▎ 摘　　要

The water-dispersible and recyclable magnetic TiO2/graphene nanocomposites (TiO2/Fe3O4/GN-SO3H) were fabricated and applied as efficient photocatalyst for removal of methylene blue (MB) from water. The nanocomposites displayed good water-dispersibility, high photocatalytic activity and convenient magnetic separation. Furthermore, the novel photocatalyst could be recovered and recycled for 10 consecutive trials without significant loss of its activity. (C) 2018 Elsevier B.V. All rights reserved.