Engineering Lattice Disorder on a Photocatalyst: Photochromic BiOBr Nanosheets Enhance Activation of Aromatic C–H Bonds via Water Oxidation
Tsinghua University · University of Electronic Science and Technology of China · +5 more institutions
Abstract
Solar-driven photocatalytic reactions can mildly activate hydrocarbon C–H bonds to produce value-added chemicals. However, the inefficient utilization of photogenerated carriers hinders the application. Here, we report reversible photochromic BiOBr (denoted as p-BiOBr) nanosheets that were colored by trapping photogenerated holes upon visible light irradiation and bleached by water oxidation to generate hydroxyl radicals, demonstrating enhanced carrier separation and water oxidation. The photocatalytic coupling and oxidation reactions of ethylbenzene were efficiently realized by p-BiOBr in a water-based medium under ambient temperature and pressure (apparent quantum yield is 14 times that of pristine BiOBr).…
Citation impact
- FWCI
- 11.56
- Percentile
- 100%
- References
- 58
Authors
13Topics & keywords
- Photocatalysis
- Chemistry
- Photochemistry
- Photochromism
- Radical
- Catalysis
- Quantum yield
- Chemical engineering
- Clean water and sanitation