Controllable synthesis of Zn2TiO4@carbon core/shell nanofibers with high photocatalytic performance

► Synthesis of Zn2TiO4@carbon nanofibers with different thickness of carbon layers. ► Zn2TiO4@carbon NFs showed photocatalytic activity for the degradation of Rhodamine B. ► Easy photocatalyst separation and reuse. ► A general way to fabricate other carbon-coated core/shell photocatalysts.