Methane　activation　under　moderate　conditions　and　with　good　selectivity　for　value-added　chemicals　still　remains　a　huge　challenge.　Here,　we　present　a　highly　selective　catalyst　for　the　transformation　of　methane　to　methanol　composed　of　highly　dispersed　iron　species　on　titanium　dioxide.　The　catalyst　operates　under　moderate　light　irradiation　(close　to　one　Sun)　and　at　ambient　conditions.　The　optimized　sample　shows　a　15%　conversion　rate　for　methane　with　an　alcohol　selectivity　of　over　97%　(methanol　selectivity　over　90%)　and　a　yield　of　18　moles　of　alcohol　per　mole　of　iron　active　site　in　just　3　hours.　X-ray　photoelectron　spectroscopy　measurements　with　and　without　xenon　lamp　irradiation,　light-intensity-modulated　spectroscopies,　photoelectrochemical　measurements,　X-ray　absorption　near-edge　structure　and　extended　X-ray　absorption　fine　structure　spectra,　as　well　as　isotopic　analysis　confirm　the　function　of　the　major　iron-containing　species-namely,　FeOOH　and　Fe2O3,　which　enhance　charge　transfer　and　separation,　decrease　the　overpotential　of　the　reduction　reaction　and　improve　selectivity　towards　methanol　over　carbon　dioxide　production.