A　series　of　iron　oxide　hydroxides　were　prepared　by　precipitation　at　different　pH　values　using　sodium　carbonate　as　the　precipitant　and　their　performances　for　low-temperature　H2S　adsorption　were　investigated.　The　synthesized　materials　were　characterized　by　N-2　adsorption-desorption　measurements,　powder　X-ray　diffraction,　Raman　spectroscopy,　scanning　electron　microscope　and　electron　spin　resonance.　We　revealed　that　the　iron　oxide　hydroxides　precipitated　in　neutral　and　alkaline　media　exhibited　high　breakthrough　sulfur　capacity,　attributed　to　the　formation　of　a　pure　alpha-FeOOH　phase　with　more　crystal　defects　and　hydroxyl　groups　as　activity　sites.　In　addition,　with　the　increasing　precipitation　pH,　a　gradual　increase　in　the　surface　area　of　the　materials　was　detected　with　Brunauer-Emmett-Teller　analysis　and　was　believed　to　be　partially　responsible　for　the　improved　desulfurization　capability.