Adsorption characteristics of haloacetonitriles on functionalized silica-based porous materials in aqueous solution

- 3-Mercaptopropyl-grafted hexagonal mesoporous silicate has a high dichloroacetonitrile adsorption capacity.
- The adsorption mechanism occurs via an ion-dipole electrostatic interaction.
- The adsorption capacity strongly depends on the pH of the solution.
- Molecular structure of haloacetonitriles influences the adsorption capacity and selectivity.