Hydrophilic functional carbon sphere and application thereof for removing heavy metal ions in waste water

A heavy metal ion and hydrophilic technology, which is applied in alkali metal compounds, water/sewage treatment, adsorption water/sewage treatment, etc., can solve the problems of unfavorable environmental protection, harsh conditions, and cumbersome steps of organic solvents, and achieve rich content in nature , mild reaction conditions and simple process

Active Publication Date: 2014-03-12
HEBEI UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

In summary, the use of adsorbents to adsorb heavy metal ions is an effective method for treating wastewater containing heavy metal ions, but it is generally reported that the method for preparing adsorbents is cumbersome, the conditions are harsh, and the organic solvents used are not conducive to env

Method used

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  • Hydrophilic functional carbon sphere and application thereof for removing heavy metal ions in waste water

Examples

Experimental program
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Example Embodiment

[0028] Example 1

[0029] a. Preparation of starch solution: Dissolve potato starch in water, heat and dissolve at 100°C for 0.5h, and prepare a 10g / L transparent solution.

[0030] b. Preparation of hydrophilic functional carbon ball: Take 120mL of the prepared solution and put it in a 200mL autoclave, and hydrothermally react at 200℃ for 4h. After the reaction is completed, cool to room temperature naturally to obtain hydrophilic functional carbon. Brown solution of the ball;

[0031] c. Take a brown solution containing hydrophilic functional carbon spheres and freeze-dry to obtain monodisperse hydrophilic functional carbon sphere powder.

[0032] d. Preparation of copper ion solution: the weighed copper chloride is prepared into a solution with a concentration of 0.05M for use;

[0033] f. Method for removing copper ions from wastewater with hydrophilic functional carbon balls: Take 50 mL of the hydrophilic functional carbon ball solution obtained in step b in a beaker, stir at room...

Example Embodiment

[0034] Example 2

[0035] a. Preparation of starch solution: Dissolve wheat starch in water, heat and dissolve at 90°C for 24 hours, and prepare a transparent solution of 0.1g / L.

[0036] b. Preparation of hydrophilic functional carbon balls: Put 150mL of the prepared solution into a 200mL autoclave, and hydrothermally react at 120°C for 24h. After the reaction is complete, cool to room temperature naturally to obtain hydrophilic functional carbon. Brown solution of the ball;

[0037] c. Take a brown solution containing hydrophilic functional carbon spheres and freeze-dry to obtain monodisperse hydrophilic functional carbon sphere powder.

[0038] d. Preparation of zinc ion solution: Weigh a certain amount of zinc chloride to prepare a solution with a concentration of 0.001M for use;

[0039] f. Method for removing zinc ions from wastewater with hydrophilic functional carbon balls: Take 100 mL of the hydrophilic functional carbon ball solution obtained in step b in a beaker, stir at ro...

Example Embodiment

[0040] Example 3

[0041] a. Preparation of starch solution: Dissolve corn starch in water, heat and dissolve at 100°C for 6 hours, and prepare a 15g / L transparent solution.

[0042] b. Preparation of hydrophilic functional carbon balls: Take 120mL of the prepared solution and put it in a 200mL autoclave, and hydrothermally react at 180°C for 12h. After the reaction is completed, cool to room temperature naturally to obtain hydrophilic functional carbon. Brown solution of the ball;

[0043] c. After freeze-drying the brown solution containing hydrophilic functional carbon spheres, monodisperse hydrophilic functional carbon sphere powder is obtained.

[0044] d. Preparation of cadmium heavy metal ion solution: Weigh a certain amount of cadmium chloride to prepare a solution with a concentration of 0.05M for use;

[0045] f. Method for removing cadmium ions from wastewater with hydrophilic functional carbon balls: Take 50 mL of the hydrophilic functional carbon ball solution obtained in ...

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Abstract

The invention provides a hydrophilic functional carbon sphere and a preparation method thereof. The hydrophilic functional carbon sphere uses starch as a raw material, the hydrophilic functional carbon sphere with uniform size is prepared through hydrothermal reaction, then the hydrophilic functional carbon sphere is used to remove heavy metal ions in the waste water in the form of a solution, and the invention further provides the application of the hydrophilic functional carbon sphere for removing the heavy metal ions in the waste water. The hydrophilic functional carbon sphere prepared through the method has favorable dispersity and stability, and can be stably dispersed in water for more than one month without precipitating, so that the effect of removing the heavy metal ions in water treatment is improved, the removal rate of the heavy metal ions of the hydrophilic functional carbon sphere is higher than that of a hydrophobic carbon material by 35% under the same conditions, the hydrophilia of the carbon sphere is controlled through controlling the hydrothermal temperature and the hydrothermal time, and the operation is simple.

Description

technical field [0001] The invention relates to the field of inorganic functional materials, in particular to a preparation method of hydrophilic functional carbon spheres and its application in treating heavy metal ion pollution in wastewater. Background technique [0002] The ocean area is vast, accounting for about 71% of the earth's surface area, and it is an important place to maintain the balance of the global ecosystem. Pollutants that flow into the ocean from the land are accepted by the ocean. When the discharge of the inflowing pollutants is lower than the purification capacity of the ocean itself, the marine environment will not change significantly. When the discharge of the inflowing pollutants is higher than the purification capacity of the ocean itself capacity, the oceans are polluted. Marine pollution is characterized by multiple pollution sources, strong persistence, wide spread and difficulty in control, which poses severe challenges to the utilization of...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28C02F1/28C02F1/62C02F101/20
Inventor 李银辉陈建新韩健卢爱党苏敏
Owner HEBEI UNIV OF TECH
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