A method for preparing hollow balls and hollow balls with composite structures by a template process

The present invention relates to hollow structured materials, particularly, relates to the preparation of inorganic, metal, organic hollow spheres and composite hollow spheres with polymer hollow spheres as template, and to the method for preparing hollow spheres having photic, electric, magnetic, catalytic characteristics and composite structure thereof. With polymer hollow spheres as template, as well as sol-gel method, sedimentation, redox process, the composite hollow spheres were prepared by forced interface method or surface settling process, after the template polymer were eliminated by high temperature sintering or solvent selectively extraction, the inorganic, metal, organic hollow spheres were obtained. By controlling the reactivity of reactants, charging manner, the concentration of reactants and recycle reactive method, the control of the structure and size of the hollow spheres could be realized, and at the same time, the composition of numeral materials could also be realized. The hollow spheres of the invention not only have good dispersibility, but also have excellent strength and size stability. The present invention also relates to the applications of those hollow structured materials.