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A carbon nanofiber film loaded with copper ferrite and its preparation method and application

A technology of carbon nanofibers and copper ferrite, applied in fiber processing, filament/wire forming, textiles and papermaking, etc., can solve the problems of difficult recovery of electro-Fenton catalysts, avoid catalyst loss and recovery difficulties, and be easy to implement , low cost effect

Active Publication Date: 2019-03-05
HUBEI ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide a carbon nanofiber membrane loaded with copper ferrite 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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  • A carbon nanofiber film loaded with copper ferrite and its preparation method and application
  • A carbon nanofiber film loaded with copper ferrite and its preparation method and application
  • A carbon nanofiber film loaded with copper ferrite and its preparation method and application

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preparation example Construction

[0016] A preparation method of a carbon nanofiber film loaded with copper ferrite, comprising:

[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 polymer fiber membrane loaded with metal salt, and the polymer fiber membrane loaded with metal salt is heat treated and annealed to obtain a carbon nanofiber membrane loaded with copper ferrite. 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. Electrospinning technology combined with carbonization treatment or high-temperature calcination method is used to...

Embodiment 1

[0041] This embodiment provides a carbon nanofiber film loaded with copper ferrite, 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 in a muffle furnace at 280° C. for 2 h, and finally annealed at 720° C. for 1 h under a nitrogen atmosphere to obtain a carbon nanofiber membrane loaded with copper ferrite.

Embodiment 2

[0045] This embodiment provides a carbon nanofiber film loaded with copper ferrite, 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 carbon nanofiber membrane loaded with copper ferrite.

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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 carbon nanofiber film loaded with copper ferrite 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 object of the present invention is to provide a carbon nanofiber membrane loaded with copper ferrite and its preparation method and application, which aims to improve the problem that the existing electro-Fenton catalyst is difficult to recycle. [0004] The invention provides a technical solution: [0005] A preparation method of a carbon nan...

Claims

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Application Information

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Patent Type & Authority Patents(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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