Hierarchical Titanium Dioxide Nanowire/Metal–Organic Framework/Carbon Nanofiber Membranes for Highly Efficient Photocatalytic Degradation of Hydrogen Sulfide

Photocatalysis is an efficient approach to degrade hydrogen sulfide (H 2 S) and titanium dioxide (TiO 2 ) is commonly used as a catalyst for H 2 S degradation. However, the low separation rate of photoinduced carriers and low gas adsorption ability of TiO 2 limit its H 2 S photocatalytic decomposition rate. In this paper, single‐crystalline TiO 2 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 2 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 2 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 2 S degradation.