Graphene　oxide　(GO)　was　firstly　fabricated　from　graphite　powder　by　Hummers　method.　Then　a　series　of　GO/Ag2CO3　composite　photocatalysts　(0.1%　GO/Ag2CO3,　0.5%　GO/Ag2CO3,　1%　GO/Ag2CO3,　4%　GO/Ag2CO3)　were　synthesized　by　a　facile　liquid　deposition　process.　The　produced　products　were　characterized　by　powder　X-ray　diffraction　(XRD),　N-2　physical　adsorption,　scanning　electron　microscopy　(SEM),　transmission　electron　microscopy　(TEM),　Fourier　transform　infrared　spectroscope　(FT-IR),　Raman　spectra　and　UV-vis　diffuse　reflectance　spectroscopy　(UV-vis　DRS).　The　photocatalytic　activity　of　the　samples　was　evaluated　by　photocatalytic　degradation　of　methyl　orange　(MO)　under　visible　light　irradiation.　The　influence　of　GO　concentration　on　the　photocatalytic　activity　of　GO/Ag2CO3　was　investigated.　The　results　showed　that　GO　can　be　easily　dispersed　into　Ag2CO3,　producing　well　contacted　GO/Ag2CO3　composite.　Coupling　of　trace　GO　largely　enhanced　the　visible　light　absorption.　Moreover,　GO　could　suppress　the　growth　of　Ag2CO3　grain　crystals.　With　optimum　GO　content　(0.5%),　the　degradation　rate　of　MO　is　85.37%　after　120　min　light　irradiation,　which　Exhibits　1.53　times　activity　of　that　of　pure　Ag2CO3.　More　importantly,　a　large　improvement　in　stability　was　obtained　over　the　composite.　The　increase　in　photocatalytic　activity　and　stability　could　be　mainly　attributed　to　the　coupling　of　GO　which　increased　the　surface　area　and　suppressed　there　combination　rate　of　e(-)/h(+)　pairs.　(C)　2015　Elsevier　B.V.　All　rights　reserved.