Hydrophobic Modification of Activated Carbon And Performance for Oi-l Water Separation

Activated carbon has the advantages of developed pores, high specific surface area, and low cost.

Point-like adsorption materials are widely used adsorption materials and are often used in wastewater, air pollution control, oil-water separation and other fields. Since the surface of activated carbon contains It has more oxygen-containing functional groups and is highly hydrophilic. environmental water Competitive adsorption occurs between molecules and pollutant molecules to form activated carbon.

The adsorption effect of pollutant molecules becomes worse, thereby accelerating the "aging" and "chemical" processes of activated carbon.

At present, activated carbon hydrophobic modification methods mainly include alkali modification, etc.Ion vapor deposition, heat treatment, chemical grafting, etc. active After the carbon is modified with NaOH solution, the surface non-polarity is enhanced and the hydrophobicity is improved. Improved to a certain extent.