Surface reconstructed SrTiO₃ nanocrystals were synthesized by a thermal treatment process in presence of NaBH₄ and SrTiO₃ nanocrystals. The surface reconstruction of SrTiO₃ nanocrystals is attributed to the introduction of surface oxygen vacancies or Ti sites (such as Ti³⁺ and Ti²⁺) during the hydrogenation treatment process. The light absorption and the charge transfer ability of SrTiO₃ nanocrystals are simultaneously enhanced due to surface oxygen vacancies or Ti sites (such as Ti³⁺ and Ti²⁺), which are beneficial to photocatalytic water splitting. Meanwhile, these defects also change the redox potential of the photocatalysts. Since there existed a synergistic effect between the three, the ratio of hydrogen to oxygen production was also regulated.

在NaBH ₄和SrTiO ₃纳米晶的存在下，通过热处理工艺合成了表面重建的SrTiO ₃纳米晶。SrTiO ₃纳米晶体的表面重建归因于在氢化处理过程中引入了表面氧空位或Ti位点（例如Ti ³⁺和Ti ²⁺）。光吸收和的SrTiO的电荷转移能力₃纳米晶体被同时增强由于表面氧空位或Ti位点（如Ti ³⁺和Ti ²⁺），有利于光催化水分解。同时，这些缺陷也改变了光催化剂的氧化还原电势。由于三者之间存在协同作用，因此还调节了氢气与氧气的产生比例。