In this work, an extremely high activity for visible light driven photocatalytic degradation of organic dyes was achieved on a restacked titanate nanosheets (rs-TNSs) material with the assistance of hydrogen peroxide (H 2 O 2 ). The photocatalyst was obtained via exfoliating layered titanate precursor and the following flocculation by acidic solution, and its porous structure was further characterized with these technologies of scan electron microscopy, X-ray diffraction and nitrogen sorption. This rs-TNSs material exhibited prominent activity for photodecomposing Rhodamine B, ~90% dyes being removed in the first 5min, and the photocatalytic efficiency was much higher than those of the layered precursor and commercial Degussa P25 TiO 2 under the same condition. The possible mechanism for enhanced photocatalytic activity was proposed: enlargement of the absorption spectrum to visible region by the surface modification of peroxide groups; acceptance of photogenerated electrons by H 2 O 2 to reduce the recombination of electron–hole pairs and produce oxidative species of hydroxyl radicals. Additionally, the influences of H 2 O 2 dosage, dye concentration and the reusability of photocatalyst were further investigated.