CMK-3　and　C-FDU-15　samples　were　synthesized　using　hard-templating　and　evaporation-induced　self-assembly　(EISA)　methods,　respectively.　The　pore　structures　of　CMK-3　and　C-FDU-15　as　well　as　commercial　activated　carbon　were　characterized　by　means　of　X-ray　diffraction,　field　emission　scanning　electron　microscopy,　transmission　electron　microscopy,　and　N-2　adsorption-desorption.　Adsorption　of　NO　was　investigated　by　means　of　thermogravimetric　analysis,　temperature-programmed　desorption　of　NO　+　O-2,　and　in　situ　diffuse　reflectance　Fourier　transform　infrared　spectroscopy.　The　results　show　that　the　CMK-3　and　C-FDU-15　materials　possessed　ordered　and　uniform　structures.　The　co-adsorption　capacity　of　NO　and　O-2　decreased　in　the　sequence　CMK-3　(88.6　mg/g)　＞　C-FDU-15　(71.7　mg/g)　＞　AC　(25.3　mg/g).　There　were　two　main　adsorption　species　on　CMK-3　and　C-FDU-15:　nitrite　and　nitrate.　Nitrite　is　converted　to　nitrate　easily.　However,　the　adsorption　species　were　more　complex　on　AC,　with　nitrite　being　the　main　species.　Moreover,　CMK-3　and　C-FDU-15　exhibit　excellent　regeneration　efficiency　compared　with　AC.　The　excellent　NO　adsorption　performance　of　CMK-3　and　C-FDU-15　was　associated　with　their　ordered　mesoporous　structures　and　high　surface　areas.　The　research　provides　more　options　for　NO　adsorption　in　the　future.　(c)　2019　The　Research　Center　for　Eco-Environmental　Sciences,　Chinese　Academy　of　Sciences.　Published　by　Elsevier　B.V.