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Preparing method for oriented-zinc-oxide-nanometer-bar-loaded fiber membrane

A technology of zinc oxide nanorods and fiber membranes, applied in fiber processing, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems of limited application, limited performance of disordered fibers, and difficulty in improving, etc., to increase the application range, catalyze Improved degradation efficiency and high controllability

Inactive Publication Date: 2017-10-10
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The fibers prepared by traditional electrospinning are basically randomly arranged disordered nanofibers, and the properties of disordered fibers are limited and difficult to improve, which limits the application of electrospun fibers in optoelectronic devices, anisotropic tissues and organs, high Applications in performance fiber reinforced materials, high-sensitivity sensors, etc.

Method used

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  • Preparing method for oriented-zinc-oxide-nanometer-bar-loaded fiber membrane
  • Preparing method for oriented-zinc-oxide-nanometer-bar-loaded fiber membrane
  • Preparing method for oriented-zinc-oxide-nanometer-bar-loaded fiber membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Preparation of ZnO seed layer

[0052] S1: Preparation of spinning solution

[0053] Weigh 5g of polyvinylidene fluoride (PVDF) particles and place them in a beaker, and add a mixed solvent of 31.5g N,N-dimethylformamide (DMF) and 23.5g of acetone to the beaker (the mass ratio of DMF to acetone is 7:3). Then place the beaker in a heat-collecting magnetic heating stirrer for heating and stirring in a water bath, and the temperature of the water bath is 55°C. After the PVDF particles are completely dissolved to form a uniform transparent solution, a PVDF solution with a concentration of 10% is obtained. At room temperature, add 1.5 g of anhydrous zinc acetate (Zn(Ac) 2 ) powder and placed on a magnetic stirrer to stir until a uniformly dispersed solution is formed to obtain PVDF / Zn(Ac) 2 mixed solution.

[0054] 0.5g of γ-Fe 2 o 3 The nanoparticles were dispersed into a mixed solvent of DMF (3.15g) and acetone (1.35g) (the mass ratio of DMF to acetone was 7:3),...

Embodiment 2

[0066] This implementation is used as a control experiment, and the specific method is as follows:

[0067] (1) Preparation of ZnO seed layer

[0068] S1: Preparation of spinning solution

[0069] Weigh 5g of polyvinylidene fluoride (PVDF) particles and place them in a beaker, and add a mixed solvent of 31.5g N,N-dimethylformamide (DMF) and 23.5g of acetone to the beaker (the mass ratio of DMF to acetone is 7:3). Then place the beaker in a heat-collecting magnetic heating stirrer for heating and stirring in a water bath, and the temperature of the water bath is 55°C. After the PVDF particles are completely dissolved to form a uniform transparent solution, a PVDF solution with a concentration of 10% is obtained. At room temperature, add 1.5 g of anhydrous zinc acetate (Zn(Ac) 2 ) powder and placed on a magnetic stirrer for stirring until a uniformly dispersed solution is formed to obtain a spinning solution.

[0070] S2: PVDF / Zn(Ac) 2 Preparation of nanofibers

[0071] E...

Embodiment 3

[0079] This implementation is used as a control experiment, and the specific method is as follows:

[0080] (1) Preparation of ZnO seed layer

[0081] S1: Preparation of spinning solution

[0082] Weigh 5g of polyvinylidene fluoride (PVDF) particles and place them in a beaker, and add a mixed solvent of 31.5g N,N-dimethylformamide (DMF) and 23.5g of acetone to the beaker (the mass ratio of DMF to acetone is 7:3). Then place the beaker in a heat-collecting magnetic heating stirrer for heating and stirring in a water bath, and the temperature of the water bath is 55°C. After the PVDF particles are completely dissolved to form a uniform transparent solution, a PVDF solution with a concentration of 10% is obtained.

[0083] S2: PVDF / Zn(Ac) 2 Preparation of nanofibers

[0084] Electrospinning was carried out on the spinning solution, wherein the spinning voltage was 15kV, and the spinning distance was 12cm. After electrospinning is completed, a PVDF nanofiber membrane is obta...

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Abstract

The invention relates to a preparing method for an oriented-zinc-oxide-nanometer-bar-loaded fiber membrane. The preparing method includes the following steps that a high-molecular polymer and zinc acetate are dissolved in an organic solvent, magnetic nanometer particles are added into the mixture, the mixture is fixed to be even, and then an electrostatic spinning solution is obtained; an ordered high-molecular polymer / zinc acetate / magnetic nanometer particle fiber is prepared with a magnetic-field-assisting electrostatic spinning technology; zinc salt, hexamethylene tetramine and ammonium hydroxide are mixed to be even in water, and a growth solution is obtained; the high-molecular polymer / zinc acetate / magnetic nanometer particle fiber is subjected to low-temperature heat treatment, the zinc acetate is converted into zinc oxide, then the zinc oxide is put into the growth solution, and the oriented-zinc-oxide-nanometer-bar-loaded fiber membrane is obtained after a reaction with the hydrothermal method. According to the preparing method, the reaction condition is wild, operation is easy, and the controllability is high; the product prepared with the method is not limited by application in the inorganic substance aspect, the photoelectric performance is excellent, and the catalytic degradation efficiency is improved.

Description

technical field [0001] The invention relates to the field of electrospinning, in particular to a method for preparing a fiber film loaded with oriented zinc oxide nanorods. Background technique [0002] At present, ZnO nanomaterials are grown on organic fibers mainly through the following methods: [0003] (1) Directly place electrospun pure organic fibers, organic fibers containing zinc salts or organic fibers containing ZnO nanoparticles in the growth solution of zinc oxide to grow ZnO nanostructures on it by hydrothermal method. [0004] (2) The electrospun organic fiber is directly coated with a zinc oxide seed layer, and ZnO nanostructures are grown on it by a hydrothermal method. Compared with the shortcomings of ZnO solution shedding and uneven growth when growing directly on electrospun organic fibers, fibers coated with ZnO seed solution can obtain uniform and orderly growth fibers, and ZnO nanorods can basically be perpendicular to Fiber surface growth, but this ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4291D04H1/43D04H1/4318D04H1/4326D04H1/435D04H1/4382D04H1/728D01D5/00D01F1/10D01F6/48
CPCD04H1/728D01D5/003D01D5/0061D01D5/0092D01F1/10D01F6/48D04H1/4291D04H1/43D04H1/4318D04H1/4326D04H1/435D04H1/4382
Inventor 刘艳清刘鹏陈柔熙何吉欢
Owner SUZHOU UNIV
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