High surface area Ag-TiO2 nanotubes for solar/visible-light photocatalytic degradation of ceftiofur sodium

- Large surface area TiO2 nanotubes have been synthesized and modified with Ag NPs.
- Ag-TiO2 NTs show very good charge separation due to 1D charge delocalization.
- They exhibit excellent photocatalytic degradation of CFS under UV-vis light.
- It photocatalytically activates HSO5− to produce OH and SO4− simultaneously.
- Ag-TiO2 NTs retain their photocatalytic activity at least up to 4 cycles.