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Preparation method and application of carbon-iron composite material with porous structure

A porous structure, composite material technology, applied in chemical instruments and methods, alkali metal compounds, water treatment of special compounds, etc., can solve the problem of difficult separation of carbon materials, achieve simple and convenient experimental steps, good adsorption performance, and improve adsorption efficiency. Effect

Inactive Publication Date: 2020-07-03
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the solid powder is highly dispersed in the liquid phase, it is usually difficult for the carbon materials dispersed in water to be separated from the liquid phase quickly.

Method used

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  • Preparation method and application of carbon-iron composite material with porous structure
  • Preparation method and application of carbon-iron composite material with porous structure
  • Preparation method and application of carbon-iron composite material with porous structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Preparation of PCN-600:

[0042] Put 500mg of MIL-101(Fe) orange powder into a porcelain boat, calcinate in a tube furnace under a nitrogen atmosphere, heat at 3°C ​​for 1h to 600°C per minute, N 2 Cool to room temperature under atmosphere. The black powder was washed with water, then magnetically separated, and dried at 70°C to obtain the product.

Embodiment 2

[0044] Preparation of PCN-700:

[0045] Put 500mg of MIL-101(Fe) orange powder into a porcelain boat, calcinate in a tube furnace under a nitrogen atmosphere, heat at 3°C ​​for 1h to 700°C per minute, N 2 Cool to room temperature under atmosphere. The black powder was washed with water, then magnetically separated, and dried at 70°C to obtain the product.

Embodiment 3

[0047] Preparation of PCN-800:

[0048] Put 500mg of MIL-101(Fe) orange powder into a porcelain boat, calcinate in a tube furnace under a nitrogen atmosphere, heat at 3°C ​​for 1h to 800°C per minute, N 2 Cool to room temperature under atmosphere. The black powder was washed with water, then magnetically separated, and dried at 70°C to obtain the product.

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Abstract

The invention provides a preparation method and an application of a carbon-iron composite material with a porous structure. The material can be used as an adsorbent of various antibiotics and a Fentonreaction catalyst under a wide pH condition. According to the material, a metal organic framework is used as a raw material, a one-step pyrolysis method is adopted, annealing conditions are controlled for synthesis, and iron nanoparticles in the obtained material are uniformly loaded on the surface of an ultrathin carbon nanosheet with a porous structure. The porous structure can effectively enhance the transmission and capture capacity of substances, and meanwhile, THE iron nanoparticles loaded on the porous carbon nanosheet can be complexed with antibiotic molecules through sites on the surface of transition metal, so that the adsorption efficiency is further improved, and the material has better adsorption performance than common activated carbon. In addition, the iron nanoparticles are also active sites of the Fenton reaction and can adsorb pollutants in a circulating mode. Meanwhile, the material has magnetism and can be quickly and conveniently recycled from a water phase. Therefore, the material is a green, efficient and recyclable adsorbent.

Description

technical field [0001] The invention relates to a heterogeneous adsorbent which can be used for antibiotic waste water under wide pH conditions, and belongs to the technical field of adsorption. Background technique [0002] Antibiotics are widely used in the treatment of human and animal diseases as well as agricultural antibacterial agents. The worldwide usage exceeds 100,000 tons per year. The sources of their pollution are very extensive, such as medical wastewater, livestock and poultry manure agricultural wastewater, wastewater from sewage treatment plants, etc. Since antibiotics are easy to accumulate in the environment and have been detected in significant concentrations in fresh water, they are easily migrated through the food chain and pose a threat to the environment and human health. [0003] So far, treatment technologies aimed at removing antibiotics from wastewater include adsorption, biological, membrane, and advanced oxidation processes (AOPs). Among these ...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30B01J23/745B01J35/02B01J35/10C02F1/28C02F1/72C02F101/30
CPCB01J20/205B01J20/0229B01J20/28009B01J20/28014B01J23/745C02F1/283C02F1/281C02F1/725C02F2101/30C02F2305/10B01J35/33B01J35/40B01J35/60B01J35/39
Inventor 雷菊英张金龙刘勇弟顾文怡王灵芝周亮芮俊男肖万紫于师潼
Owner EAST CHINA UNIV OF SCI & TECH
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