Magnetic biomass functional carbon fiber based on photo-Fenton catalysis and its preparation method and application

A carbon fiber and biomass technology, applied in chemical instruments and methods, chemical/physical processes, special compound water treatment, etc., can solve problems such as existing cost and increased water treatment cost, achieve simple recycling, solve solid loading and loss , the effect of a wide range of sources

Active Publication Date: 2022-02-15
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY +1
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

But at the same time, the preparation of micron-scale activated carbon fiber photo-Fenton catalyst and its application in water treatment and environmental purification still have cost problems, and in the actual application process, the recovery operation of micro-scale photo-Fenton catalyst will further increase the cost of water treatment

Method used

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  • Magnetic biomass functional carbon fiber based on photo-Fenton catalysis and its preparation method and application
  • Magnetic biomass functional carbon fiber based on photo-Fenton catalysis and its preparation method and application
  • Magnetic biomass functional carbon fiber based on photo-Fenton catalysis and its preparation method and application

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Embodiment 1

[0033] Such as figure 1 As shown, the preparation method of the magnetic biomass functional carbon fiber based on photo-Fenton catalysis of the present embodiment comprises the following steps:

[0034] 1. The waste paper is crushed mechanically and ultrasonically, and the crushed paper is put into a sodium hydroxide solution with a concentration of 5 mol / L to extract plant fibers by hydrothermal treatment at 160°C. The hydrothermal time is 24 hours, and the obtained fibrous solid matter is Filter, wash and dry to obtain waste paper fibers. In this step, in other embodiments, the sodium hydroxide solution may be other strong alkaline solutions with a concentration of 0.1-10 mol / L to achieve the same or similar technical effects.

[0035] 2. Put the pretreated waste paper fibers into a muffle furnace for high-temperature carbonization at a heating rate of 5°C / min, a carbonization temperature of 500°C, and a carbonization time of 2 hours to obtain carbonized fibers. In this st...

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Abstract

The invention discloses a method for preparing magnetic biomass functional carbon fibers based on photo-Fenton catalysis. Biomass materials are used as raw materials, plant fibers are extracted through hydrothermal treatment, and then carbonized, polydopamine modified, ferroferric oxide and titanium dioxide nanoparticles loaded to obtain functionalized carbon fibers. The magnetic biomass functional carbon fiber prepared by the present invention includes carbon fiber and Fe3O4 nanoparticles and titanium dioxide nanoparticles loaded on the carbon fiber in situ. The present invention can be applied to photo-Fenton treatment of wastewater, and has the advantages of low raw material cost, The preparation method is simple and has the advantages of magnetic recovery in the process of treating waste water, good treatment effect and the like.

Description

technical field [0001] The invention relates to the field of carbon fiber materials, in particular to a magnetic biomass functional carbon fiber based on photo-Fenton catalysis and a preparation method and application thereof. Background technique [0002] Activated carbon fiber is widely used in environmental purification, catalyst carrier, electrode material, etc. Using carbon fiber as nano-titanium dioxide photocatalyst carrier to treat organic wastewater can not only exert the efficient adsorption synergistic effect of carbon fiber, effectively improve the photocatalytic degradation performance of titanium dioxide on organic pollutants, but also solve the immobilization and loss of nano-scale titanium dioxide. It is widely used in the treatment of organic pollutant wastewater. However, the photocatalysis of carbon fiber photocatalysts is limited by the light source and catalytic efficiency, and it is difficult to treat organic pollutant wastewater efficiently on a large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/06B01J31/38B01J35/00B01J35/06B01J20/30C02F1/72C02F1/30C02F1/28C02F101/38C02F101/36
CPCC02F1/725C02F1/30C02F1/28B01J20/06B01J35/0033B01J35/004B01J35/06B01J31/38C02F2305/026C02F2305/10C02F2101/40C02F2101/38C02F2101/36
Inventor 胡进波卢斌达刘贡钢薛志成李婷苌姗姗李贤军刘元
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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