Carbon nanofiber embedded with photocatalyst nanoparticles and preparation method thereof

A carbon nanofiber, nanoparticle technology, applied in the chemical characteristics of fibers, rayon manufacturing, textiles and papermaking, etc., to avoid shedding problems and achieve long-term high efficiency

Active Publication Date: 2020-03-03
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is still no method for preparing such carbon nanofibers in the current prior art.

Method used

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  • Carbon nanofiber embedded with photocatalyst nanoparticles and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the present embodiment, the method for preparing carbon nanofibers inlaid with photocatalyst nanoparticles comprises the following steps:

[0022] 1) Add 0.2 g of titanium dioxide nano-ion (P25) and 1.5 g of PAN into a 100 ml beaker, pour 8.5 g of DMF, stir magnetically for 2 hours, and let stand for 24 hours to make PAN-TiO 2 Sol;

[0023] 2) Take 5 ml of the sol prepared in step 1) into a syringe, install a metal needle, connect to a high-voltage power supply, and set the grounded aluminum plate as the negative electrode;

[0024] 3) Turn on the power, adjust to 15KV, lightly press the syringe until the sol flows out, and spin;

[0025] 4) Cut the fiber film received on the aluminum plate into 1cm×1cm fragments, place in 50 ml of aqueous solution, and stir;

[0026] 5) Place the uniformly stirred solution under ultraviolet light with a power of 40 watts and irradiate at a distance of 10 cm for 48 hours;

[0027] 6) Take out the irradiated fibers and dry them in ...

Embodiment 2

[0031] In the present embodiment, the method for preparing carbon nanofibers inlaid with photocatalyst nanoparticles comprises the following steps:

[0032] 1) Add 0.1 g of titanium dioxide nano-ion (P25) and 1.5 g of PAN into a 100 ml beaker, pour 8.5 g of DMF, stir magnetically for 2 hours, and let stand for 24 hours to make PAN-TiO 2 Sol;

[0033] 2) Take 5 ml of the sol prepared in step 1) into a syringe, install a metal needle, connect to a high-voltage power supply, and set the grounded aluminum plate as the negative electrode;

[0034] 3) Turn on the power, adjust to 15KV, lightly press the syringe until the sol flows out, and spin;

[0035] 4) Cut the fiber film received on the aluminum plate into 1cm×1cm fragments, place in 50 ml of aqueous solution, and stir;

[0036] 5) Place the uniformly stirred solution under ultraviolet light with a power of 40 watts and irradiate at a distance of 10 cm for 48 hours;

[0037] 6) Take out the irradiated fibers and dry them in ...

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Abstract

The invention discloses photocatalyst nanoparticle-inlaid carbon nanofiber and a preparation method thereof. The preparation method specifically comprises the following steps: spinning high molecularfiber in which photocatalyst particles are mixed through an electrostatic spinning method; then carrying out photodegradation on surrounding high molecular components by utilizing ultraviolet excitednanoparticles, and irradiating for a certain time under certain ultraviolet strength, thus forming nanofiber with semi-inlaid metal oxide nanoparticles; carbonizing, thus forming carbon nanofiber withsemi-inlaid functional particles. The preparation method disclosed by the invention is convenient and easy, and semi-inlaid carbon nanofiber and nano-scale holes in the surface of the semi-inlaid carbon nanofiber are obtained through the preparation method.

Description

technical field [0001] The invention relates to the field of carbon fiber preparation, in particular to nano-carbon fiber inlaid with photocatalyst nano particles and a preparation method thereof. Background technique [0002] Nanofibers refer to fibers with a diameter of less than 1000 nanometers. Common preparation methods include electrospinning, template method, hydrothermal method, sea-island method and other technical processes. Among them, electrospinning is the only method that can mass-produce nanofibers on a large scale. [0003] The research methods of combining inorganic catalysts with nanofibers to realize functionalized nanofibers include: direct mixing method, surface coating method and center filling method of core-shell structure, etc. [0004] The ideal mixed structure of photocatalyst and nanofiber is in semi-embedded state, so that the exposure state of photocatalyst to light can be guaranteed, and the problem of shedding can be avoided, so as to achieve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/22D01F1/10
CPCD01F1/10D01F9/22
Inventor 李昌治常国庆
Owner ZHEJIANG UNIV
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