There is provided macrostructures of porous inorganic material which can have
controlled size, shape, and/or porosity and a process for preparing the macrostructures.
The macrostructures comprise a three-dimension network of particles of porous inorganic
materials. The process for preparing the macrostructures involves forming an admixture
containing a porous organic ion exchanger and a synthesis mixture capable of forming
the porous inorganic material and then converting the synthesis mixture to the
porous inorganic material. After formation of the composite material, the porous
organic ion exchanger can be removed from the composite material to obtain the macrostructures.