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 BiWO 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 BiWO surface produce bountiful reactive oxygen species for mineralizing VOCs and sweeping bacteria. Enriched with •O and •OH, a 15 cm*5 cm Na-BiWO mesh can completely degrade 30 ppm toluene in 0.45 dm 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-BiWO mesh, enabling the rapid elimination of 1 ppm toluene, 2 ppm formaldehyde, and bacteria within a 120 dm test space.

中文翻译：

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用于便携式空气净化器的一体式自承式 Na-Bi2WO6 光催化剂：层流分裂提高了矿化甲苯和消毒的高效能


如果空气净化器便于携带、能够去除挥发性有机化学物质并减少与细菌的接触，那么它可以提供清洁的空气，将会受到欢迎。在此，在 W 网格上生长的超薄且致密的 BiWO 纳米片专门由于 Na 驱动层流分裂而提供丰富的氧空位。在可见光下，光生载流子沿着超薄 BiWO 表面流动，产生丰富的活性氧，用于矿化 VOC 和清除细菌。富含•O和•OH的15cm*5cm Na-BiWO网可在0.45dm反应器中1小时内完全降解30ppm甲苯，且不产生苯等有毒中间体，连续使用后其功效仅衰减4% 14小时跑步。用Na-BiWO网组装成杯形空气净化器，能够在120dm测试空间内快速消除1ppm甲苯、2ppm甲醛和细菌。