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Preparation method of magnetic graphitized carbon nano pipe adsorbing agent in chitosan surface modification

A graphitized carbon and surface modification technology, applied in chemical instruments and methods, inorganic chemistry, alkali metal compounds, etc., can solve the problems of difficult dispersion and difficult recovery, and achieve simple preparation process, easy control of conditions, and high adsorption capacity Effect

Inactive Publication Date: 2013-09-11
TAIZHOU UNIV
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Problems solved by technology

However, carbon nanotube nanomaterials are generally difficult to disperse in the water treatment process, and difficult to recycle after treatment.

Method used

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  • Preparation method of magnetic graphitized carbon nano pipe adsorbing agent in chitosan surface modification
  • Preparation method of magnetic graphitized carbon nano pipe adsorbing agent in chitosan surface modification
  • Preparation method of magnetic graphitized carbon nano pipe adsorbing agent in chitosan surface modification

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Embodiment Construction

[0023] The present invention is further described below in conjunction with specific embodiments.

[0024] The preparation method of the magnetic graphitized carbon nanotube adsorbent modified by the chitosan surface is characterized in that the method comprises the following steps:

[0025] Step 1: Preparation of chitosan acetic acid solution: add 1.0-2.0g chitosan to 100mL 1.5-3.0% (volume ratio) acetic acid solution, stir to dissolve, the mass volume ratio of chitosan and acetic acid aqueous solution is 1 : 50~100, get chitosan acetic acid solution;

[0026] Step 2: Add 0.4g Fe 3 o 4 and 0.2g of graphitized carbon nanotubes were added to 40mL of the above-mentioned chitosan-acetic acid solution, and ultrasonicated for 10-30min to obtain a uniform dispersion system;

[0027] Step 3: system emulsification, add 80mL OP emulsifier and 4mL Span-80 to the system obtained in step 2, and fully stir with a motor at 150-200 rpm for 30min to obtain an emulsification system;

[002...

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Abstract

The invention discloses a preparation method of a magnetic graphitized carbon nano pipe adsorbing agent in chitosan surface modification. The magnetic graphitized carbon nano pipe adsorbing agent has high adsorption capacity on azo dye, and also achieves high saturation magnetic strength which can ensure separation from water bodies through an external magnetic field; the problem that an existing powder body nano adsorbing material can not be separated, recovered and recycled at present is solved, meanwhile, the magnetic graphitized carbon nano pipe adsorbing agent has the advantages that the preparation process is simple, a condition is easy to control, and large-scale batch production is achieved.

Description

technical field [0001] The invention belongs to the technical field of environmental nano new functional materials, in particular to a preparation method of a chitosan surface-modified magnetic graphitized carbon nanotube adsorbent. Background technique [0002] Environmental pollution is a major challenge faced by mankind at present, and it is also one of the two major themes that must be given priority in my country's sustainable development strategy. According to the 2010 Bulletin on the State of the Environment in China, the total discharge of wastewater in the country is 61.73 billion tons, of which the discharge of industrial wastewater is 23.75 billion tons and the discharge of urban domestic sewage is 37.98 billion tons. It is worth noting that many traditional industrial industries in my country, such as printing and dyeing and pharmaceutical industries, often contain a wide variety of organic pollutants due to their long production processes, complex organic wastew...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30
Inventor 朱华跃蒋茹付永前姚俊陈艳雯
Owner TAIZHOU UNIV
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