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Functional magnetic carbon material and preparation method and application thereof

A magnetic carbon and functionalization technology, applied in chemical instruments and methods, inorganic chemistry, other chemical processes, etc., to achieve the effect of high modification content, simple synthesis process and low consumption

Inactive Publication Date: 2016-07-06
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods have their own shortcomings, and the morphology and properties of the products are not the same, such as functionalized magnetic carbonaceous materials with controllable size, high content of surface functional group modification, strong magnetic properties, simple synthesis process and low consumption. The preparation method needs to be further explored

Method used

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  • Functional magnetic carbon material and preparation method and application thereof
  • Functional magnetic carbon material and preparation method and application thereof
  • Functional magnetic carbon material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: Amino functionalized magnetic activated carbon (mAC:mFe 3 o 4=1:0.25) Preparation of composite material

[0029] (1) Magnetic activated carbon (AC / Fe 3 o 4 ) preparation

[0030] 0.5883gFeCl 3 ·6H 2 O and 0.3779g FeSO 4 ·7H 2 O was dissolved in 25 mL deionized water and ultrasonically dissolved, where Fe 3+ with Fe 2+ The molar ratio of the concentration is 1.6:1, then add 25mL polyethylene glycol solution and 0.5g activated carbon ultrasonic dispersion, then at a flow rate of 200mL / minN 2 Under the protection of the environment, add dropwise the mixed solution of 10mL ammonia water and 25mL polyethylene glycol, stir and react in a water bath at a stirring speed of 400r / min and a temperature of 60°C for 1h, stop stirring and keep the temperature for 1h, and then wash with deionized water To neutral, the mass ratio mAC:mFe is obtained after magnetic separation 3 o 4 =1:0.25 magnetic activated carbon.

[0031] (2) Amino functionalized magnetic a...

Embodiment 2

[0033] Embodiment 2: Amino functionalized magnetic activated carbon (mAC:mFe 3 o 4 =1:0.5) Preparation of composite material

[0034] (1) The preparation of the magnetic activated carbon carrier is as described in step (1) in Example 1. The difference is that the added FeCl 3 ·6H 2 O and FeSO 4 ·7H 2 The masses of O are 1.1767g and 0.7558g, respectively.

[0035] (2) Amino functionalized magnetic activated carbon (mAC:mFe 3 o 4 =1:0.5) is prepared as described in step (2) in Example 1.

Embodiment 3

[0036] Embodiment 3: Amino functionalized magnetic activated carbon (mAC:mFe 3 o 4 =1:0.15) Preparation of composite material

[0037] (1) The preparation of the magnetic activated carbon carrier is as described in step (1) in Example 1. The difference is that the added FeCl 3 ·6H 2 O and FeSO 4 ·7H 2 The masses of O are 0.353g and 0.2267g, respectively.

[0038] (2) Amino functionalized magnetic activated carbon (mAC:mFe 3 o 4 =1:0.15) is prepared as described in step (2) in Example 1.

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Abstract

The invention belongs to the technical field of functional materials and magnetic materials, and in particular relates to a functionalized magnetic carbonaceous material and its preparation method and application. One-step synthesis of the process; (2) The surface of activated carbon is doped with magnetic nanoparticles, which improves the easy aggregation of magnetic particles and enables the products to be magnetically separated without causing secondary pollution of water bodies; (3) Controlling the reaction conditions during the preparation process can achieve magnetic Controllable nanoparticle content, silica layer and amino layer; (4) Enhance the dispersion performance of the material by adjusting the mass ratio of activated carbon and magnetic particles in the magnetic activated carbon carrier, and selectively adsorb and remove Pb(II) in wastewater , to achieve the purpose of harmless treatment, and provide the possibility to realize its application and promotion in engineering.

Description

technical field [0001] The invention belongs to the technical field of functional materials and magnetic materials, in particular to a functionalized magnetic carbonaceous material and its preparation method and application, which are mainly applied to the adsorption and removal of heavy metals in wastewater. Background technique [0002] Due to their special magnetic effects, such as superparamagnetism, magnetic nanomaterials can be precisely positioned, transferred and separated under the action of an external magnetic field, and have broad application prospects in the fields of biomedicine, chemical industry, environment, and pharmaceuticals. . However, due to its high specific surface area and easy agglomeration, proper surface modification to reduce its surface energy can obtain dispersible magnetic nanoparticles with good chemical stability and good biocompatibility. Carbonaceous materials (activated carbon, carbon nanotubes, graphene, etc.) are widely used in the rem...

Claims

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Application Information

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IPC IPC(8): B01J20/30B01J20/20B01J20/28C02F1/28C02F101/20
CPCB01J20/28009B01J20/205B01J2220/4806B01J2220/4812C02F1/283C02F2101/20
Inventor 傅瑞琪徐新华楼子墨刘榆周晓馨孙悦
Owner ZHEJIANG UNIV
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