The [Bmim]Cl has dual functions: (i) a source
for the formation of AgCl seeds and (ii) a shape-controlling agent
to regulate directional overgrowth of AgCl seeds, leading to the formation
of octapod-shaped Ag:AgCl particles. It has been shown
that the Ag:AgCl octapods can be used as efficient and stable photocatalysts
for the degradation of MB molecules.