K. Cassiers et al., Synthesis of stable and directly usable hexagonal mesoporous silica by efficient amine extraction in acidified water, CHEM COMMUN, (24), 2000, pp. 2489-2490
The amine template of hexagonal mesoporous silica (HMS) can be efficiently
recovered and re-used by a new extraction procedure in acidified water rend
ering a directly usable high quality mesoporous support.