Preparation method of ferrocerium heterogeneous composite activated carbon fiber

A technology of activated carbon fiber and ferric cerium, which is applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of environmental pollution and high energy consumption of raw materials, and achieves low environmental pollution, simple method and cost. low effect

Inactive Publication Date: 2018-03-13
HUAFANG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Activated carbon fiber is a new type of carbon material developed to overcome the shortcomings of powdered activated carbon and granular activated carbon. At present, the raw materials for preparing activated carbon fiber mainly include viscose silk, polyacrylonitrile fiber, asphalt and phenolic fiber. heavy pollution

Method used

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  • Preparation method of ferrocerium heterogeneous composite activated carbon fiber
  • Preparation method of ferrocerium heterogeneous composite activated carbon fiber
  • Preparation method of ferrocerium heterogeneous composite activated carbon fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Prepare cerium nitrate and ferric chloride solutions separately, so that the molar ratio of cerium element and iron element is 1:1, mix the two solutions, take 50ml of the mixed solution of cerium nitrate and ferric chloride, add 2mmol / L hydration After the citric acid was placed on a magnetic stirrer and stirred, ammonia water was added dropwise to adjust the pH of the mixture to 2.18 to prepare a brownish yellow gel. Crush the waste cotton fabric into short lints of about 2 cm, take 0.8 g of short lints and add them to the gel for soaking for 48 hours, stirring slowly during the soaking process. After the impregnated short cotton wool is dried in a drying oven at 60°C, place it in an aluminum crucible for calcination, raise the temperature to 450°C at a calcination rate of 5°C / min, keep it warm for 30 minutes, and take it out after cooling to obtain ferrocerium isocyanide Composite activated carbon fiber samples. Take 0.03g cerium-iron composite activated carbon fibe...

Embodiment 2

[0028] Prepare cerium nitrate and ferric chloride solutions separately, so that the molar ratio of cerium element and iron element is 3:1, mix the two solutions, take 50ml of the mixed solution of cerium nitrate and ferric chloride, add 4mmol / L hydration After the citric acid was placed on a magnetic stirrer and stirred, ammonia water was added dropwise to adjust the pH of the mixture to 7.613 to prepare a brown yellow gel. Crush waste cotton fabrics into short lints of about 2 cm, take 1 g of short lints and add them to the gel for soaking for 72 hours, stirring slowly during the soaking process. The impregnated short cotton wool is dried in a drying oven at a low temperature of 50 degrees, and then placed in an aluminum crucible for calcination. The temperature is raised to 350 degrees at a calcination rate of 5 ℃ / min, and then kept for 30 minutes. After cooling, it is taken out to obtain ferrocerium Composite activated carbon fiber samples. The evaluation method of the pho...

Embodiment 3

[0034] Prepare cerium nitrate and ferric chloride solutions separately, so that the molar ratio of cerium element and iron element is 1:3, mix the two solutions, take 50ml of the mixed solution of cerium nitrate and ferric chloride, add 4mmol / L hydration After the citric acid was stirred on a magnetic stirrer, ammonia water was added dropwise to adjust the pH of the mixture to 0.789 to prepare a brownish yellow gel. Crush waste cotton fabrics into short lints of about 2 cm, take 1 g of short lints and add them to the gel for soaking for 54 hours, stirring slowly during the soaking process. The impregnated short cotton wool is dried in a drying oven at a low temperature of 50°C, then placed in an aluminum crucible for calcination, heated to 550°C at a calcination rate of 5°C / min, and then kept for 30 minutes, then taken out after cooling to obtain ferrocerium isocyanate Composite activated carbon fiber samples. Take 0.03g cerium-iron composite activated carbon fiber sample and...

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Abstract

The invention discloses a preparation method of ferrocerium heterogeneous composite activated carbon fiber. Aiming at the problems of nano photocatalysts and activated carbon fiber preparation methods, a composite carbon fiber photocatalyst is prepared by using waste cotton fabric as a carbon source and a fiber template and loading a ferrocerium heterogeneous material. Through the method, reuse ofthe ferrocerium heterogeneous material can be realized easily, the carbon fiber photocatalyst prepared by the method has high catalytic activity, and a way is provided for high-value application of the waste fabric. The preparation method is simple in process, the defect that metal oxide powder is difficult to recycle is overcome by using a carbon fiber material as a carrier of ferrocerium heterogeneous oxide, and the problems of reutilization and secondary pollution are solved; the activated carbon fiber serving as a photosensitive material is conducive to photocatalysis, and quick degradation and decoloration of dye can be realized.

Description

technical field [0001] The invention relates to the field of environmental protection technology for photocatalytic degradation of organic pollutants, in particular to a method for preparing ferrocerium heterogeneous composite activated carbon fibers, which uses waste cotton fabrics as fiber templates and carbon sources to load ferrocerium heterogeneous oxides to prepare composite carbon fibers catalyst of light. Background technique [0002] Photocatalytic technology can achieve effective oxidative decomposition of refractory organic pollutants, reduction of heavy metal ions, and elimination of bacteria and odors. The secondary pollution is small, and it can be used repeatedly and combined with other units for treatment. It has broad application prospects. Most of the early photocatalytic technologies used suspension systems to degrade organic matter. However, in actual use, nanopowders have problems such as easy agglomeration and difficult recovery after reaction in liquid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83B01J35/06B01J37/02B01J37/08
CPCB01J23/83B01J35/004B01J35/06B01J37/0211B01J37/084
Inventor 孙红玉邓慧盛春英贾荣霞夏艳茂田峰李兴华郭冬梅
Owner HUAFANG
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