What question did this study set out to answer?

The aim is to explore photocorrosion as a mechanism for activating biVO4 photoanodes.

April 19, 2026Nanoscale1 citations

From Photocorrosion to Photoactivity: Sulfite-Gated Self-Etching of BiVO4 into Black Bi-O Phase

HHHangyu HuEast China University of Science and Technology YHYang HanEast China University of Science and Technology ZBZhemeng BaoEast China University of Science and Technology

Puntos clave

The aim is to explore photocorrosion as a mechanism for activating biVO4 photoanodes.
Utilized sulfite anions to trigger transformation in biVO4.
Investigated the effects on self-etching and photoactivity.
Analyzed the resulting structural changes and performance enhancements.
Sulfite treatment successfully activated biVO4, enhancing its photoactivity.
The process redefined photocorrosion as a programmable mechanism rather than merely a failure mode.
The transformation yielded a black bi-O phase with improved characteristics.

Resumen

Photocorrosion has long been viewed as the primary failure mode limiting BiVO4 photoanodes. Herein, we redefine it as a programmable pathway for activation. We demonstrate that sulfite anions, beyond acting...

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