A new photocatalyst is proposed that incorporates TiO₂ nanopowder into a three-dimensional carbon skeleton to create a TiO₂/C porous microsphere with adjustable pore size, and its photocatalytic activity is investigated and compared to that of a commercially available photocatalytic powder (P25). The photocatalytic efficiency of the proposed TiO₂/C porous microsphere achieves a considerable improvement of more than 2–3 times that of P25 when irradiated by UV and visible lights. With the further incorporation of Fe, the TiO₂/C/Fe porous microsphere exhibits maximum photodegradation efficiencies of 97% and 45% when low-power UV and visible lights are the energy sources, respectively; these are significantly higher than the 40% and 10% measured for P25. In addition, the major mechanism for this improvement in photocatalytic activity by the porous microsphere is identified by calculating band gap energies based on a modified Kubelka-Munk function.

提出了一种新的光催化剂，该方法将TiO ₂纳米粉体整合到三维碳骨架中，以创建孔径可调的TiO ₂ / C多孔微球，并对其光催化活性进行了研究，并与市售的光催化粉末（P25）进行了比较。 。所提议的TiO ₂ / C多孔微球的光催化效率，在受到紫外线和可见光照射时，可达到P25的2-3倍以上的显着提高。随着铁的进一步掺入，TiO ₂当低功率紫外线和可见光为能源时，/ C / Fe多孔微球的最大光降解效率分别为97％和45％。这些显着高于P25测得的40％和10％。此外，通过基于改进的Kubelka-Munk函数计算带隙能，可以确定多孔微球改善光催化活性的主要机理。