Unprecedented stepwise electron transfer and photocatalysis in supramolecular assembly derived hybrid single-layer two-dimensional nanosheets in water

• Published in: Chinese chemical letters
• Main Authors: Fan, Yan, Tan, Jiao, Zou, Cuijuan, Hu, Xuliang, Feng, Xing, Ni, Xin-Long
• Format: Journal Article
• Language: English
• Published: Elsevier B.V
• Subjects: Host-guest recognition; Hybrid single-layer 2D materials; Outer-surface interactions; Photocatalysis; Hybrid single-layer 2D materials; Outer-surface interactions; Photocatalysis; Host-guest recognition
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2024.110101

Herein, a simple and effective outer-surface interactions assisted supramolecular hierarchical assembly has been first exploited to uniformly distribute tungstosilicic acid (TSA) inside the porous structure of cucurbit[10]uril-based single-layer 2D supramolecular-organic-frameworks (Q[10]-SOFs) in water. Importantly, the 2D Q[10]-SOFs can further serve as light harvesting antenna, achieving fast energy transfer to the embedded redox-active TSA upon photoexcitation, resulting in efficient visible light-driven selective oxidation of benzyl alcohols into the corresponding aldehydes in high yield at room temperature. Further studies revealed that the integrated of 2D Q[10]-SOFs and TSA played a key role in the catalytic process, due to the presence of a novel stepwise electron transfer route in the single-layer hybrid 2D structures. A simple and effective outer-surface interactions assisted supramolecular hierarchical assembly has been exploited to construct a stable hybrid single-layer 2D materials, which exhibited efficient light-absorption and photocatalysis in water. [Display omitted]