The synthesis of U3O8/SiO2 nano composites was achieved with a solution containing 10 mL of TEOS, 0.6389 g uranyl acetate (UO2(CH3COO2)2•2H2O) and 3.5 mL of DI water. After, 2methyoxyethanol C3H8O2 was added to the solution and stirred for 20 minutes. The resulting preparation was aged for 72 h. The sample was then dried at 100° C for 4 h. In this work a material weight of 1.0556 g of material was calcinated under an N2 atmosphere for 4h.