Reducing-oxidized graphene/amorphous carbon composite material loading Cu/Cu2O photocatalyst as well as preparation method and application of composite material

An amorphous carbon and photocatalyst technology, applied in the field of composite materials, can solve the problems of limited types of organic matter, unfavorable industrial promotion, unfavorable industrial application, etc., and achieve good visible light absorption characteristics, wide application value, and good effect

Active Publication Date: 2015-10-07
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In summary, at present, the method for treating organic wastewater still has the following problems: (1) the preparation process is complicated, and the post-treatment process is various, which is not conducive to industrial application; (2) high energy consumption is not conducive to energy conservation; (3) the treatment The types of organic matter are limited and the scope of application is narrow; (4) The cost of the treatment process is high, which is not conducive to industrialization

Method used

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  • Reducing-oxidized graphene/amorphous carbon composite material loading Cu/Cu2O photocatalyst as well as preparation method and application of composite material
  • Reducing-oxidized graphene/amorphous carbon composite material loading Cu/Cu2O photocatalyst as well as preparation method and application of composite material
  • Reducing-oxidized graphene/amorphous carbon composite material loading Cu/Cu2O photocatalyst as well as preparation method and application of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Preparation of reduced graphene oxide / amorphous carbon substrate dispersion: dissolve glucose in an aqueous solution of graphene oxide, and stir at room temperature for 2 hours to obtain a mixed solution of graphene oxide and sugar, wherein: the sugar solution in the mixed solution The concentration of the graphene solution is 10mg / mL, and the concentration of the graphene solution is 0.3mg / mL. The mixture is poured into an autoclave, subjected to a hydrothermal reaction at 180°C for 6 hours, and cooled naturally to room temperature to obtain reduced graphene oxide / free Shaped carbon based dispersions;

[0034] (2) Load Cu / Cu 2 The preparation of the reduced graphene oxide / amorphous carbon composite material of O photocatalyst: a certain amount of copper sulfate is added in the reduced graphene oxide / amorphous carbon substrate dispersion liquid prepared in step 1 (per mL reduced graphene oxide / Add 0.002g of copper sulfate to the amorphous carbon substrate dispersi...

Embodiment 2

[0037] (1) Preparation of reduced graphene oxide / amorphous carbon substrate dispersion: dissolve konjac starch in an aqueous solution of graphene oxide, stir at 60° C. for 2 hours, and cool to room temperature naturally to obtain a mixed solution of graphene oxide and sugar, Among them: the concentration of the sugar solution is 10 mg / mL, the concentration of the graphene solution is 0.3 mg / mL, the mixture is poured into an autoclave, subjected to a hydrothermal reaction at 180°C for 16 hours, and naturally cooled to room temperature to obtain the reduction oxidation Graphene / amorphous carbon substrate dispersion;

[0038] (2) Load Cu / Cu 2 The preparation of the reduced graphene oxide / amorphous carbon composite material of O photocatalyst: a certain amount of copper acetate is added in the reduced graphene oxide / amorphous carbon substrate dispersion liquid prepared in step 1 (per mL reduced graphene oxide / Add 0.002g of copper acetate to the amorphous carbon substrate dispers...

Embodiment 3

[0041] (1) Preparation of reduced graphene oxide / amorphous carbon substrate dispersion: dissolve cornstarch in an aqueous solution of graphene oxide, stir at 100°C for 2 hours, and cool to room temperature naturally to obtain a mixed solution of graphene oxide and sugar, Among them: the concentration of the sugar solution is 10 mg / mL, the concentration of the graphene solution is 0.3 mg / mL, the mixture is poured into an autoclave, and subjected to a hydrothermal reaction at 180°C for 24 hours, and naturally cooled to room temperature to obtain the reduction oxidation Graphene / amorphous carbon substrate dispersion;

[0042] (2) Load Cu / Cu 2 The preparation of the reduced graphene oxide / amorphous carbon composite material of O photocatalyst: a certain amount of copper acetate is added in the reduced graphene oxide / amorphous carbon substrate dispersion liquid prepared in step 1 (per mL reduced graphene oxide / Add 0.002g of copper acetate to the amorphous carbon substrate dispers...

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Abstract

The invention relates to a reducing-oxidized graphene / amorphous carbon composite material loading Cu / Cu2O photocatalyst as well as a preparation method and application of the composite material. The preparation method of the composite material comprises the following steps: by taking oxidized graphene, glucose or polysaccharide as carbon sources, preparing a reduction-oxidized graphene / amorphous carbon substrate dispersion agent by adopting hydro-thermal synthesis, and then directly adding soluble copper salt into the dispersion agent, so as to further prepare the reducing-oxidized graphene / amorphous carbon composite material loading the Cu / Cu2O photocatalyst by adopting hydro-thermal synthesis. For the obtained composite material, spherical Cu / Cu2O photocatalyst grows on a lamellar reducing-oxidized graphene / amorphous carbon substrate, the reducing-oxidized graphene / amorphous carbon substrate has good hydrophilia, can increase adsorption of Cu / Cu2O photocatalyst on organic pollutants in water body, and can further improve the photocatalytic performance of the Cu / Cu2O photocatalyst, and has great significance on water treatment for purifying organic pollutants in water.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and particularly relates to a kind of graphene oxide, glucose or polysaccharide, and soluble copper salt as raw materials, which are prepared by secondary hydrothermal synthesis and can be used to treat organic pollutants in water. Loaded Cu / Cu 2 Preparation of reduced graphene oxide / amorphous carbon composites for O photocatalysts. Background technique [0002] In the 21st century, the Bohai Rim region, together with the Yangtze River Delta and the Pearl River Delta, constitute the most economically dynamic region along the eastern coast of my country. There have been regional developments such as Tianjin Binhai New Area, Hebei Caofeidian Circular Economy Demonstration Area, Cangzhou Bohai New Area, and Liaoning Coastal Economic Belt. It is being promoted on a large scale and has become the core area to promote my country's economic development. The Bohai Sea is the only semi-enclose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/72C02F1/32
CPCY02W10/37
Inventor 李银辉李坤宇林宣伲陈建新韩健卢爱党苏敏
Owner HEBEI UNIV OF TECH
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