As a novel structural material, monoliths have attracted intensive attention for several years. It has been widely used in separation and purification, catalysis, synthesis etc. Generally monolith can be classified into two categories: organic polymer-based monolith and silica-based monolith. The former is easy to prepare while it usually suffers from deforming, swelling etc., which severely limited their applications. The latter, which possesses high mechanical strength and can be easily derived with vario...