Z-scheme heterojunction was successfully constructed with (001)-TiO₂ and g-C₃N₄ via electrostatically self-assemble. Z-Scheme heterojunction nanocomposites improve separation efficiency of photogenerated e⁻-h⁺ pairs, which strengthen visible photocatalytic elimination for Rhodamine B. The g-C₃N₄ with narrower bandgap not only forms a stable phase interface with (001)-faceted TiO₂ nanosheets, but also provides high productivity of photo-excited charge carries. Meanwhile, the layered graphite carbon in g-C₃N₄ owns an excellent ability to transfer electrons. The RhB degradation rate of the g-C₃N₄/(001)-faceted TiO₂ hybrid reach up to 99.9% under the visible light for 2 h. This study provided an efficient g-C₃N₄/(001)-faceted TiO₂ photocatalyst with Z-Scheme heterojunction structure has emerged as a promising approach to perfect the photocatalytic capacity of photocatalysts.

Z-scheme异质结通过静电自组装与(001)-TiO ₂和gC ₃ N ₄成功构建。Z-Scheme异质结纳米复合材料提高了光生e ^- -h ⁺对的分离效率，加强了罗丹明B的可见光催化消除。带隙较窄的gC ₃ N ₄不仅与(001)-faceted TiO ₂纳米片形成稳定的相界面，而且还提供了高生产率的光激发电荷载体。同时，gC ₃ N _{4 中}的层状石墨碳具有极好的电子转移能力。gC ₃ N ₄ /(001)-faceted TiO ₂杂化物在可见光下2小时的RhB降解率达到99.9%。该研究提供了一种具有Z-Scheme异质结结构的高效gC ₃ N ₄ /(001)-faceted TiO ₂光催化剂，已成为完善光催化剂光催化能力的有前途的方法。