Chloride-accelerated Cu-Fenton chemistry for biofilm removalElectronic supplementary information (ESI) available: Experimental section and supporting data. See DOI: 10.1039/c7cc00928c

Biofilms present challenges to numerous industries. Herein, a simple approach was developed based on chloride-accelerated Fenton chemistry, where copper oxide nanoparticles facilitate efficient generation of reactive chlorine species for biofilm removal. Chloride ions dramatically enhance the antibacterial and anti-biofilm capability of Cu-based Fenton reagents.