Metal Ag is impregnated on SBA-15 via two different methods to prepare Ag/SBA-15 composite material that is then characterized by means of SEM,UV vis and XRD.CO catalytic oxidation experiment is carried out on the prepared Ag/SBA-15 to evaluate its catalytic performance.It is verified that Ag/SBA-15 prepared via impregnation after removing the template has better catalytic performance,and the material with a metal loading of 1％has the best catalytic performance,needing the lowest temperature for catalysis and delivering the highest CO conversion rate.
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