抄録
Silica–based membranes for molecular separation, which includes both pure silica (SiO2) and organosilica, are reviewed. A new trend to fabricate silica–based membranes is summarized from the viewpoints of materials (ion–doping, organosilica, carbonized–template silica), structure control (interlayer–free, layered structure, hydrophobic intermediate layer), and fabrication processes (high–temperature firing, plasma–enhanced CVD, interfacial polymerization). Important applications to membrane reactors and the stability of organosilica membranes under hydrothermal conditions are introduced.
