In　this　paper,　a　series　of　Co-doped　alpha-FeOOH　(Goethite)　is　prepared　via　a　simple　co-precipitation　method.　The　obtained　samples　are　characterized　in　detail　by　the　powder　X-ray　diffraction　(XRD),　N-2　adsorption　desorption　isotherms,　X-ray　photoelectron　spectroscopy　(XPS),　scanning　electron　microscope　(SEM),　Raman　spectroscopy　and　electron　spin　resonance　(ESR).　H2S　adsorption　experiments　indicate　that　the　Co-doped　alpha-FeOOH　samples　show　strikingly　high　breakthrough　sulfur　capacity　at　low　temperature　(25　degrees　C).　The　maximum　count　reaches　53.2%　at　Co/Fe　=　0.07,　which　is　much　higher　compared　to　that　of　the　undoped　alpha-FeOOH　sample.　The　improved　activity　could　be　mainly　attributed　to　the　larger　surface　area　of　alpha-FeOOH　and　the　increased　lattice　defects　like　oxygen　vacancy　arising　from　the　incorporation　of　Co2+　into　alpha-FeOOH　structure.　(C)　2016　Published　by　Elsevier　B.V.