Abstract
An air purifier that provides clean air will be popular if it is portable and capable of removing volatile organic chemicals and reducing exposure to bacteria. Herein, ultra-thin and dense Bi2WO6 nanoflakes grown on W meshes specialize in offering abundant oxygen vacancies due to Na+ driving laminar splitting. Under visible lights, the photogenerated carriers streaming along the ultrathin Bi2WO6 surface produce bountiful reactive oxygen species for mineralizing VOCs and sweeping bacteria. Enriched with •O2- and •OH, a 15 cm*5 cm Na-Bi2WO6 mesh can completely degrade 30 ppm toluene in 0.45 dm3 reactor in 1 hour without producing any toxic intermediates like benzene, and its efficacy only decayed by 4% after a continuous 14-hour run. A cup-shaped air purifier was assembled with the Na-Bi2WO6 mesh, enabling the rapid elimination of 1 ppm toluene, 2 ppm formaldehyde, and bacteria within a 120 dm3 test space.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
