Three phase nanocomposites g-C₃N₄/rGO/TiO₂ were synthesized successfully under hydrothermal reaction conditions using g-C₃N₄ nanosheets as matrix, as well as TiO₂ sol and graphene oxide as the precursors of nano-size anatase and reduced graphene oxide (rGO), respectively. The photocatalytic performance of samples was investigated by degrading Rhodamine B (RhB) solution under sunlight irradiation with a xenon lamp. The results show that g-C₃N₄/rGO/TiO₂ three-phase composite nanomaterial was successfully prepared. g-C₃N₄/rGO/TiO₂ exhibited a satisfactory photocatalytic activity and cycle stability when the mass ratio of g-C₃N₄ nanosheets (0.6 g) to nano-TiO₂ (0.2 g) was 3:1, the mass of GO was 0.002 g, the hydrothermal temperature and time were 160 °C and 6 h, respectively. When photocatalysis for 60 min, the degradation rate of RhB solution (100 mL, 10 mg/L) by g-C₃N₄/rGO/TiO₂ (100 mg) reached 99.63%. Main reasons for these results lie in the significantly improved separation efficiency of photogenerated electron-hole pairs due to the construction of g-C₃N₄/TiO₂ heterojunction, the enhanced optical absorption and the increased specific surface area.

以gC ₃ N ₄纳米片为基质，以TiO ₂溶胶和氧化石墨烯为纳米锐钛矿和还原型氧化石墨烯的前​​驱体，在水热反应条件下成功合成了三相纳米复合材料gC ₃ N ₄ / rGO / TiO _2。 rGO）。通过在氙灯的阳光照射下降解若丹明B（RhB）溶液来研究样品的光催化性能。结果表明，成功制备了gC ₃ N ₄ / rGO / TiO ₂三相复合纳米材料。gC ₃ N ₄ / rGO / TiO ₂当gC ₃ N ₄纳米片（0.6 g）与纳米TiO ₂（0.2 g）的质量比为3：1，GO的质量为0.002 g，水热温度和时间分别为3：1时，显示出令人满意的光催化活性和循环稳定性。160°C和6 h。当光催化60分钟时，gC ₃ N ₄ / rGO / TiO ₂（100 mg）对RhB溶液（100 mL，10 mg / L）的降解率达到99.63％。这些结果的主要原因在于由于构造了gC ₃ N ₄ / TiO ₂而大大提高了光生电子-空穴对的分离效率。 异质结，增强的光吸收和增加的比表面积。