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Preparation method of Cu2O/NiFe2O4 magnetic composite

A composite, magnetic technology, applied in the fields of iron compounds, inorganic material magnetism, chemical instruments and methods, etc., can solve problems such as difficulty in recycling

Inactive Publication Date: 2010-07-28
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the past, in the research on the treatment of wastewater with cuprous oxide powder photocatalyst, its recovery has always been one of the difficulties that limit the application.

Method used

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  • Preparation method of Cu2O/NiFe2O4 magnetic composite
  • Preparation method of Cu2O/NiFe2O4 magnetic composite

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Experimental program
Comparison scheme
Effect test

Embodiment

[0017] Embodiment: the preparation process and steps in this embodiment are as follows:

[0018] (1), 2.43g FeCl 3 ·6H 2 O and 1.31gNi(NO 3 ) 2 ·6H 2 O was dissolved in 60ml of distilled water, 1.0g of polyvinylpyrrolidone was added, and the pH was adjusted to 10 (measured by pH test paper) with NaOH solution, stirred evenly with a magnetic stirrer, and loaded into a high-pressure reaction with a polytetrafluoroethylene lining in a volume of 100ml. Kettle, placed in a muffle furnace at 200 ° C constant temperature 8h. After the reaction is completed and the sample is cooled, the remaining waste liquid of the reaction is removed, and the reaction product obtained is transferred to a beaker. The product was repeatedly washed with deionized water to pH 7, and then washed with absolute ethanol. After suction filtration, the sample was dried at 60°C for 3 hours and taken out, and the product was brown nickel ferrite.

[0019] (2), 2.5g CuSO 4 ·5H 2 O and 1g of glucose are ...

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Abstract

The invention relates to a preparation method of a Cu2O / NiFe2O4 magnetic composite, belonging to the technical field of preparation of magnetic composite material. The method of the invention is characterized by comprising the following steps: dissolving iron salt and nickel salt in distilled water according to a certain ratio, then adding surfactant polyvinylpyrrolidone, adjusting the pH value of the solution to 9-11 with sodium hydroxide, then pouring the reaction solution in a high-pressure reaction tank and placing in a muffle furnace to keep temperature for 8-10 hours at 200-250 DEG C for fully reacting; washing the product, performing suction filtration and vacuum drying to obtain magnetic nickel ferrite power for standby; then dissolving copper salt and glucose in distilled water with a certain volume, adding the prepared nickel ferrite power in the obtained solution; stirring evenly, adding defined amounts of NaOH solution and hydrazine hydrate solution, continuously stirring to fully react; and then washing, performing suction filtration and vacuum drying, and finally obtaining the Cu2O / NiFe2O4 magnetic composite power.

Description

technical field [0001] The present invention relates to a Cu 2 O / NiFe 2 o 4 The invention discloses a preparation method of a magnetic composite, which belongs to the technical field of magnetic composite material preparation technology of magnetic cuprous oxide-nickel ferrite composite type. Background technique [0002] Cuprous oxide is a P-type semiconductor with a forbidden bandwidth of only about 2.2eV. It can be excited by absorbing photons with a wavelength of 563nm (visible light band 390-780nm), which can convert solar energy into electrical energy or chemical energy. The photocatalytic reaction can be initiated under the irradiation of light, which is a kind of photocatalyst with great potential. At present, the preparation of cuprous oxide photocatalytic materials and the treatment of refractory organic waste water have gradually become a research hotspot. [0003] In the past, in the research of cuprous oxide powder photocatalyst for wastewater treatment, its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/01C01G49/00C01G3/02
Inventor 严丽君左君杨秀琴程跃阮慧娟黎彬
Owner SHANGHAI UNIV
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