Abstract
An aqueous suspension of coprecipatated hydrous oxides of Fe(III) and Ti(IV) is found to photocatalyse reduction of molecular nitrogen to ammonia with visible light. The activity of the complex catalyst is higher than that of pure hydrous ferric oxide which also catalyses the above reaction. It is suggested that hydrous TiO 2 acts as the hole transfer agent so that water oxidation takes place at the TiO 2 sites and nitrogen reduction at ferric oxide sites.
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