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Copper ferrite/carbon nanofiber membrane and preparation method and application thereof

A carbon nanofiber, copper ferrite technology, applied in fiber processing, filament/wire forming, heating/cooling fabrics, etc., can solve the problems of difficult recovery of electro-Fenton catalysts, avoid catalyst loss and recovery difficulties, implement Simple, low cost effect

Active Publication Date: 2017-07-14
HUBEI ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a copper ferrite / carbon nanofiber film and its preparation method and application, which aims to improve the problem that the existing electric Fenton catalyst is difficult to recycle

Method used

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  • Copper ferrite/carbon nanofiber membrane and preparation method and application thereof
  • Copper ferrite/carbon nanofiber membrane and preparation method and application thereof
  • Copper ferrite/carbon nanofiber membrane and preparation method and application thereof

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preparation example Construction

[0016] A preparation method of copper ferrite / carbon nanofiber film, which comprises:

[0017] Add copper salt and iron salt to the mixture of polymer and N, N-dimethylformamide, and mix to obtain an electrospinning solution. The electrospinning solution is subjected to electrospinning to obtain a metal salt / polymer fiber film, and the metal salt / polymer fiber film is heat-treated and annealed to obtain a copper ferrite / carbon nanofiber film. Wherein, the polymer is polyacrylonitrile or polyvinylpyrrolidone, and the molar ratio of copper salt to iron salt is 1.8-2.2:1.

[0018] The polymer polyacrylonitrile (PAN) or polyvinylpyrrolidone (PVP) is used as a carbon nanofiber precursor, N,N-dimethylformamide is used as an auxiliary agent, and the electrospinning solution is mixed with copper salt and iron salt. The porous copper ferrite / carbon nanofiber membrane is prepared by electrospinning technology combined with carbonization treatment or high-temperature calcination. Elect...

Embodiment 1

[0041] This embodiment provides a copper ferrite / carbon nanofiber film, which is mainly prepared by the following steps:

[0042] Accurately weigh 1.6g of polyacrylonitrile (PAN) and 14.4g of N,N-dimethylformamide (DMF) in a conical flask, put it on a stirrer, and make PAN in DMP under the condition of 50°C Dissolve slowly in medium and turn off the heat setting once dissolved.

[0043] Add 1.16g of iron acetylacetonate and 0.43g of copper acetylacetonate to the dissolved solution and continue stirring. The obtained copper ferrite / polyacrylonitrile fiber membrane was dried in a vacuum oven after electrospinning. The dried copper ferrite / polyacrylonitrile fiber membrane was heat-treated at 280° C. for 2 h in a muffle furnace, and finally annealed at 720° C. for 1 h under a nitrogen atmosphere to obtain a copper ferrite / carbon nanofiber membrane.

Embodiment 2

[0045] This embodiment provides a copper ferrite / carbon nanofiber film, which is mainly prepared by the following steps:

[0046] Accurately weigh 1.6g of PAN and 14.4g of DMF in a Erlenmeyer flask, place it on a stirrer, and slowly dissolve PAN in DMP at 50°C, and turn off the heating setting after dissolution.

[0047] Add 0.696g of iron acetylacetonate and 0.261g of copper acetylacetonate to the dissolved solution and continue stirring. The obtained copper ferrite / polyacrylonitrile fiber membrane was dried in a vacuum oven after electrospinning. The dried copper ferrite / polyacrylonitrile fiber membrane was heat-treated at 280° C. for 2 h in a muffle furnace, and finally annealed at 680° C. for 1 h under a nitrogen atmosphere to obtain a copper ferrite / carbon nanofiber membrane.

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Abstract

The invention relates to the field of materials, in particular to a copper ferrite / carbon nanofiber membrane and a preparation method and application thereof. The preparation method of the copper ferrite / carbon nanofiber membrane comprises the steps of adding copper salt and ferric salt into mixture of polymer and N,N-dimethyl formamide and mixing to obtain electrostatic spinning solution; performing electrostatic spinning on the electrostatic spinning solution to obtain a metal salt / polymer fiber membrane, performing thermal treatment on the metal salt / polymer fiber membrane and annealing to obtain the copper ferric / carbon nanofiber membrane. The polymer is polyacrylonitrile or polyvinyl pyrrolidone, and molar ratio of copper salt to ferric salt is (1.8 to 2.2):1. The copper ferrite / carbon nanofiber membrane can fix metal in electro-fenton catalyst in the fiber membrane, avoids secondary pollution and avoids the problems that catalyst is lost and difficult to recycle in a traditional out-phase electro-fenton process. Furthermore, the preparation method is convenient to implement, has lower cost and has certain economical and social benefits.

Description

technical field [0001] The invention relates to the field of materials, in particular to a copper ferrite / carbon nanofiber film and its preparation method and application. Background technique [0002] Electro-Fenton technology, as an efficient and environmentally friendly electrochemical advanced oxidation technology, has developed rapidly in recent years. However, the conventional electro-Fenton system using iron salt as a homogeneous catalyst has some defects, and the electro-Fenton catalyst in the traditional heterogeneous electro-Fenton system is lost and difficult to recover. Contents of the invention [0003] The purpose of the present invention is to provide a copper ferrite / carbon nanofiber membrane and its preparation method and application, which aims to improve the problem that the existing electric Fenton catalyst is difficult to recycle. [0004] The invention provides a technical solution: [0005] A preparation method of copper ferrite / carbon nanofiber fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/728D06C7/04D01D5/00
CPCD01D5/003D01D5/0061D01D5/0092D04H1/4382D04H1/728D06C7/04
Inventor 王丽徐建军张莹丁瑜
Owner HUBEI ENG UNIV
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