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. 2015 Aug 14;5:13083. doi: 10.1038/srep13083

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FESEM images of (a) TiO₂; (b) rGO-TiO₂; (c) Fe(III)/TiO₂; (d) Fe(III)/rGO-TiO₂. TEM (e) and HRTEM (f) images of Fe(III)/rGO-TiO₂ photocatalyst: the red arrows in (e) and (f) showing the rGO and Fe(III) clusters, respectively.