Herein, a unique nanohybrid foam was fabricated with titanium dioxide (TiO₂)-carbon quantum dots (CQDs) nanoparticles intercalated between graphene oxide (GO) layers via a facile and low-cost solvothermal method. Compared with pure GO foam, the fabricated GO-TiO₂-CQDs foam displayed high degradation rate towards methyl orange (MO), methylene blue (MB), and rhodamine B (RhB), respectively, under the Xenon lamp irradiation. The composite foam can be used for several times and remain a high degradation rate without structural damage. The photochemical property was attributed to the 3D porous structure of GO-TiO₂-CQDs foam, in which ultrafine hydrogenated TiO₂-CQDs nanoparticles were densely anchored on the GO sheets. This paper provides an efficient strategy to tune the charge transport and thus enhance the photocatalytic performance by combining the semi-conductive GO and quantum dots.

在这里，独特的纳米混合泡沫由二氧化钛（TiO ₂）-碳量子点（CQDs）纳米粒子通过简便且低成本的溶剂热方法插入到氧化石墨烯（GO）层之间制成。与纯GO泡沫相比，在氙灯照射下，制成的GO-TiO ₂ -CQDs泡沫分别对甲基橙（MO），亚甲基蓝（MB）和若丹明B（RhB）表现出较高的降解率。该复合泡沫可以使用多次，并且保持高降解速率而不会破坏结构。光化学性质归因于GO-TiO ₂ -CQDs泡沫的3D多孔结构，其中超细氢化TiO ₂-CQDs纳米颗粒紧密地锚固在GO片材上。本文提供了一种有效的策略来调节电荷传输，从而通过结合半导体GO和量子点来增强光催化性能。