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CuO ball, preparation method and use thereof, as well as visible light catalyst

A technology of purpose, spherical structure, applied in the field of CuO nanostructure, can solve the problems of destroying the ecological environment, toxicity, carcinogenicity, etc.

Inactive Publication Date: 2013-04-24
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These dyes in wastewater have caused great environmental pollution problems, disrupting the balance of the ecological environment, and even some dyes are toxic or carcinogenic to certain organisms

Method used

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  • CuO ball, preparation method and use thereof, as well as visible light catalyst
  • CuO ball, preparation method and use thereof, as well as visible light catalyst
  • CuO ball, preparation method and use thereof, as well as visible light catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Add 2ml of ammonia water and 10ml of 2g / L sodium alginate aqueous solution to 0.1M 10ml copper acetate aqueous solution, transfer the reaction mixture to a reaction kettle, and conduct a hydrothermal reaction at 160°C for 2 hours. Cool, separate, and after washing, air dry naturally. The obtained product is a solid spherical CuO nanomaterial.

Embodiment 2

[0044] Add 2ml of ammonia water and 10ml of 2g / L sodium alginate aqueous solution to 0.1M 10ml copper acetate aqueous solution, transfer the reaction mixture to a reaction kettle, and conduct a hydrothermal reaction at 120°C for 2 hours. Cool, separate, and after washing, air dry naturally. The obtained product is a solid spherical CuO nanomaterial.

Embodiment 3

[0046] Add 1ml of ammonia water and 8ml of 2g / L sodium alginate aqueous solution to 0.1M 10ml copper acetate aqueous solution, transfer the reaction mixture to a reaction kettle, and conduct a hydrothermal reaction at 160°C for 2 hours. Cool, separate, and after washing, air dry naturally. The obtained product is a solid spherical CuO nanomaterial.

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Abstract

The invention discloses a CuO ball, a preparation method and a use thereof, as well as a visible light catalyst and relates to a CuO nanostructure. The preparation method is as follows: mixing a copper salt water solution, ammonia water and a sodium alginate water solution, wherein the volume ratio of the copper salt water solution to the ammonia water is 10: 0.5-10: 5, and the volume ratio of the copper salt water solution to the sodium alginate water solution is 2: 1-1: 2; and reacting for 1-24 hours under hydrothermal conditions at the temperature of 100-180 DEG C. The CuO can have two structures, namely the solid structure and the hollow structure according to different reaction time. The CuO solid ball and the CuO hollow ball, disclosed by the invention, can be used for visible light catalytic degradation of organic dyes, in particular to the visible light catalytic degradation of methyl blue.

Description

technical field [0001] The invention relates to a CuO nanostructure, in particular to a CuO ball, its preparation method, application and visible light catalyst. Background technique [0002] Dyes are widely used in textile, leather, printing, food and plastic industries. At present, about 100,000 kinds of dyes are used in the above industries, most of which are synthetic dyes, which are difficult to be degraded or decolorized. These dyes in wastewater have caused great environmental pollution problems, disrupting the balance of the ecological environment, and even some dyes are toxic or carcinogenic to certain organisms. At present, there are many methods such as adsorption, chemical flocculation, photodegradation, electrocatalysis, etc. can be used to treat wastewater. Among these methods, photodegradation method has been widely used because it can effectively remove dyes in wastewater without causing secondary pollution. [0003] Since Fujishima and Honda in Japan disco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02B82Y30/00B01J23/72
Inventor 高峰陆轻铱刘荣梅殷竟洲杜薇樊永章
Owner NANJING UNIV
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