Method for preparing magnetic mesoporous carbon nanometer microspheres with high adsorption property

A technology of nanometer microspheres and mesoporous carbon, which is applied in the directions of microsphere preparation, microcapsule preparation, chemical instruments and methods, etc., can solve the problems of time-consuming, high energy consumption, complicated operation of magnetic mesoporous carbon, etc., and achieve a simple preparation method. , high adsorption performance, easy to implement effect

Inactive Publication Date: 2012-08-01
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing magnetic mesoporous carbon nanospheres with high adsorption performance in order

Method used

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  • Method for preparing magnetic mesoporous carbon nanometer microspheres with high adsorption property
  • Method for preparing magnetic mesoporous carbon nanometer microspheres with high adsorption property
  • Method for preparing magnetic mesoporous carbon nanometer microspheres with high adsorption property

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specific Embodiment approach 1

[0021] Specific embodiment 1: The method for preparing magnetic mesoporous carbon nanospheres with high adsorption performance of this embodiment is carried out according to the following steps:

[0022] 1) Preparation of template SBA-15: 1. Weigh 6-10 parts of surfactant, 15-20 parts of silicon source and 120-160 parts of acidic solution according to the parts by weight ratio; 2. Weigh step one Take the surfactant and acid solution, stir and mix for 3 hours at a speed of 500-700rpm / min, then add the silicon source weighed in step 1 under stirring conditions, continue to stir and mix at a speed of 500-700rpm / min for 24h to obtain a mixture Then transfer the mixed solution into the reaction kettle; 3. Put the reaction kettle of step 2 into the oven, crystallize at 100°C for 24 hours, then filter the mixed solution after crystallization, and collect the filtered solid phase The product is dried in an oven at 40℃~80℃ for 12h to obtain the initial product; 4. Put the initial product ...

specific Embodiment approach 2

[0030] Specific embodiment two: this embodiment is different from specific embodiment one in that: step 1) preparation of template SBA-15 The surfactant is P123, CTAB or F127. Others are the same as the first embodiment.

specific Embodiment approach 3

[0031] Specific embodiment three: This embodiment is different from specific embodiments one to two in that: Step 1) Preparation of template SBA-15 The silicon source is tetraethylorthosilicate. Others are the same as the first to second specific embodiments.

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Abstract

The invention discloses a method for preparing magnetic mesoporous carbon nanometer microspheres with high adsorption property, relates to a method for preparing carbon nanometer microspheres, and aims to solve the problems of complex operation and high time and energy consumption in the process of preparing magnetic mesoporous carbon by the conventional method. Fe3O4 nanometer microspheres are introduced into mesoporous carbon by a solvothermal method, and mesoporous carbon microspheres with high saturation magnetization degree are prepared and used for removing pollutants such as dyes during water treatment. The magnetic mesoporous carbon nanometer microspheres have the large pore diameter of 4.3nm, the high specific surface area of 741.8m<2>/g, the large pore volume of 1.20cm<3>/g and the high magnetic saturation degree of 7.15emu/g, and can be applied to the fields of water treatment, catalyst carriers, biomedicine and the like.

Description

Technical field [0001] The invention relates to a method for preparing magnetic carbon nano-microspheres. Background technique [0002] Ordered mesoporous carbon is a nanomaterial with high specific surface area, large pore volume, uniform and adjustable pore diameter, and controllable mesostructure. It has a wide range of applications in the fields of catalysis, adsorption, optical devices and electrochemistry. Fe 3 0 4 It is an excellent magnetic nanosphere with superparamagnetic properties and can be easily positioned, guided and separated under the action of an external magnetic field. Mesoporous carbon and Fe 3 O 4 The composite magnetic microspheres can be used in wastewater treatment, catalyst carrier, biological separation and other fields. Although some people currently use the impregnation / calcination method to prepare magnetic mesoporous carbon, the complex preparation route, long time-consuming, high energy consumption, low adsorption and separation properties of thi...

Claims

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Application Information

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IPC IPC(8): B01J13/02B01J20/20B01J20/28B01J20/30
Inventor 孙建敏王同保梁林朱前程
Owner HARBIN INST OF TECH
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