In　this　work,　the　impact　of　CeOx　doping　on　a　TiO2-SiO2　supporter　on　the　Ag　based　adsorptive　desulfurization　for　Chinese　standard　diesel　was　studied.　The　dispersion　and　valence　states　of　Ce,　Ti　and　Ag　species　were　characterized,　and　the　impact　of　Ce　doping　was　investigated.　The　results　indicated　that　Ce　species　and　Ti　species　were　dispersed　evenly　on　the　surface　of　SiO2　via　a　novel　co-impregnation　method.　Following　CeOx　doping,　the　Ag　species　were　in　the　form　of　oxides　(about　5　nm)　instead　of　metallic　Ag　particles　(about　35　nm),　which　is　due　to　the　large　amount　of　coordinative　unsaturated　sites　provided　by　the　interaction　between　CeOx　and　TiO2,　as　well　as　the　oxidation-reduction　property　of　CeOx.　The　Ag　in　the　active　oxide　state　(Ag2O2)　and　dispersed　evenly　on　the　supporter　could　interact　with　sulfur　compounds　more　favorably,　and　therefore　showed　a　good　performance　in　the　adsorptive　desulfurization.　In　both　static　batch　and　dynamic　breakthrough　desulfurization　tests,　Ag-CeOx/TiO2-SiO2　was　proved　to　be　a　more　efficient　adsorbent　compared　with　Ag-TiO2-SiO2.　It　was　found　that　the　desulfurization　performance　of　Ag-TiO2-SiO2　exhibited　an　excellent　improvement　(22.5%)　after　being　doped　with　CeOx.　In　the　static　equilibrium　tests,　the　equilibrium　sulfur　capacity　of　Ag-CeOx/TiO2-SiO2　was　up　to　5.38　mg/g　for　CN-II　diesel　(sulfur　content　952.9　mg/kg)　and　the　sulfur　content　of　the　CN-IV　diesel　(sulfur　content　39.0　mg/kg)　after　desulfurization　was　less　than　10　mg/kg,　which　could　meet　the　CN-V　standard.　©　2016,　Science　Press.　All　right　reserved.