3.3. Size-Dependent Properties of Silica Nanoparticles.
The properties of nanomaterials are usually size dependent. The nanomaterial often exhibits unique physical and chemical properties compared to the bulk counterparts. As described earlier, literatures describing the size-dependent properties of silica nanoparticles are not much available. Some of the properties such as specific surface area and photoluminescence properties with respect to the particle size are scarcely reported. Therefore, in this section, some general size-dependent properties of nanoceramics will be briefly discussed.