A kind of hydrophilic functional carbon sphere and its application in removing heavy metal ions in wastewater

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...

AI Technical Summary

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 environmental protection. Therefore, a Adsorbents with low price, simple preparation process, mild reaction conditions, excellent adsorption performance, no secondary pollution, recyclability, wide application range and broad industrial application prospects have become the hotspots of current research.

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