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Method for preparing iron phosphide/carbon composite material from yeast biomass

A technology of carbon composite materials and biomass, applied in chemical instruments and methods, oxidized water/sewage treatment, physical/chemical process catalysts, etc.

Inactive Publication Date: 2021-06-08
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional synthesis of phosphides requires toxic reagents such as red phosphorus and trioctylphosphorus as phosphorus sources or complex processes such as hydrogen reduction are difficult to popularize and apply. Considering that biomass not only contains rich carbon elements but also phospholipid bimolecules in cell membrane Layer, ribonucleic acid also contains phosphorus

Method used

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  • Method for preparing iron phosphide/carbon composite material from yeast biomass
  • Method for preparing iron phosphide/carbon composite material from yeast biomass
  • Method for preparing iron phosphide/carbon composite material from yeast biomass

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Disperse 50 g of baker's yeast cells evenly in 500 mL of ethanol, add 2.41 g of ferric chloride hexahydrate under magnetic stirring, then add a certain amount of ammonium bicarbonate and stir continuously for 6-12 h, centrifuge and wash the obtained complex Dry in a freeze dryer. The dried composite was transferred to a corundum crucible and placed in a tube furnace for calcination under a protective atmosphere at a temperature of 900 o C, the calcination time is 2-6 h, and the heating rate is 5 o C / min, take it out after cooling to room temperature. The resulting material was washed with deionized water in a vacuum oven for 60 o C drying to obtain iron phosphide / carbon material, named as 1%-Fe .

Embodiment 2

[0027] Disperse 50 g of baker's yeast cells evenly in 500 mL of ethanol, add 7.24 g of ferric chloride hexahydrate under magnetic stirring, then add a certain amount of ammonium bicarbonate and stir continuously for 6-12 h, centrifuge and wash the obtained complex Dry in a freeze dryer. The dried composite was transferred to a corundum crucible and placed in a tube furnace for calcination under a protective atmosphere at a temperature of 900 o C, the calcination time is 2-6 h, and the heating rate is 5 o C / min, take it out after cooling to room temperature. The resulting material was washed with deionized water in a vacuum oven for 60 o C drying to obtain iron phosphide / carbon material, named as 3%-Fe .

Embodiment 3

[0029] Disperse 50 g of baker's yeast cells evenly in 500 mL of ethanol, add 12.07 g of ferric chloride hexahydrate under magnetic stirring, and then add a certain amount of ammonium bicarbonate and stir continuously for 6-12 h, centrifuge and wash the obtained complex Dry in a freeze dryer. The dried composite was transferred to a corundum crucible and placed in a tube furnace for calcination under a protective atmosphere at a temperature of 900 o C, the calcination time is 2-6 h, and the heating rate is 5 o C / min, take it out after cooling to room temperature. The resulting material was washed with deionized water in a vacuum oven for 60 o C drying to obtain iron phosphide / carbon material, named as 5%-Fe .

[0030] For investigating the catalytic degradation performance of iron phosphide / carbon material proposed by the present invention to sulfamethoxazole, the sulfamethoxazole solution of preparation 20mg / L is under the condition of 180 rpm at 30 ℃, shaker speed, with ...

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Abstract

The invention discloses a method for preparing an iron phosphide / carbon composite material by using yeast. The method comprises the following steps of: with baker's yeast, ferric trichloride hexahydrate and ammonium bicarbonate as raw materials, loading a certain amount of iron oxyhydroxide on the surface of the baker's yeast by using a coprecipitation method, centrifugally washing the generated yeast / iron oxyhydroxide compound, conducting freeze-drying, and carrying out calcining in a protective atmosphere at 700-1000 DEG C to obtain the iron phosphide / carbon material with a pore structure. The material can catalyze oxygen in an aqueous solution to generate active oxygen components to degrade sulfamethoxazole. According to the invention, phosphorus resources in biomass are reutilized, a preparation method fortransition metal phosphide is provided, and efficient removal of sulfamethoxazole in a water body is realized.

Description

technical field [0001] The invention belongs to the field of carbon materials, and in particular relates to a method for preparing iron phosphide / carbon composite materials from yeast biomass. Background technique [0002] Advanced oxidation technology (AOPs) has been studied and applied to the degradation treatment of organic pollutants because it produces some highly active oxidative free radicals. Generally speaking, additional oxidizing agents, such as ozone, hydrogen peroxide, and persulfate, are required to obtain active oxygen radical components. The high cost of its raw materials or the difficulty in storage and transportation limit its wide application. In recent years, using the electron transfer ability of low-valent iron ions (ferrous iron) to activate oxygen in aqueous solution to generate active oxygen components to treat organic pollutants in groundwater has attracted extensive attention from researchers, but iron ions are difficult to recover and active. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/185C02F1/72C02F101/38C02F101/34
CPCB01J27/1853C02F1/725C02F1/727C02F2101/34C02F2101/38C02F2101/40
Inventor 张永奎谢艺王雅博
Owner SICHUAN UNIV
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