Nanocrystalline GaSbO4 with high surface area prepared via a facile hydrothermal method and its photocatalytic activity study

► Facile hydrothermal method to nanocrystalline GaSbO4 with large surface area. ► GaSbO4 shows photocatalytic activity for the degradations of salicylic acid and acetone. ► The photocatalytic mechanism of GaSbO4 was proposed based on the ESR result.