Spontaneous solar-driven water splitting to generate H-2 with no pollution discharge is an ideal H-2 generation approach. However, its efficiency remains far from real application owing to the poor light harvesting and ultrafast charge recombination of photocatalysts. To address these issues, herein, we employed a novel but simple chemical bath deposition (CBD) method to construct CdS/SrTiO3 nanodots-on- nanocubes at room temperature (ca. 25 degrees C). The as-synthesized nanohybrids not only expand light absorption from ultraviolet (UV) to visible light but also significantly retard charge recombination owing to the well-defined heterostructure formation. As a result, the CdS/SrTiO3 exhibits high photocatalytic performance with H-2 evolution rate of 1322 mu mol g(-1) h(-1), which is 2.8 and 12.2 times higher than that of pristine CdS and SrTiO3, respectively. This work provides a universal approach for the heterostructure construction, and inspired by this, higher efficient photocatalysts for H-2 evolution may be developed in the near future. (C) 2018 Elsevier Inc. All rights reserved.