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Preparation method for g-C3N4/CuO composite material

A composite material, g-c3n4 technology, applied in the field of preparation of g-C3N4/CuO composite material, can solve the problems of high calcination temperature and high experimental requirements, and achieve the effects of fast reaction speed, high preparation efficiency and low price

Active Publication Date: 2015-06-17
NANJING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the problem with this preparation method is that the experiment requires multi-step reactions, long-term mixing and calcination process, and high calcination temperature. At the same time, the experiment requirements are relatively high, and it needs to be evaporated to dryness by a rotary evaporator.

Method used

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  • Preparation method for g-C3N4/CuO composite material
  • Preparation method for g-C3N4/CuO composite material
  • Preparation method for g-C3N4/CuO composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as Figure 5 As shown, a g-C for catalytic decomposition of ammonium perchlorate 3 N 4 / CuO composite material preparation method, including the following steps: put 0.05 g nano-CuO into 20 ml ethanol solution for ultrasonic dispersion for 10 min, stir continuously during the ultrasonic process, and then add 0.95 g of g-C 3 N 4 Continue to ultrasonically disperse for 10 min, stir continuously during the ultrasonic process, grind it in an agate mortar for 30 min until it becomes a paste, dry it in a vacuum oven at 40 °C, and calcinate it in a tube furnace at 100 °C for 120 min to obtain g-C 3 N 4 / CuO composites.

[0024] g-C prepared by Example 1 3 N 4 / CuO composites scanned by X-ray diffractometer, see figure 1 , g-C 3 N 4 g-C can be clearly seen in the XRD curve of / CuO 3 N 4 The characteristic diffraction peaks of CuO, while the diffraction peaks of CuO are weaker, which is due to the g-C 3 N 4 The content of CuO in the / CuO composite is only 5...

Embodiment 2

[0026] Such as Figure 5 As shown, a g-C for catalytic decomposition of ammonium perchlorate 3 N 4 / CuO composite material preparation method, including the following steps: put 0.1 g nano-CuO into 20 ml ethanol solution for ultrasonic dispersion for 30 min, stir continuously during the ultrasonic process, and then add 0.9 g of g-C 3 N 4 Continue to ultrasonically disperse for 30 min, stir continuously during the ultrasonic process, grind it in an agate mortar for 40 min to a paste, put it in a vacuum oven for drying at 60 °C, and calcinate in a tube furnace at 200 °C for 90 min to obtain g-C 3 N 4 / CuO composites.

[0027] g-C prepared by Example 2 3 N 4 / CuO composite Fourier transform infrared transform spectrum, see figure 2 , as can be seen from the figure, 1645cm -1 、1240cm -1 、1321cm -1 、1411cm -1 、1564cm -1 、807cm -1 for g-C 3 N 4 Infrared absorption characteristic peak; 578cm -1 、544cm -1 and 462cm -1 is the infrared absorption characteristic pea...

Embodiment 3

[0030] Such as Figure 5 As shown, a g-C for catalytic decomposition of ammonium perchlorate 3 N 4 / CuO composite material preparation method, including the following steps: put 0.2 g nano-CuO into 20 ml ethanol solution for ultrasonic dispersion for 60 min, stir continuously during the ultrasonic process, and then add 0.8 g of g-C 3 N 4 Continue to ultrasonically disperse for 60 min, stir continuously during the ultrasonic process, and grind it in an agate mortar for 60 min until it becomes a paste, put it in a vacuum oven and dry it at 70 °C, and then calcinate it in a tube furnace at 400 °C for 60 min to obtain g-C 3 N 4 / CuO composites.

[0031] g-C prepared by Example 3 3 N 4 / CuO composites observed by transmission electron microscopy, see image 3 , CuO deposition dispersed on g-C 3 N 4 A heterojunction structure is formed on the surface.

[0032] Prepared g-C 3 N 4 The performance test of / CuO composite material is as follows: get the g-C that embodiment 3...

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Abstract

The invention discloses a preparation method for a g-C3N4 / CuO composite material. The method comprises the following steps: placing nano-CuO in an ethanol solution to be subjected to ultrasonic dispersion and stirring, adding g-C3N4, performing ultrasonic dispersion continuously, stirring, after completion, grinding in an agate mortar until the mixture is pasty, placing the mixture in a vacuum oven to be dried, and roasting in a tube furnace, so as to obtain the g-C3N4 / CuO composite material. The prepared g-C3N4 / CuO composite material has an excellent catalytic property for thermal decomposition of ammonium perchlorate. Compared with the prior art, the preparation method provided by the invention has the advantages as follows: the source of raw materials is wide, the preparation process is simple, production time is short, preparation efficiency is high, the product cost is effectively reduced, and the preparation method is suitable for industrial mass production.

Description

technical field [0001] The invention belongs to the field of energetic materials and material preparation, in particular to a g-C catalyst used for the catalytic decomposition of ammonium perchlorate 3 N 4 / CuO composite preparation method. Background technique [0002] g-C 3 N 4 It is the most stable material of all carbon nitride allotropes, with obvious layered structure. At the same time, g-C 3 N 4 It has high chemical stability, thermal stability, excellent electrical conductivity and mechanical properties, and has good application prospects in the fields of environment, energy and chemical industry. For example, Wang et al [Wang X C, et al. Nature Materials, 2009,8,76] prepared g-C by calcining melamine 3 N 4 It is used for photolysis of water to produce hydrogen under visible light irradiation, and a new type of material has been found for visible light catalysis. [0003] Ammonium perchlorate (AP) is a high-energy component in composite propellants, and it a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24
Inventor 谈玲华徐建华杭祖圣寇波陈宇郏永强王均李志豪
Owner NANJING INST OF TECH
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