporating part of the water, add melamine designed to synthesize 40% of the mass of cerium oxide, and continue heating and stirring until it solidifies Gelling to obtain a beige gel, the resulting gel is placed in a vacuum oven for 60 o C is dried to constant weight, obtains xerogel; Gained xerogel is placed in quartz beaker, through 400 o C for about 1 minute to induce combustion, and the combustion products are collected and ground to obtain the final product. The resulting product is dark gray, and the X-ray spectrum of the pr...

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Abstract

The invention relates to the technical field of functional composite materials, and particularly relates to a method for directly synthesizing a g-C3N4 loaded cerium oxide nano composite material. The method adopts a sol-gel spontaneous combustion direct synthesis process, and takes cerium nitrate as an initial raw material, accompanied by taking nitrate as oxidizer and citric acid as complexing agent. The method comprises the following steps: adding melamine in the sol-gel transition process; heating to evaporate and remove solvent so as to obtain gel; and further drying the obtained gel, and performing induced combustion to directly generate the g-C3N4 loaded cerium oxide nano composite material. The invention is directed to synthesis and functionalization of the graphene-like g-C3N4 material, realizes quick and controllable synthesis, and provides an efficient path for g-C3N4 functionalization in the prior art; and meanwhile, the method also can provide a process reference for implementation of organic-inorganic nano composites.

Description

technical field [0001] The invention relates to the technical field of functional composite materials, in particular to a direct synthesis of g-C 3 N 4 Method for supporting cerium oxide nanocomposites. Background technique [0002] g-C 3 N 4 Due to the graphene-like structure of the material, the electrical and magnetic structures can be regulated after functional modification, resulting in excellent electrical, optical, magnetic and catalytic properties. Therefore for g-C 3 N 4 material, so that it can be used as a functional material, it is necessary to achieve g-C 3 N 4 Exfoliation of lamellar structures and functionalization of graphene-like structures. Generally, the commonly used method can obtain g-C by heating and polymerizing melamine under the protection of the atmosphere first, and peeling off. 3 N 4 Materials; g-C can be realized by further methods such as surface deposition of metal ions or chemical modification of surface groups 3 N 4 Functional mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B21/082C01F17/00B82Y30/00
CPCB82Y30/00C01B21/0605C01F17/206C01P2002/72C01P2002/82C01P2004/04C01P2004/80
Inventor 刘俊亮杨敏王绳芸于萍史斌张明张旭
Owner 南京睿磐内尔环保复合新材料有限公司
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