The effect and model of silica concentrations on physical properties and particle sizes of three-dimensional SBA-16 nanoporous materials

Pore size, wall thickness, and microporosity of cubic SBA-16 with 3D, super-large channel can be bridled simply by varying silica concentrations. A reasonable model is also proposed and is applicable to other system such as SBA-15. Ultra-thick wall thickness of 8.5–9.1 nm for SBA-16 has not been reported and may lead to higher thermal and hydrothermal stability of calcined SBA-16. Particle size in the range of 1.5–10 μm can be controlled similarly and is a fairly important parameter for the application on the stationary phase for separation.