Constructing In-Plane Energy Funnel in Bismuth Oxyhalide to Achieve Spatial Carrier Accumulation

Open AccessCCS ChemistryRESEARCH ARTICLES21 Aug 2024Constructing In-Plane Energy Funnel in Bismuth Oxyhalide to Achieve Spatial Carrier Accumulation Xin He, Xia Zhong, Lei Li, Shu Shang, Wen Si, Hui Wang, Xiaodong Zhang and Yi Xie Xin He , Xia Zhong , Lei Li , Shu Shang , Wen Si , Hui Wang , Xiaodong Zhang and Yi Xie Cite this: CCS Chemistry. 2024;0:1–33https://doi.org/10.31635/ccschem.024.202404564 SectionsSupplemental MaterialAboutPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareFacebookTwitterLinked InEmail Owing to its effectiveness in regulating charge separation and migration, heterostructure has been widely employed in gaining advanced photocatalysts. However, once the anisotropic crystal and electronic characteristics of catalysts are considered, those general non-directional heterostructures fabricated by casually assembling different components seems to be unable to maximize the effectiveness. Herein we highlighted spatial orientation should be taken into account in designing heterostructure-based photocatalysts. By taking bismuth oxyhalide as a model, we fabricated an in-plane heterostructure with (001)-facet exposure, where BiOCl and BiOClxBr1−x composed the interior and edge components, respectively. With the combination of spatial-resolved analyses and theoretical simulations, we demonstrated that such heterostructure orientation facilitated the accumulation of photoinduced charge carriers in the reactive edge region, attributable to the directional migration of interior charge carrier driven by the in-plane energy-level gradient. Benefit from these features, this in-plane heterostructure showed excellent photocatalytic performance in triggering C-H fluorination under visible light illumination. Download figure Download PowerPoint Previous articleNext article FiguresReferencesRelatedDetails Issue AssignmentNot Yet AssignedSupporting Information Copyright & Permissions© 2024 Chinese Chemical Society Downloaded 0 times PDF downloadLoading ...