The　octahedral　molecular　sieve　(OMS-2)-supported　Fe　(　x　Fe/OMS-2:　x　=　1,　3,　5,　and　10)　catalysts　were　prepared　using　the　pre-incorporation　method.　Physicochemical　properties　of　the　as-synthesized　materials　were　characterized　by　means　of　various　techniques,　and　their　catalytic　activities　for　CO,　ethyl　acetate,　and　toluene　oxidation　were　evaluated.　Among　all　of　the　samples,　performed　the　best,　with　the　reaction　temperature　required　to　achieve　90%　conversion　(　T　90%　)　being　160　degrees　C　for　CO　oxidation,　210　degrees　C　for　ethyl　acetate　oxidation,　and　285　degrees　C　for　toluene　oxidation.　Such　a　good　catalytic　performance　of　5Fe/OMS-2　was　associated　with　its　high　(Mn　3　+　+　Mn　2　+　)　content　and　adsorbed　oxygen　species　concentration,　and　good　lowtemperature　reducibility　and　lattice　oxygen　mobility　as　well　as　strong　interaction　between　Fe　and　OMS-2.　In　addition,　catalytic　mechanisms　of　the　oxidation　of　three　pollutants　over　the　5Fe/OMS-2　catalyst　were　also　studied.　It　was　found　that　CO,　ethyl　acetate　or　toluene　was　first　adsorbed,　then　the　related　intermediates　were　formed,　and　finally　the　formed　intermediates　were　completely　converted　into　CO　2　and　H　2　O.　(c)　2021　The　Research　Center　for　Eco-Environmental　Sciences,　Chinese　Academy　of　Sciences.　Published　by　Elsevier　B.V.