This paper reported the materials doped with oaminobenzoic acid in the silica gels which were prepared by solgel process from the water glass used acetic ether as a latent acidic reagent.The materials which are doped with various concentration oaminobenzoic acid or heated at different temperatures were studied by TGDTA,PL,UV,and FTIR methods.The heating and optical stability of the doped materials were better then acidic silica gel composite materials.
