Yang Yunshuo, Nalesso Marco, Basagni Andrea, Bonetto Ruggero, Signorini Raffaella, Agnoli Stefano, Đorđević Luka, Sartorel Andrea
Department of Chemical Sciences, University of Padova Via Marzolo 1 35131 Padova Italy
J Mater Chem A Mater. 2025 May 20. doi: 10.1039/d5ta01970b.
Photocatalytic nanomaterials combining organic dyes and inorganic semiconductor nanoparticles (NPs) are extensively investigated for light-driven production of solar fuels and for conversion of organic feedstocks. However, their applications for the valorization of abundant raw materials by exploiting low-energy visible light remain limited. In this study, we report a facile preparation of TiO nanoparticles sensitized with a quinacridone (QA) industrial pigment for the aqueous oxidation of glycerol to glyceraldehyde with red light ( = 620 nm), reaching 47.5 ± 5.0 μmol g h of productivity and 80% selectivity in the presence of TEMPO co-catalyst. The hybrid material outperforms the single components and shows recyclability up to at least 5 additional times under red light while maintaining intact productivity; furthermore, it demonstrates versatility by operating also under green, yellow or white light irradiation. We believe that this work will provide a new avenue for using industrial pigment-sensitized materials in photocatalysis exploiting low energy light, providing novel strategies for the future development of this field.
将有机染料与无机半导体纳米颗粒（NPs）相结合的光催化纳米材料，已被广泛研究用于光驱动太阳能燃料的生产以及有机原料的转化。然而，通过利用低能量可见光对丰富原材料进行增值利用方面，它们的应用仍然有限。在本研究中，我们报道了一种简便的制备方法，即用喹吖啶酮（QA）工业颜料敏化的TiO纳米颗粒，用于在红光（λ = 620 nm）下将甘油水相氧化为甘油醛，在存在TEMPO助催化剂的情况下，生产率达到47.5±5.0 μmol g⁻¹ h⁻¹，选择性为80%。这种杂化材料优于单一成分，在红光下可循环使用至少5次以上，同时保持完整的生产率；此外，它在绿光、黄光或白光照射下也能发挥作用，展现出多功能性。我们相信这项工作将为利用工业颜料敏化材料在利用低能量光的光催化中提供一条新途径，为该领域的未来发展提供新策略。
