Infiltration and defiltration of an electrolyte solution in nanopores

The motion of confined liquid in a nanoporous silica is controlled by external loadings and modified using calcium chloride. The addition of calcium chloride results in a moderate increase in infiltration pressure and an order-of-magnitude increase in system recoverability, which, especially for the smallest nanopores, is contradictory to the predictions of classic interface/surface theories. This should be attributed to the confinement effect of nanopore walls. (c) 2006 American Institute of Physics.