SiO2·Trop+·Pro− was prepared, identified and used for the first time.
SiO2·Trop+·Pro−-Cu2+ was used in enantioseparation for the first time.
The mode of ‘reuse after adsorption’ was developed and applied.
Multifunction of the material was focused for metal ions and d,l-amino acids.
Mechanism of enantioseparation was discovered by comparison experiments.