College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, P. R. China.
Chemistry. 2018 Oct 9;24(56):15019-15025. doi: 10.1002/chem.201802747. Epub 2018 Sep 11.
Photocatalysis is an efficient approach to degrade hydrogen sulfide (H S) and titanium dioxide (TiO ) is commonly used as a catalyst for H S degradation. However, the low separation rate of photoinduced carriers and low gas adsorption ability of TiO limit its H S photocatalytic decomposition rate. In this paper, single-crystalline TiO nanowires are assembled on one-dimensional carbon nanofibers (CNFs) and a tunable metal-organic framework (MOF) coating is fabricated on the surface of the TiO nanowires using a versatile step-by-step self-assembly strategy. The excellent photocatalytic properties of the resulting membrane originate from the ability of the CNFs to rapidly transport charge carriers and the high and regenerable H S adsorption ability of the MOF. The photocatalytic mechanism of the as-prepared material was also discussed. Therefore, this work provides a promising method to improve the photocatalytic performance of H S degradation.
光催化是一种有效降解硫化氢（H₂S）的方法，二氧化钛（TiO₂）通常用作 H₂S 降解的催化剂。然而，光生载流子的低分离率和 TiO₂的低气体吸附能力限制了其 H₂S 光催化分解速率。在本文中，单晶 TiO 纳米线组装在一维碳纳米纤维（CNF）上，并使用通用的分步自组装策略在 TiO 纳米线表面制备可调谐的金属有机骨架（MOF）涂层。所得膜的优异光催化性能源于 CNF 快速传输载流子的能力和 MOF 的高且可再生的 H₂S 吸附能力。还讨论了所制备材料的光催化机制。因此，这项工作为提高 H₂S 降解的光催化性能提供了一种有前途的方法。
