The interface architecture plays important role in the charge transfer and separation of S-scheme photocatalysis. Herein, we propose a strategy to synthesize (reduced graphene oxide, γ-Fe₂O₃)/C₃N₄ S-scheme heterojunctions by thermal treatment of MIL-101(Fe) and melamine. (rGO, γ-Fe₂O₃)/C₃N₄ presents a high oxygen evolution rate (OER) of 3.85 mmol·g⁻¹·h⁻¹ under visible irradiation, and overall water splitting activity with the hydrogen evolution (HER) and OER rates of 23.3 and 12 μmol·g⁻¹·h⁻¹, respectively. The band alignments by different Fermi levels of C₃N₄ and (rGO, γ-Fe₂O₃) result in internal electric field, which significantly enhances the separation efficiency of photogenerated electrons and holes.

界面结构在S型光催化的电荷转移和分离中起着重要作用。在此，我们提出了一个策略，以合成（还原氧化石墨烯，γ-的Fe ₂ ö ₃）/ C ₃ Ñ ₄通过MIL-101（Fe）的热处理和蜜胺S-方案异质结。（RG0，γ-的Fe ₂ ö ₃）/ C _3所Ñ ₄呈现高氧速率3.85毫摩尔的（OER）·克^-1 ·H ^-1可见光照射下，并整体水分解活性与析氢（HER ）和23.3和12μmol·g ^-1 ·h ^-1的OER率， 分别。被C的不同的费米能级的带比对₃ Ñ ₄和（RG0，γ-的Fe ₂ ö ₃）结果在内部电场，该电场增强显著光生电子和空穴的分离效率。