A well-defined mesoporous amine silica surface via a selective treatment of SBA-15 with ammonia†
Abstract
2D double-quantum 1H–Si–OH surface
Si–NH2. The “gem” di-silanols (
Si(OH)2) remain intact. Treatment using HMDS produces (
Si(OSiMe3)2) but leaves
Si–NH2 untouched. The resulting surface is hydrophobic and stable.