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One-pot method for preparing iron sulfide/carbon composite mesoporous millimeter ball

A compound and carbon composite technology, applied in the preparation/purification of carbon, iron sulfide, etc., can solve the problems of high toxicity of organic reagents and complicated processes, and achieve the effects of cheap raw materials, low cost and short preparation period

Inactive Publication Date: 2014-09-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the technical problems of complicated preparation process of the existing spherical sulfur-iron compound and the high toxicity of organic reagents used in the preparation process, and provides a one-pot method for preparing sulfur-iron compound / carbon composite mesoporous millimeter spheres

Method used

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  • One-pot method for preparing iron sulfide/carbon composite mesoporous millimeter ball
  • One-pot method for preparing iron sulfide/carbon composite mesoporous millimeter ball
  • One-pot method for preparing iron sulfide/carbon composite mesoporous millimeter ball

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specific Embodiment approach 1

[0021] Embodiment 1: The method for preparing sulfur-iron compound / carbon composite mesoporous millimeter spheres by the one-pot method of the present embodiment is carried out according to the following steps:

[0022] 1. Weigh iron source, deionized water and strong acidic cation exchange resin respectively, wherein the mass ratio of deionized water to iron source is 1:0.06~0.12, and the mass ratio of strong acidic cation exchange resin to iron source is 1:0.6 ~1.2;

[0023] 2. Add the iron source weighed in step 1 into the deionized water weighed in step 1, stir and dissolve to obtain an iron source solution;

[0024] 3. Add the strongly acidic cation exchange resin weighed in step 1 into the iron source solution obtained in step 2 under stirring conditions, and stir for 6-20 hours at room temperature;

[0025] 4. After the stirring is finished, the strong acidic cation exchange resin is filtered out, washed 5-8 times with deionized water, and dried in an oven at a tempera...

specific Embodiment approach 2

[0029] Embodiment 2: This embodiment differs from Embodiment 1 in that the iron source in step 1 is ferric chloride or ferric nitrate. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0030] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the room temperature condition in Step 3 refers to the temperature being 18°C ​​to 25°C. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a one-pot method for preparing an iron sulfide / carbon composite mesoporous millimeter ball, and relates to a synthesis method of a mesoporous iron sulfide millimeter ball. The invention solves the technical problems that the traditional preparation method of a spherical iron sulfide has a complex process and the toxicity of an organic reagent applied in the preparation process is high. The method comprises the following steps of: adding strong acid cation exchange resin to an iron source solution to be stirred, filtering and drying the strong acid cation exchange resin, and then putting the dried strong acid cation exchange resin in a tubular furnace to be calcined to obtain the iron sulfide / carbon composite mesoporous millimeter ball. The iron sulfide / carbon composite mesoporous millimeter ball prepared by the invention has a spherical regular morphology, and a size distribution range of 0.1mm-1mm, raw material are cheap and easy to obtain, the process is simple, and the ball can be macro-prepared and processed; and the ball internally contains a large amount of mesopores with a diameter of 3nm-5nm, so that the ball can be used for wastewater treatment and the catalysis field, and has potential wide application.

Description

technical field [0001] The invention relates to a synthesis method of sulfur-iron compound / carbon composite millimeter spheres containing mesoporous. Background technique [0002] Iron sulfide compounds are a new type of metal sulfide semiconductor materials. Due to their unique structure and outstanding optical, catalytic and electrochemical properties, they have been successfully used in solid lubricants, electrodes, heavy metal ions (Cr and Hg, etc. ) Wastewater treatment and catalysis fields have received more and more attention. There are many preparation methods for iron sulfide compounds, which can be generally divided into liquid phase reaction method and direct heating method. For example, by selecting a suitable microemulsion system, FeS spherical particles can be prepared by using ferrous chloride and sodium sulfide; Acetamide and ferrous ammonium sulfate are the main raw materials. Under the buffer solution with a pH value of 7.5-10 and nitrogen protection, nano...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/12C01B31/02C01B32/05
Inventor 姜艳秋林凯峰许宪祝
Owner HARBIN INST OF TECH