Copper oxide/graphene composite material, preparation method thereof and application of composite material

A composite material and graphene technology, applied in chemical instruments and methods, alkali metal oxides/hydroxides, separation methods, etc., can solve problems such as difficult to effectively remove pollutants, expensive equipment, complicated methods, etc., and achieve good results The effect of application prospect, simple preparation process and cheap price

Active Publication Date: 2017-12-01
厦门捌斗新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] CN 105118682 A discloses a preparation method and application of composite particles composed of activated carbon and graphene hybrids. The method takes full advantage of the excellent adsorption properties of carbon nanomaterials and can adsorb gases or liquid hydrocarbons. However, the method still Staying at the level of physical adsorption, it is difficult to effectively remove the adsorbed pollutants
CN 103691251 B discloses a method for graphene to adsorb and decompose organic waste gas. The method uses multi-layer graphene or modified graphene as an adsorption material to adsorb and catalyze organic waste gas. However, this method requires the use of ultraviolet light, plasma, etc. Pretreatment of organic waste gas is complicated and expensive

Method used

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  • Copper oxide/graphene composite material, preparation method thereof and application of composite material
  • Copper oxide/graphene composite material, preparation method thereof and application of composite material
  • Copper oxide/graphene composite material, preparation method thereof and application of composite material

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Effect test

Embodiment 1

[0027] (1) Add 2g of graphene oxide into 200mL of deionized water, and ultrasonically disperse. The ultrasonic treatment time is 60min, and the ultrasonic power is 150W, to obtain a graphene oxide dispersion;

[0028] (2) Add 25g of copper nitrate trihydrate into 100mL of deionized water, and slowly add 12mol / L of concentrated ammonia water dropwise while stirring to adjust the pH value to 9 to form a stable copper ammonia solution [Cu(NH 3 ) 4 (H 2 O) 2 ] 2+ ;

[0029] (3) Add the cuproammonia solution described in step (2) into the graphene oxide dispersion described in step (1), stir at room temperature for 30 min, and then o Continue heating under C condition for 2h; Then reactant is transferred to the autoclave with tetrafluoroethylene liner, at 180 oC Under carry out 5h hydrothermal reduction reaction;

[0030] (4) After the reaction solution in step (3) dropped to room temperature, the supernatant was removed, and the solid was washed with deionized water, suctio...

Embodiment 2

[0032] (1) Add 1g of graphene oxide into 200mL of deionized water, and ultrasonically disperse it. The ultrasonic treatment time is 30min, and the ultrasonic power is 150W, to obtain a graphene oxide dispersion;

[0033] (2) Add 17g of copper nitrate trihydrate into 100mL of deionized water, and slowly add 12mol / L of concentrated ammonia water dropwise while stirring to adjust the pH value to 9.5 to form a stable copper ammonia solution [Cu(NH 3 ) 4 (H 2 O) 2 ] 2+ ;

[0034] (3) Add the cuproammonia solution described in step (2) into the graphene oxide dispersion described in step (1), stir at room temperature for 50 min, and then o Continue heating under C condition for 2h; Then reactant is transferred to the autoclave with tetrafluoroethylene liner, at 150 oC Under carry out 8h hydrothermal reduction reaction;

[0035] (4) After the reaction solution in step (3) dropped to room temperature, the supernatant was removed, and the solid was washed with deionized water, f...

Embodiment 3

[0037] (1) Add 1g of graphene oxide into 200mL of deionized water, and ultrasonically disperse it. The ultrasonic treatment time is 60min, and the ultrasonic power is 150W, to obtain a graphene oxide dispersion;

[0038] (2) Add 10g of copper nitrate trihydrate into 100mL of deionized water, and slowly add 12mol / L of concentrated ammonia water dropwise while stirring to adjust the pH value to 9.2 to form a stable copper ammonia solution [Cu(NH 3 ) 4 (H 2 O) 2 ] 2+ ;

[0039] (3) Add the cuproammonia solution described in step (2) into the graphene oxide dispersion described in step (1), stir at room temperature for 60 min, and then o Continue heating under C condition for 2h; Then reactant is transferred to the autoclave with tetrafluoroethylene liner, at 180 oC Under carry out 8h hydrothermal reduction reaction;

[0040] (4) After the reaction solution in step (3) dropped to room temperature, the supernatant was removed, and the solid was washed with deionized water, fil...

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Abstract

The invention discloses a copper oxide/graphene composite material, a preparation method thereof and an application of the composite material, and belongs to the technical field of composite materials and air purification. According to the preparation method, graphene oxide acquired by a modified Hummers method serves as a carrier, copper oxide is slowly precipitated on the graphene oxide from pre-prepared copper ammonia solution and combined with an oxygen-containing group on the graphene oxide to form a stable copper oxide/graphene oxide composite material, hydrothermal reaction of the copper oxide/graphene oxide composite material is performed, so that the graphene oxide is reduced into graphene, and the grapheme is filtered, washed, freeze-dried and calcined to prepare the copper oxide/graphene composite material. The preparation method has good application prospect and the advantages that price of raw materials is low, preparation process is simple, the composite material can be repeatedly used and the like. The copper oxide/graphene composite material is applied to removing of formaldehyde and can be repeatedly used after simple heat treatment of the composite material is performed at the temperature ranging from 100 DEG C to 150 DEG C.

Description

technical field [0001] This patent relates to the technical field of composite materials and air purification, specifically a copper oxide / graphene composite material and its preparation method and application. Background technique [0002] Volatile organic compounds (VOC) are an important factor of indoor air pollution, and formaldehyde is one of the most important indoor volatile organic pollutants. It not only stimulates people's respiratory system, but also is a carcinogen. Long-term exposure to formaldehyde will Seriously affect the health of human beings, especially children. Activated carbon is widely used for physical adsorption to remove formaldehyde in the air, but its adsorption capacity for formaldehyde is limited. When the adsorption reaches saturation, the formaldehyde on the surface of activated carbon will re-diffuse into the air, causing secondary pollution. Therefore, the correct way to remove formaldehyde should be chemical adsorption of formaldehyde. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02B01J20/30B01J20/20B01J20/28B01J20/34
CPCB01D53/02B01D2253/102B01D2253/1124B01D2257/704B01D2257/708B01D2258/06B01J20/06B01J20/205B01J20/28033B01J20/3416B01J20/3483
Inventor 许超郑泉兴许锐卢成浩
Owner 厦门捌斗新材料科技有限公司
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