The development of advanced photocatalysts for CO 2 reduction (CO 2 R) has attracted
intensive interest but is severely plagued by the intrinsically narrow photo-responsive range,
inefficient carrier separation of the current supports. Herein, the unconventional atomic
surface concaves with Bi-O-Br complex vacancies on thin Bi 5 O 7 Br nanotubes were
designed and successfully synthesized. This concave-rich structures provide electron
localized enrichment regions that could address the above two issues simultaneously. The …

The development of advanced photocatalysts for CO2 reduction (CO2R) has attracted
intensive interest but is severely plagued by the intrinsically narrow photo-responsive range,
inefficient carrier separation of the current supports. Herein, the unconventional atomic
surface concaves with Bi-O-Br complex vacancies on thin Bi5O7Br nanotubes were
designed and successfully synthesized. This concave-rich structures provide electron
localized enrichment regions that could address the above two issues simultaneously. The …