Preparation method of cobalt oxide/cobalt diselenide heterostructure loaded C3N4 composite material

A heterogeneous structure, cobalt diselenide technology, applied in the direction of nickel oxide/nickel hydroxide, chemical instruments and methods, nitrogen compounds, etc., can solve the problems of high cost and affecting large-area use, and achieve uniform size and mobility The effect of large, singular mobility

Active Publication Date: 2021-09-28
HEILONGJIANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, g-C in patents and literature reports 3 N 4 The preparation method of composite materials is mainly based on the high-temperature thermal decomposition method with high cost. Due to the high cost, its large-area use is affected, and it is mainly based on the research of photoelectric properties. The simple method is used to prepare heterostructure materials and g-C 3 N 4 Reports on compounding and studying electromagnetic properties are rare

Method used

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  • Preparation method of cobalt oxide/cobalt diselenide heterostructure loaded C3N4 composite material
  • Preparation method of cobalt oxide/cobalt diselenide heterostructure loaded C3N4 composite material
  • Preparation method of cobalt oxide/cobalt diselenide heterostructure loaded C3N4 composite material

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Embodiment 1

[0036] A preparation method of a cobalt oxide / cobalt diselenide heterostructure-loaded C3N4 composite material is completed according to the following steps:

[0037] 1. Disperse Se powder in octadecene by ultrasonic disperser to obtain Se powder organic solvent dispersion. The mass fraction of Se powder in the described Se powder-octadecene solution is 10%, and the dispersion time is 60min;

[0038] Second, the g-C 3 N 4 Disperse into ethanol, then disperse into octadecene, and heat to remove ethanol. the g-C 3 N 4 The mass fraction of ethanol is 1%; the volume ratio of ethanol and octadecene is 1:2;

[0039] 3. Dispersing the cobalt source into oleylamine to obtain a cobalt dispersion solution; the cobalt source is cobalt acetate. The mass fraction of the cobalt acetate is 10%;

[0040] 4. ① Heat the Se powder solution to 80°C to obtain the reaction solution I;

[0041] ② put g-C 3 N 4 The dispersion liquid is heated to 80 ℃ to obtain the reaction liquid II;

[00...

Embodiment 2

[0049] A preparation method of a cobalt oxide / cobalt diselenide heterostructure-loaded C3N4 composite material is completed according to the following steps:

[0050] 1. Disperse the Se powder in octadecene through an ultrasonic disperser to obtain a Se powder organic solvent dispersion. The mass fraction of Se powder in the described Se powder-octadecene solution is 10%, and the dispersion time is 60min;

[0051] Second, the g-C 3 N 4 Disperse into ethanol, then put the dispersion into octadecene, and heat to remove the ethanol. the g-C 3 N 4 The mass fraction is 1%; the volume ratio of described ethanol and octadecene is 1:2;

[0052] 3. Dispersing the cobalt source into oleylamine to obtain a cobalt dispersion solution; the cobalt source is cobalt acetate. The mass fraction of the cobalt acetate is 10%;

[0053] 4. ① Heat the Se powder solution to 80°C to obtain the reaction solution I;

[0054] ② put g-C 3 N 4 The dispersion liquid is heated to 80 ℃ to obtain the...

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Abstract

The invention discloses a preparation method of a cobalt oxide/cobalt diselenide heterostructure loaded C3N4 composite material, and belongs to the field of C3N4-based composite material preparation. The method comprises the following steps: dispersing Se powder in a high-boiling-point organic solvent to obtain Se powder dispersion liquid; dispersing a cobalt source into a low-boiling-point organic solvent, putting into a high-boiling-point organic solvent, and heating to remove the low-boiling-point solvent; heating the Se powder dispersion liquid to obtain a reaction liquid I; adding the g-C3N4 into a low-boiling-point organic solvent, then adding into a high-boiling-point organic solvent, and completely removing the low-boiling-point solvent to obtain a reaction solution III; heating the cobalt source solution to obtain a reaction solution IV; mixing the reaction solution I, the reaction solution III and the reaction solution IV for hydrothermal treatment; and after heptane is added, carrying out suction filtration, cleaning and vacuum drying. The dielectric property of the prepared material is suitable for being used as an electromagnetic wave absorbing material, and the electromagnetic wave absorbing property of the material can be adjusted and controlled by adjusting the loading capacity and the size.

Description

technical field [0001] The invention belongs to carbon three nitrogen four (g-C 3 N 4 )-based composite material preparation field, in particular to a cobalt oxide / cobalt diselenide (CoO / CoSe 2 ) heterostructure supported carbon trinitrotetramine (g-C 3 N 4 ) preparation method of composite material. Background technique [0002] Graphitized carbon nitride (g-C 3 N 4 ) due to its unique structure and excellent properties, it has received extensive attention in research and applications, and its potential value in energy, catalysis, sensing and other fields has been continuously developed. application has achieved important results. g-C 3 N 4 Effective compounding with other different materials can further improve its physical and chemical properties, so that g-C 3 N 4 The application field is wider. [0003] Chinese patent "Three-dimensional porous Co-C 3 N 4 The preparation method of "(Publication number: CN110120514B) prepared g-C by sintering raw materials c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/04C01B19/04C01B21/082H05K9/00
CPCC01B21/0605C01G53/04C01B19/007H05K9/0081C01P2004/80C01P2002/72C01P2004/04
Inventor 张丰发布和巴特尔谭雪飞董媛媛王巍张晓萌史鹏刘超张晓晨齐海群
Owner HEILONGJIANG INST OF TECH
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