Orientation specific deposition of mesoporous particles

Orientation specific deposition of mesoporous particles

Blog Article

We present a protocol for a facile orientation specific deposition of plate-like mesoporous SBA-15 silica particles onto a surface (mesopores oriented normal to surface).A drop of an aqueous dispersion of particles is placed on the surface and water Hockey Accessories - Laces vaporizes under controlled relative humidity.Three requirements are essential for uniform coverage: particle dispersion should not contain aggregates, a weak attraction between particles and surface is needed, and evaporation rate should be low.Aggregates are removed by stirring/sonication.

Weak attraction is realized by introducing cationic groups to the surface.Insight into the mechanisms of the so-called Gift Sets coffee stain effect is also provided.