Method for preparing aqueous dispersion nano-cuprous oxide/graphene composite powder

A nano-cuprous oxide and graphene composite technology, applied in the oxidation water/sewage treatment, medical preparations containing active ingredients, light water/sewage treatment, etc., to achieve low production equipment requirements, excellent photocatalytic degradation of dyes, Good dispersion effect
CN102716743AInactive Publication Date: 2012-10-10DONGHUA UNIV
4 Cites 18 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGHUA UNIV
Publication Date
2012-10-10
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method for preparing aqueous dispersion nano-cuprous oxide / graphene composite powder. The method includes (1) ultrasonically dispersing graphite oxide, surfactant and copper salt in water at room temperature to form reaction liquid; and (2) dripping hydrated hydrazine liquor of a reducing agent into the reaction liquid at the room temperature, heating so that the temperature of the mixed liquid ranges from 90 DEG C to 110 DEG C, carrying out reaction for 8 to 12 hours, cooling the mixed liquid to the room temperature, leaching and collecting a product, and washing and drying the product to obtain the Cu2O / graphene composite powder. The method is simple, requirements on equipment are low, and industrial production is realized easily. The prepared composite powder is good in dispersibility in water, is excellent in photocatalytic dye degradation ability in visible light with the wavelength of 500nm, and is good in photocatalytic tumor cell killing ability, and has a wide application prospect in the field of environmental protection and tumor therapy.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of preparation of nano-visible light catalytic materials, in particular to a preparation method of a water-dispersed nano-cuprous oxide / graphene composite powder. Background technique

[0002] Cuprous oxide is a p-type semiconductor material responsive to visible light, with a forbidden band width of about 2.0 eV and a high absorption coefficient in the visible light region, making it an ideal visible light catalytic material. Under visible light irradiation, cuprous oxide can degrade organic pollutants to achieve the purpose of environmental purification; and can interact with the cell wall of bacteria, and further damage the membrane structure, resulting in changes in permeability, so as to achieve bacteriostatic, anti-cancer effects. It can be seen that cuprous oxide has broad application prospects in environmental protection, biomedicine and so on. However, compared with other commonly used n-type semiconductor c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More