LAUSR

Abstract Here, we are reporting a new visible-light-driven composite photocatalyst Ti3C2-Bi/BiOCl which builts from Ti3C2 nanosheets and Bi/BiOCl microspheres. It exhibits a higher photocatalytic performance than BiOCl and Bi/BiOCl in degrading antibiotic ciprofloxacin (CIP) under visible light illumination. Such an improved activity for Ti3C2-Bi/BiOCl can be attributed to the introduction of Ti3C2 and Bi. The Bi and Ti3C2 not only significantly broaden the light adsorption of Bi/BiOCl in visible-light region, but also can be served as an excellent “electron trap” for boosting the separation and transfer of photogenerated electrons/holes in Ti3C2-Bi/BiOCl because of its favorable electrical conductivity. Moreover, Ti3C2-Bi/BiOCl shows an well reusability in the five cycles of CIP degradation. This work not only provides a new efficient heterojunction photocatalyst for pollutant abatement in water, but also gives some further insights in constructing multi-component photocatalysts that can work under visible light.